{"title":"Hydro-Gear Hydrostatic Transaxles","description":"\u003cp\u003eComplete, genuine Hydro-Gear hydrostatic transaxles for zero-turn mowers and lawn tractors, listed by the exact model number on the unit's label (for example ZD-DNBB-7MDC-24PX). Hydro-Gear builds each model to an OEM's specification, and similar-looking units can differ inside, so Hydro-Gear advises against substituting a different model. Match the full number, and check whether you need the left or right side.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eEZT (ZT-2200) and ZT-2100\u003c\/a\u003e: residential, up to 215 lb-ft and 900 lb machines.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/hydro-gear-zt-2800\"\u003eZT-2800\u003c\/a\u003e: estate grade, up to 300 lb-ft and 1,000 lb machines.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/hydro-gear-zt-3100-zt-3200\"\u003eZT-3100 \/ ZT-3200\u003c\/a\u003e: entry and light commercial, up to 350 and 470 lb-ft.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eZT-3400 \/ ZT-3600 \/ ZT-3800\u003c\/a\u003e: mid-size and premium commercial, up to 500 lb-ft.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/hydro-gear-zt-4400-zt-5400\"\u003eZT-4400 \/ ZT-5400\u003c\/a\u003e: heavy commercial, up to 575 and 700 lb-ft.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure which you have? See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e or compare series in our \u003ca href=\"\/pages\/hydro-gear-zt-2800-vs-zt-3100-vs-zt-3200-vs-zt-3400\"\u003eZT-2800 vs ZT-3100 vs ZT-3200 vs ZT-3400 guide\u003c\/a\u003e.\u003c\/p\u003e\u003cp class=\"tt-badge\"\u003e\u003cstrong\u003eFree shipping\u003c\/strong\u003e on Hydro-Gear items $100 and up (lower 48).\u003c\/p\u003e","products":[{"product_id":"hydro-gear-zc-aubb-3dra-3ppx-hydro-gear-unit-zc-aubb-3dra-3ppx","title":"Hydro-Gear ZC-AUBB-3DRA-3PPX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZC-AUBB-3DRA-3PPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZC-AUBB-3DRA-3PPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZC-AUBB-3DRA-3PPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump \/ 10 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e7 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 56 fl oz (1.75 qt) per ZT-2200 unit. Fill to 0.75–1.50 in below the top of the fill port (oil at 50–100°F).\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's manual says the EZT is factory filled and sealed and does not need routine oil maintenance; add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eThe filter is internal; Hydro-Gear lists no separate service filter part number for the EZT.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZC-AUBB-3DRA-3PPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (prefixes ZA, ZB, ZC and ZD identify the EZT \/ ZT-2200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear says the EZT is factory filled and sealed and does not require routine oil maintenance. Only units with E or F as the third character of the model number (format ZC-Exxx-...) have a drain plug. The third character of ZC-AUBB-3DRA-3PPX is “A”, so this unit is not one of the drain-plug versions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614338580797,"sku":"GD-ZC-AUBB-3DRA-3PPX","price":721.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-ZC-AUBB-3DRA-3PPX-real.webp?v=1791301240"},{"product_id":"hydro-gear-zc-aubb-8d8b-2wpx-hydro-gear-unit-zc-aubb-8d8b-2wpx","title":"Hydro-Gear ZC-AUBB-8D8B-2WPX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZC-AUBB-8D8B-2WPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZC-AUBB-8D8B-2WPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Husqvarna 510375602. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZC-AUBB-8D8B-2WPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump \/ 10 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e7 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 56 fl oz (1.75 qt) per ZT-2200 unit. Fill to 0.75–1.50 in below the top of the fill port (oil at 50–100°F).\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's manual says the EZT is factory filled and sealed and does not need routine oil maintenance; add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eThe filter is internal; Hydro-Gear lists no separate service filter part number for the EZT.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZC-AUBB-8D8B-2WPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (prefixes ZA, ZB, ZC and ZD identify the EZT \/ ZT-2200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear says the EZT is factory filled and sealed and does not require routine oil maintenance. Only units with E or F as the third character of the model number (format ZC-Exxx-...) have a drain plug. The third character of ZC-AUBB-8D8B-2WPX is “A”, so this unit is not one of the drain-plug versions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614338711869,"sku":"GD-ZC-AUBB-8D8B-2WPX","price":707.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/rfqqq-box-placeholder_3e10887c-d47e-41f5-b826-19824506ab9b.jpg?v=1790934747"},{"product_id":"hydro-gear-zc-dmbb-4ddc-2ppx-hydro-gear-unit-zc-dmbb-4ddc-2ppx","title":"Hydro-Gear ZC-DMBB-4DDC-2PPX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZC-DMBB-4DDC-2PPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZC-DMBB-4DDC-2PPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZC-DMBB-4DDC-2PPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump \/ 10 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e7 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 56 fl oz (1.75 qt) per ZT-2200 unit. Fill to 0.75–1.50 in below the top of the fill port (oil at 50–100°F).\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's manual says the EZT is factory filled and sealed and does not need routine oil maintenance; add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eThe filter is internal; Hydro-Gear lists no separate service filter part number for the EZT.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZC-DMBB-4DDC-2PPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (prefixes ZA, ZB, ZC and ZD identify the EZT \/ ZT-2200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear says the EZT is factory filled and sealed and does not require routine oil maintenance. Only units with E or F as the third character of the model number (format ZC-Exxx-...) have a drain plug. The third character of ZC-DMBB-4DDC-2PPX is “D”, so this unit is not one of the drain-plug versions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614338744637,"sku":"GD-ZC-DMBB-4DDC-2PPX","price":676.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/web_ZC-DMBB-4DDC-2PPX.jpg?v=1790889725"},{"product_id":"hydro-gear-zc-dmbb-4mdc-24px-hydro-gear-unit-zc-dmbb-4mdc-24px","title":"Hydro-Gear ZC-DMBB-4MDC-24PX EZT Hydrostatic Transaxle (LH)","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZC-DMBB-4MDC-24PX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle, left-hand (LH). The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZC-DMBB-4MDC-24PX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZC-DMBB-4MDC-24PX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSide\u003c\/th\u003e\n\u003ctd\u003eLeft-hand (LH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump \/ 10 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e7 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 56 fl oz (1.75 qt) per ZT-2200 unit. Fill to 0.75–1.50 in below the top of the fill port (oil at 50–100°F).\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's manual says the EZT is factory filled and sealed and does not need routine oil maintenance; add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eThe filter is internal; Hydro-Gear lists no separate service filter part number for the EZT.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZC-DMBB-4MDC-24PX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (prefixes ZA, ZB, ZC and ZD identify the EZT \/ ZT-2200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear says the EZT is factory filled and sealed and does not require routine oil maintenance. Only units with E or F as the third character of the model number (format ZC-Exxx-...) have a drain plug. The third character of ZC-DMBB-4MDC-24PX is “D”, so this unit is not one of the drain-plug versions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614338810173,"sku":"GD-ZC-DMBB-4MDC-24PX","price":721.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/web_ZC-DMBB-4MDC-24PX.jpg?v=1790889728"},{"product_id":"hydro-gear-zd-anbb-7mdb-34px-hydro-gear-part-zd-anbb-7mdb-34px","title":"Hydro-Gear ZD-ANBB-7MDB-34PX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZD-ANBB-7MDB-34PX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZD-ANBB-7MDB-34PX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCub Cadet\u003c\/td\u003e\n\u003ctd\u003eUltima ZT 1 50\"\/54\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zd-dnbb-7mdc-24px-hydro-gear-part-zd-dnbb-7mdc-24px\"\u003eZD-DNBB-7MDC-24PX\u003c\/a\u003e on Cub Cadet Ultima ZT 1 50\"\/54\" — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZD-ANBB-7MDB-34PX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump \/ 10 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e7 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 56 fl oz (1.75 qt) per ZT-2200 unit. Fill to 0.75–1.50 in below the top of the fill port (oil at 50–100°F).\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's manual says the EZT is factory filled and sealed and does not need routine oil maintenance; add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eThe filter is internal; Hydro-Gear lists no separate service filter part number for the EZT.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZD-ANBB-7MDB-34PX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (prefixes ZA, ZB, ZC and ZD identify the EZT \/ ZT-2200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear says the EZT is factory filled and sealed and does not require routine oil maintenance. Only units with E or F as the third character of the model number (format ZC-Exxx-...) have a drain plug. The third character of ZD-ANBB-7MDB-34PX is “A”, so this unit is not one of the drain-plug versions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339039549,"sku":"GD-ZD-ANBB-7MDB-34PX","price":721.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-ZD-ANBB-7MDB-34PX-box.jpg?v=1791300493"},{"product_id":"hydro-gear-zd-aubb-2ldb-2ppx-hydro-gear-part-zd-aubb-2ldb-2ppx","title":"Hydro-Gear ZD-AUBB-2LDB-2PPX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZD-AUBB-2LDB-2PPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZD-AUBB-2LDB-2PPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZD-AUBB-2LDB-2PPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump \/ 10 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e7 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 56 fl oz (1.75 qt) per ZT-2200 unit. Fill to 0.75–1.50 in below the top of the fill port (oil at 50–100°F).\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's manual says the EZT is factory filled and sealed and does not need routine oil maintenance; add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eThe filter is internal; Hydro-Gear lists no separate service filter part number for the EZT.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZD-AUBB-2LDB-2PPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (prefixes ZA, ZB, ZC and ZD identify the EZT \/ ZT-2200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear says the EZT is factory filled and sealed and does not require routine oil maintenance. Only units with E or F as the third character of the model number (format ZC-Exxx-...) have a drain plug. The third character of ZD-AUBB-2LDB-2PPX is “A”, so this unit is not one of the drain-plug versions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339072317,"sku":"GD-ZD-AUBB-2LDB-2PPX","price":730.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-ZD-AUBB-2LDB-2PPX-box.jpg?v=1791300489"},{"product_id":"hydro-gear-zd-aubb-3d5a-3ppx-hydro-gear-part-zd-aubb-3d5a-3ppx","title":"Hydro-Gear ZD-AUBB-3D5A-3PPX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZD-AUBB-3D5A-3PPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZD-AUBB-3D5A-3PPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Toro 139-7470. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExmark\u003c\/td\u003e\n\u003ctd\u003eQuest S-Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToro\u003c\/td\u003e\n\u003ctd\u003eTimecutter 50\" 18-inch tires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToro\u003c\/td\u003e\n\u003ctd\u003eTimecutter 54\" 20-inch tires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zd-dubb-3d5a-2ppx-hydro-gear-part-zd-dubb-3d5a-2ppx\"\u003eZD-DUBB-3D5A-2PPX\u003c\/a\u003e on Exmark Quest S-Series, Toro Timecutter 50\" 18-inch tires and Toro Timecutter 54\" 20-inch tires — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZD-AUBB-3D5A-3PPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump \/ 10 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e7 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 56 fl oz (1.75 qt) per ZT-2200 unit. Fill to 0.75–1.50 in below the top of the fill port (oil at 50–100°F).\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's manual says the EZT is factory filled and sealed and does not need routine oil maintenance; add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eThe filter is internal; Hydro-Gear lists no separate service filter part number for the EZT.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZD-AUBB-3D5A-3PPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (prefixes ZA, ZB, ZC and ZD identify the EZT \/ ZT-2200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear says the EZT is factory filled and sealed and does not require routine oil maintenance. Only units with E or F as the third character of the model number (format ZC-Exxx-...) have a drain plug. The third character of ZD-AUBB-3D5A-3PPX is “A”, so this unit is not one of the drain-plug versions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339137853,"sku":"GD-ZD-AUBB-3D5A-3PPX","price":711.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/web_ZD-AUBB-3D5A-3PPX.jpg?v=1790889738"},{"product_id":"hydro-gear-zd-dnbb-7mdc-24px-hydro-gear-part-zd-dnbb-7mdc-24px","title":"Hydro-Gear ZD-DNBB-7MDC-24PX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZD-DNBB-7MDC-24PX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZD-DNBB-7MDC-24PX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCub Cadet\u003c\/td\u003e\n\u003ctd\u003eUltima ZT 1 50\"\/54\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zd-anbb-7mdb-34px-hydro-gear-part-zd-anbb-7mdb-34px\"\u003eZD-ANBB-7MDB-34PX\u003c\/a\u003e on Cub Cadet Ultima ZT 1 50\"\/54\" — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZD-DNBB-7MDC-24PX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump \/ 10 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e7 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 56 fl oz (1.75 qt) per ZT-2200 unit. Fill to 0.75–1.50 in below the top of the fill port (oil at 50–100°F).\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's manual says the EZT is factory filled and sealed and does not need routine oil maintenance; add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eThe filter is internal; Hydro-Gear lists no separate service filter part number for the EZT.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZD-DNBB-7MDC-24PX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (prefixes ZA, ZB, ZC and ZD identify the EZT \/ ZT-2200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear says the EZT is factory filled and sealed and does not require routine oil maintenance. Only units with E or F as the third character of the model number (format ZC-Exxx-...) have a drain plug. The third character of ZD-DNBB-7MDC-24PX is “D”, so this unit is not one of the drain-plug versions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339236157,"sku":"GD-ZD-DNBB-7MDC-24PX","price":702.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-ZD-DNBB-7MDC-24PX-box.jpg?v=1791300497"},{"product_id":"hydro-gear-zd-dubb-3d5a-2ppx-hydro-gear-part-zd-dubb-3d5a-2ppx","title":"Hydro-Gear ZD-DUBB-3D5A-2PPX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZD-DUBB-3D5A-2PPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZD-DUBB-3D5A-2PPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Toro 139-7471. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExmark\u003c\/td\u003e\n\u003ctd\u003eQuest S-Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToro\u003c\/td\u003e\n\u003ctd\u003eTimecutter 50\" 18-inch tires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToro\u003c\/td\u003e\n\u003ctd\u003eTimecutter 54\" 20-inch tires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zd-aubb-3d5a-3ppx-hydro-gear-part-zd-aubb-3d5a-3ppx\"\u003eZD-AUBB-3D5A-3PPX\u003c\/a\u003e on Exmark Quest S-Series, Toro Timecutter 50\" 18-inch tires and Toro Timecutter 54\" 20-inch tires — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZD-DUBB-3D5A-2PPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump \/ 10 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e7 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 56 fl oz (1.75 qt) per ZT-2200 unit. Fill to 0.75–1.50 in below the top of the fill port (oil at 50–100°F).\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's manual says the EZT is factory filled and sealed and does not need routine oil maintenance; add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eThe filter is internal; Hydro-Gear lists no separate service filter part number for the EZT.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZD-DUBB-3D5A-2PPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (prefixes ZA, ZB, ZC and ZD identify the EZT \/ ZT-2200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear says the EZT is factory filled and sealed and does not require routine oil maintenance. Only units with E or F as the third character of the model number (format ZC-Exxx-...) have a drain plug. The third character of ZD-DUBB-3D5A-2PPX is “D”, so this unit is not one of the drain-plug versions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339334461,"sku":"GD-ZD-DUBB-3D5A-2PPX","price":736.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-ZD-DUBB-3D5A-2PPX-real.webp?v=1791300106"},{"product_id":"hydro-gear-zl-gpeb-sclb-2glx-hydro-gear-part-zl-gpeb-sclb-2glx","title":"Hydro-Gear ZL-GPEB-SCLB-2GLX ZT-3100 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZL-GPEB-SCLB-2GLX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3100 hydrostatic transaxle. The ZT-3100 is Hydro-Gear's entry-level commercial-grade transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZL-GPEB-SCLB-2GLX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Exmark 135-0139. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3100-guide\"\u003eHydro-Gear ZT-3100 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3100-zt-3200\"\u003eShop all ZT-3100 \u0026amp; ZT-3200 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExmark\u003c\/td\u003e\n\u003ctd\u003eRadius E-Series 60\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExmark\u003c\/td\u003e\n\u003ctd\u003eRadius S-Series 48\"\/52\"\/60\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zl-kpeb-sclc-2glx-hydro-gear-part-zl-kpeb-sclc-2glx\"\u003eZL-KPEB-SCLC-2GLX\u003c\/a\u003e on Exmark Radius E-Series 60\" and Exmark Radius S-Series 48\"\/52\"\/60\" — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZL-GPEB-SCLB-2GLX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc pump \/ 16 cc motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,600 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e350 lb-ft (474 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e9 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,200 lb (544 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in; tapered, 4-bolt or 5-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e32.5 lb (14.7 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall reduction (ZL prefix)\u003c\/th\u003e\n\u003ctd\u003e24.74:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 2 qt per transaxle (excluding the expansion tank and hose).\u003c\/li\u003e\n\u003cli\u003eFilter: Hydro-Gear \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e spin-on (25 micron nominal \/ 40 micron absolute). Hand-tighten, then turn 3\/4 to 1 full turn after the gasket contacts the base.\u003c\/li\u003e\n\u003cli\u003eChange oil and filter first at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZL-GPEB-SCLB-2GLX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZH-JPBB-SF7B-2XLX (prefixes ZH through ZM cover the ZT-2800, ZT-3100 and ZT-3200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhich filter does the ZT-3100 use?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear specifies the external spin-on filter \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (or equivalent), rated 25 micron nominal \/ 40 micron absolute. Change it with the oil: first at 75–100 hours, then every 400 hours.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339399997,"sku":"GD-ZL-GPEB-SCLB-2GLX","price":1148.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-ZL-GPEB-SCLB-2GLX-real.webp?v=1791300083"},{"product_id":"hydro-gear-zl-kpeb-sclc-2glx-hydro-gear-part-zl-kpeb-sclc-2glx","title":"Hydro-Gear ZL-KPEB-SCLC-2GLX ZT-3100 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZL-KPEB-SCLC-2GLX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3100 hydrostatic transaxle. The ZT-3100 is Hydro-Gear's entry-level commercial-grade transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZL-KPEB-SCLC-2GLX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Exmark\/Toro 135-0140. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3100-guide\"\u003eHydro-Gear ZT-3100 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3100-zt-3200\"\u003eShop all ZT-3100 \u0026amp; ZT-3200 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExmark\u003c\/td\u003e\n\u003ctd\u003eRadius E-Series 60\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExmark\u003c\/td\u003e\n\u003ctd\u003eRadius S-Series 48\"\/52\"\/60\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zl-gpeb-sclb-2glx-hydro-gear-part-zl-gpeb-sclb-2glx\"\u003eZL-GPEB-SCLB-2GLX\u003c\/a\u003e on Exmark Radius E-Series 60\" and Exmark Radius S-Series 48\"\/52\"\/60\" — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZL-KPEB-SCLC-2GLX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc pump \/ 16 cc motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,600 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e350 lb-ft (474 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e9 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,200 lb (544 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in; tapered, 4-bolt or 5-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e32.5 lb (14.7 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall reduction (ZL prefix)\u003c\/th\u003e\n\u003ctd\u003e24.74:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 2 qt per transaxle (excluding the expansion tank and hose).\u003c\/li\u003e\n\u003cli\u003eFilter: Hydro-Gear \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e spin-on (25 micron nominal \/ 40 micron absolute). Hand-tighten, then turn 3\/4 to 1 full turn after the gasket contacts the base.\u003c\/li\u003e\n\u003cli\u003eChange oil and filter first at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZL-KPEB-SCLC-2GLX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZH-JPBB-SF7B-2XLX (prefixes ZH through ZM cover the ZT-2800, ZT-3100 and ZT-3200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhich filter does the ZT-3100 use?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear specifies the external spin-on filter \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (or equivalent), rated 25 micron nominal \/ 40 micron absolute. Change it with the oil: first at 75–100 hours, then every 400 hours.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339498301,"sku":"GD-ZL-KPEB-SCLC-2GLX","price":1178.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-ZL-KPEB-SCLC-2GLX-real.webp?v=1791300088"},{"product_id":"hydro-gear-zl-kpee-snlc-3gxx-hydro-gear-part-zl-kpee-snlc-3gxx","title":"Hydro-Gear ZL-KPEE-SNLC-3GXX ZT-3100 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZL-KPEE-SNLC-3GXX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3100 hydrostatic transaxle. The ZT-3100 is Hydro-Gear's entry-level commercial-grade transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZL-KPEE-SNLC-3GXX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3100-guide\"\u003eHydro-Gear ZT-3100 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3100-zt-3200\"\u003eShop all ZT-3100 \u0026amp; ZT-3200 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZL-KPEE-SNLC-3GXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc pump \/ 16 cc motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,600 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e350 lb-ft (474 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e9 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,200 lb (544 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in; tapered, 4-bolt or 5-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e32.5 lb (14.7 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall reduction (ZL prefix)\u003c\/th\u003e\n\u003ctd\u003e24.74:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 2 qt per transaxle (excluding the expansion tank and hose).\u003c\/li\u003e\n\u003cli\u003eFilter: Hydro-Gear \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e spin-on (25 micron nominal \/ 40 micron absolute). Hand-tighten, then turn 3\/4 to 1 full turn after the gasket contacts the base.\u003c\/li\u003e\n\u003cli\u003eChange oil and filter first at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZL-KPEE-SNLC-3GXX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZH-JPBB-SF7B-2XLX (prefixes ZH through ZM cover the ZT-2800, ZT-3100 and ZT-3200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhich filter does the ZT-3100 use?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear specifies the external spin-on filter \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (or equivalent), rated 25 micron nominal \/ 40 micron absolute. Change it with the oil: first at 75–100 hours, then every 400 hours.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339563837,"sku":"GD-ZL-KPEE-SNLC-3GXX","price":1025.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/rfqqq-box-placeholder_eb0ca26c-59b6-465a-a1ea-5b06cecd02b5.jpg?v=1790934768"},{"product_id":"hydro-gear-zu-gkef-sl7b-1uxx-hydro-gear-part-zu-gkef-sl7b-1uxx","title":"Hydro-Gear ZU-GKEF-SL7B-1UXX ZT-3400 Hydrostatic Transaxle (RH)","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZU-GKEF-SL7B-1UXX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle, right-hand (RH). The ZT-3400 is a Hydro-Gear transaxle designed for mid-size commercial zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZU-GKEF-SL7B-1UXX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZU-GKEF-SL7B-1UXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSide\u003c\/th\u003e\n\u003ctd\u003eRight-hand (RH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump \/ 16 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,600 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,600 lb (725 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.125 in; tapered, 4-bolt or 5-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall reduction (ZU prefix)\u003c\/th\u003e\n\u003ctd\u003e23.16:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil; 71.9 fl oz (2,126 ml) per unit without an internal expansion tank, 56.6 fl oz (1,674 ml) with one.\u003c\/li\u003e\n\u003cli\u003eFilter: Hydro-Gear \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (25 micron nominal \/ 40 micron absolute). Hand-tighten 3\/4 to 1 turn past gasket contact (110–130 lb-in).\u003c\/li\u003e\n\u003cli\u003eChange oil and filter first at 75–100 hours, then every 400 hours. Drain only when the oil is below 100°F.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZU-GKEF-SL7B-1UXX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like XX-XXXX-XXXX-XXXX; prefixes ZS, ZU, ZW, ZY and Z6 identify the ZT-3400. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhich filter does the ZT-3400 use?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear specifies the external spin-on filter \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (or equivalent), rated 25 micron nominal \/ 40 micron absolute. Change it with the oil: first at 75–100 hours, then every 400 hours.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339793213,"sku":"GD-ZU-GKEF-SL7B-1UXX","price":1205.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/web_ZU-GKEF-SL7B-1UXX.jpg?v=1790889755"},{"product_id":"hydro-gear-zu-kkeb-tllg-3jrx-hydro-gear-part-zu-kkeb-tllg-3jrx","title":"Hydro-Gear ZU-KKEB-TLLG-3JRX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZU-KKEB-TLLG-3JRX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear transaxle designed for mid-size commercial zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZU-KKEB-TLLG-3JRX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGravely\u003c\/td\u003e\n\u003ctd\u003ePro-Turn 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zu-gkeb-tllf-2jrx-zt-3400-hydrostatic-transaxle\"\u003eZU-GKEB-TLLF-2JRX\u003c\/a\u003e on Gravely Pro-Turn 100 — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZU-KKEB-TLLG-3JRX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump \/ 16 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,600 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,600 lb (725 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.125 in; tapered, 4-bolt or 5-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall reduction (ZU prefix)\u003c\/th\u003e\n\u003ctd\u003e23.16:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil; 71.9 fl oz (2,126 ml) per unit without an internal expansion tank, 56.6 fl oz (1,674 ml) with one.\u003c\/li\u003e\n\u003cli\u003eFilter: Hydro-Gear \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (25 micron nominal \/ 40 micron absolute). Hand-tighten 3\/4 to 1 turn past gasket contact (110–130 lb-in).\u003c\/li\u003e\n\u003cli\u003eChange oil and filter first at 75–100 hours, then every 400 hours. Drain only when the oil is below 100°F.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZU-KKEB-TLLG-3JRX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like XX-XXXX-XXXX-XXXX; prefixes ZS, ZU, ZW, ZY and Z6 identify the ZT-3400. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhich filter does the ZT-3400 use?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear specifies the external spin-on filter \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (or equivalent), rated 25 micron nominal \/ 40 micron absolute. Change it with the oil: first at 75–100 hours, then every 400 hours.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339858749,"sku":"GD-ZU-KKEB-TLLG-3JRX","price":1120.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/rfqqq-box-placeholder_a4e47419-c6b9-4fa2-b12e-d5647b519e17.jpg?v=1790934771"},{"product_id":"hydro-gear-zu-kkef-sl7c-1uxx-hydro-gear-part-zu-kkef-sl7c-1uxx","title":"Hydro-Gear ZU-KKEF-SL7C-1UXX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZU-KKEF-SL7C-1UXX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear transaxle designed for mid-size commercial zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZU-KKEF-SL7C-1UXX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZU-KKEF-SL7C-1UXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump \/ 16 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,600 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,600 lb (725 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.125 in; tapered, 4-bolt or 5-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall reduction (ZU prefix)\u003c\/th\u003e\n\u003ctd\u003e23.16:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil; 71.9 fl oz (2,126 ml) per unit without an internal expansion tank, 56.6 fl oz (1,674 ml) with one.\u003c\/li\u003e\n\u003cli\u003eFilter: Hydro-Gear \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (25 micron nominal \/ 40 micron absolute). Hand-tighten 3\/4 to 1 turn past gasket contact (110–130 lb-in).\u003c\/li\u003e\n\u003cli\u003eChange oil and filter first at 75–100 hours, then every 400 hours. Drain only when the oil is below 100°F.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZU-KKEF-SL7C-1UXX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like XX-XXXX-XXXX-XXXX; prefixes ZS, ZU, ZW, ZY and Z6 identify the ZT-3400. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhich filter does the ZT-3400 use?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear specifies the external spin-on filter \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (or equivalent), rated 25 micron nominal \/ 40 micron absolute. Change it with the oil: first at 75–100 hours, then every 400 hours.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614339924285,"sku":"GD-ZU-KKEF-SL7C-1UXX","price":1167.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/rfqqq-box-placeholder_a72e0004-bacf-439e-b518-e36fd54f6b35.jpg?v=1790934775"},{"product_id":"hydro-gear-zu-kpeb-sclc-21lx-hydro-gear-part-zu-kpeb-sclc-21lx","title":"Hydro-Gear ZU-KPEB-SCLC-21LX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZU-KPEB-SCLC-21LX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear transaxle designed for mid-size commercial zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZU-KPEB-SCLC-21LX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExmark\u003c\/td\u003e\n\u003ctd\u003eRadius X-Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToro\u003c\/td\u003e\n\u003ctd\u003eZ Master 2000 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zu-gpeb-sclb-21lx-zt-3400-hydrostatic-transaxle\"\u003eZU-GPEB-SCLB-21LX\u003c\/a\u003e on Exmark Radius X-Series and Toro Z Master 2000 Series — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZU-KPEB-SCLC-21LX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump \/ 16 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,600 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,600 lb (725 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.125 in; tapered, 4-bolt or 5-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall reduction (ZU prefix)\u003c\/th\u003e\n\u003ctd\u003e23.16:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil; 71.9 fl oz (2,126 ml) per unit without an internal expansion tank, 56.6 fl oz (1,674 ml) with one.\u003c\/li\u003e\n\u003cli\u003eFilter: Hydro-Gear \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (25 micron nominal \/ 40 micron absolute). Hand-tighten 3\/4 to 1 turn past gasket contact (110–130 lb-in).\u003c\/li\u003e\n\u003cli\u003eChange oil and filter first at 75–100 hours, then every 400 hours. Drain only when the oil is below 100°F.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZU-KPEB-SCLC-21LX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like XX-XXXX-XXXX-XXXX; prefixes ZS, ZU, ZW, ZY and Z6 identify the ZT-3400. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhich filter does the ZT-3400 use?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear specifies the external spin-on filter \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (or equivalent), rated 25 micron nominal \/ 40 micron absolute. Change it with the oil: first at 75–100 hours, then every 400 hours.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614340022589,"sku":"GD-ZU-KPEB-SCLC-21LX","price":1110.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/rfqqq-box-placeholder_08580093-5137-4d1b-84f3-066f773ce25a.jpg?v=1790934778"},{"product_id":"hydro-gear-zc-dubb-8d8c-2wpx-hydro-gear-unit-zc-dubb-8d8c-2wpx","title":"Hydro-Gear ZC-DUBB-8D8C-2WPX EZT Hydrostatic Transaxle (LH)","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZC-DUBB-8D8C-2WPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle, left-hand (LH). The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZC-DUBB-8D8C-2WPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZC-DUBB-8D8C-2WPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSide\u003c\/th\u003e\n\u003ctd\u003eLeft-hand (LH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump \/ 10 cc\/rev motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e7 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 56 fl oz (1.75 qt) per ZT-2200 unit. Fill to 0.75–1.50 in below the top of the fill port (oil at 50–100°F).\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's manual says the EZT is factory filled and sealed and does not need routine oil maintenance; add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eThe filter is internal; Hydro-Gear lists no separate service filter part number for the EZT.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZC-DUBB-8D8C-2WPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (prefixes ZA, ZB, ZC and ZD identify the EZT \/ ZT-2200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear says the EZT is factory filled and sealed and does not require routine oil maintenance. Only units with E or F as the third character of the model number (format ZC-Exxx-...) have a drain plug. The third character of ZC-DUBB-8D8C-2WPX is “D”, so this unit is not one of the drain-plug versions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67614340186429,"sku":"GD-ZC-DUBB-8D8C-2WPX","price":712.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/web_ZC-DUBB-8D8C-2WPX.jpg?v=1790889768"},{"product_id":"hydro-gear-7103418yp-transaxle-hydro-gear","title":"Hydro-Gear 7103418YP Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear 7103418YP\u003c\/strong\u003e is a genuine Hydro-Gear hydrostatic transaxle.\u003c\/p\u003e\u003cp\u003eOrder by part number 7103418YP as listed in your equipment's parts list, and check it against the model number on the Hydro-Gear label. Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; if your machine uses a left and a right unit, check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003eHow to find your Hydro-Gear part number\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear\"\u003eShop all Hydro-Gear parts\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003e7103418YP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse the fluid your equipment maker specifies; fluid, capacity and procedures are in the Hydro-Gear service and repair manual for your unit (free Hydro-Gear service and repair manuals: \u003ca href=\"https:\/\/www.hydro-gear.com\/service-repair-manuals\/\"\u003ehydro-gear.com\/service-repair-manuals\u003c\/a\u003e).\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear 7103418YP and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (current format XX-XXXX-XXXX-XXXX). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67618079441213,"sku":"GD-BAS7103418YP","price":1550.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-BAS7103418YP.jpg?v=1790971170"},{"product_id":"hydro-gear-zm-keeb-tllg-3mlx-transaxle-hydrostatic-zt-310","title":"Hydro-Gear ZM-KEEB-TLLG-3MLX ZT-3100 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZM-KEEB-TLLG-3MLX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3100 hydrostatic transaxle. The ZT-3100 is Hydro-Gear's entry-level commercial-grade transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZM-KEEB-TLLG-3MLX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Gravely 04827700; Ariens\/Gravely 3283700. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3100-guide\"\u003eHydro-Gear ZT-3100 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3100-zt-3200\"\u003eShop all ZT-3100 \u0026amp; ZT-3200 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZM-KEEB-TLLG-3MLX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e10 cc pump \/ 16 cc motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,600 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e350 lb-ft (474 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed, up to (series spec)\u003c\/th\u003e\n\u003ctd\u003e9 mph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,200 lb (544 kg) gross vehicle weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e1.0 in; tapered, 4-bolt or 5-bolt flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e32.5 lb (14.7 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall reduction (ZM prefix)\u003c\/th\u003e\n\u003ctd\u003e27.23:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 2 qt per transaxle (excluding the expansion tank and hose).\u003c\/li\u003e\n\u003cli\u003eFilter: Hydro-Gear \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e spin-on (25 micron nominal \/ 40 micron absolute). Hand-tighten, then turn 3\/4 to 1 full turn after the gasket contacts the base.\u003c\/li\u003e\n\u003cli\u003eChange oil and filter first at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZM-KEEB-TLLG-3MLX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZH-JPBB-SF7B-2XLX (prefixes ZH through ZM cover the ZT-2800, ZT-3100 and ZT-3200). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhich filter does the ZT-3100 use?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear specifies the external spin-on filter \u003ca href=\"\/search?q=52114\"\u003e52114\u003c\/a\u003e (or equivalent), rated 25 micron nominal \/ 40 micron absolute. Change it with the oil: first at 75–100 hours, then every 400 hours.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67622411043133,"sku":"GD-ZM-KEEB-TLLG-3MLX","price":1034.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ProductDefault_31094deb-6138-456e-a0cd-285b97591477.gif?v=1791053517"},{"product_id":"hydro-gear-hyg200017727000-hydro-gear-314-0500-transaxle","title":"Hydro-Gear 200017727000 (314-0500) Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear 200017727000\u003c\/strong\u003e is a genuine Hydro-Gear hydrostatic transaxle.\u003c\/p\u003e\u003cp\u003eOrder by part number 200017727000 as listed in your equipment's parts list, and check it against the model number on the Hydro-Gear label. Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; if your machine uses a left and a right unit, check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003eHow to find your Hydro-Gear part number\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear\"\u003eShop all Hydro-Gear parts\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003e200017727000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAlso listed as\u003c\/th\u003e\n\u003ctd\u003e314-0500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse the fluid your equipment maker specifies; fluid, capacity and procedures are in the Hydro-Gear service and repair manual for your unit (free Hydro-Gear service and repair manuals: \u003ca href=\"https:\/\/www.hydro-gear.com\/service-repair-manuals\/\"\u003ehydro-gear.com\/service-repair-manuals\u003c\/a\u003e).\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear 200017727000 and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA (current format XX-XXXX-XXXX-XXXX). See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67637977678141,"sku":"GD-HYG200017727000","price":430.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-HYG200017727000-fast.jpg?v=1791313539"},{"product_id":"hydro-gear-bdu-21l-300-transmission-hydrostatic-bdu","title":"Hydro-Gear BDU-21L-300 BDU Hydrostatic Transmission","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear BDU-21L-300\u003c\/strong\u003e is a genuine Hydro-Gear BDU hydrostatic transmission.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (BDU-21L-300). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003eHow to find your Hydro-Gear part number\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear\"\u003eShop all Hydro-Gear parts\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eBDU-21L-300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eBDU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transmission\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse the fluid your equipment maker specifies; fluid, capacity and procedures are in the Hydro-Gear service and repair manual for your unit (free Hydro-Gear service and repair manuals: \u003ca href=\"https:\/\/www.hydro-gear.com\/service-repair-manuals\/\"\u003ehydro-gear.com\/service-repair-manuals\u003c\/a\u003e).\u003c\/li\u003e\n\u003cli\u003eAfter installing a replacement unit, purge air from the system following Hydro-Gear's procedure and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear BDU-21L-300 and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit. Current numbers look like BDU-21L-300; order the full number, including the suffix after the last dash. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67644718383421,"sku":"GD-HYGBDU-21L-300","price":2415.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-HYGBDU-21L-300-fast.jpg?v=1791388432"},{"product_id":"hydro-gear-bdu-21l-304-hydrostatic-transmission","title":"Hydro-Gear BDU-21L-304 BDU Hydrostatic Transmission","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear BDU-21L-304\u003c\/strong\u003e is a genuine Hydro-Gear BDU hydrostatic transmission.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (BDU-21L-304). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003eHow to find your Hydro-Gear part number\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear\"\u003eShop all Hydro-Gear parts\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eBDU-21L-304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eBDU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transmission\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse the fluid your equipment maker specifies; fluid, capacity and procedures are in the Hydro-Gear service and repair manual for your unit (free Hydro-Gear service and repair manuals: \u003ca href=\"https:\/\/www.hydro-gear.com\/service-repair-manuals\/\"\u003ehydro-gear.com\/service-repair-manuals\u003c\/a\u003e).\u003c\/li\u003e\n\u003cli\u003eAfter installing a replacement unit, purge air from the system following Hydro-Gear's procedure and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear BDU-21L-304 and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit. Current numbers look like BDU-21L-300; order the full number, including the suffix after the last dash. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67644718416189,"sku":"GD-HYGBDU-21L-304","price":887.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-HYGBDU-21L-304-fast.jpg?v=1791388433"},{"product_id":"hydro-gear-bdu-21l-305-hydrostatic-transmission","title":"Hydro-Gear BDU-21L-305 BDU Hydrostatic Transmission","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear BDU-21L-305\u003c\/strong\u003e is a genuine Hydro-Gear BDU hydrostatic transmission.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (BDU-21L-305). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003eHow to find your Hydro-Gear part number\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear\"\u003eShop all Hydro-Gear parts\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eBDU-21L-305\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eBDU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transmission\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse the fluid your equipment maker specifies; fluid, capacity and procedures are in the Hydro-Gear service and repair manual for your unit (free Hydro-Gear service and repair manuals: \u003ca href=\"https:\/\/www.hydro-gear.com\/service-repair-manuals\/\"\u003ehydro-gear.com\/service-repair-manuals\u003c\/a\u003e).\u003c\/li\u003e\n\u003cli\u003eAfter installing a replacement unit, purge air from the system following Hydro-Gear's procedure and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear BDU-21L-305 and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit. Current numbers look like BDU-21L-300; order the full number, including the suffix after the last dash. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67644718514493,"sku":"GD-HYGBDU-21L-305","price":947.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-HYGBDU-21L-305-fast.jpg?v=1791388435"},{"product_id":"hydro-gear-bdu-21l-306-hydrostatic-transmission","title":"Hydro-Gear BDU-21L-306 BDU Hydrostatic Transmission","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear BDU-21L-306\u003c\/strong\u003e is a genuine Hydro-Gear BDU hydrostatic transmission.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (BDU-21L-306). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003eHow to find your Hydro-Gear part number\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear\"\u003eShop all Hydro-Gear parts\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eBDU-21L-306\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eBDU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transmission\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse the fluid your equipment maker specifies; fluid, capacity and procedures are in the Hydro-Gear service and repair manual for your unit (free Hydro-Gear service and repair manuals: \u003ca href=\"https:\/\/www.hydro-gear.com\/service-repair-manuals\/\"\u003ehydro-gear.com\/service-repair-manuals\u003c\/a\u003e).\u003c\/li\u003e\n\u003cli\u003eAfter installing a replacement unit, purge air from the system following Hydro-Gear's procedure and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear BDU-21L-306 and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit. Current numbers look like BDU-21L-300; order the full number, including the suffix after the last dash. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67644718547261,"sku":"GD-HYGBDU-21L-306","price":887.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-HYGBDU-21L-306-fast.jpg?v=1791388436"},{"product_id":"hydro-gear-bdu-21l-310-hydrostatic-transmission","title":"Hydro-Gear BDU-21L-310 BDU Hydrostatic Transmission","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear BDU-21L-310\u003c\/strong\u003e is a genuine Hydro-Gear BDU hydrostatic transmission.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (BDU-21L-310). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003eHow to find your Hydro-Gear part number\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear\"\u003eShop all Hydro-Gear parts\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eBDU-21L-310\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eBDU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transmission\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse the fluid your equipment maker specifies; fluid, capacity and procedures are in the Hydro-Gear service and repair manual for your unit (free Hydro-Gear service and repair manuals: \u003ca href=\"https:\/\/www.hydro-gear.com\/service-repair-manuals\/\"\u003ehydro-gear.com\/service-repair-manuals\u003c\/a\u003e).\u003c\/li\u003e\n\u003cli\u003eAfter installing a replacement unit, purge air from the system following Hydro-Gear's procedure and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear BDU-21L-310 and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit. Current numbers look like BDU-21L-300; order the full number, including the suffix after the last dash. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67644718645565,"sku":"GD-HYGBDU-21L-310","price":887.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-HYGBDU-21L-310-fast.jpg?v=1791388438"},{"product_id":"hydro-gear-bdu-21l-311-transmission-hydrostatic-bdu","title":"Hydro-Gear BDU-21L-311 BDU Hydrostatic Transmission","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear BDU-21L-311\u003c\/strong\u003e is a genuine Hydro-Gear BDU hydrostatic transmission.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (BDU-21L-311). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003eHow to find your Hydro-Gear part number\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear\"\u003eShop all Hydro-Gear parts\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eBDU-21L-311\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eBDU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transmission\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse the fluid your equipment maker specifies; fluid, capacity and procedures are in the Hydro-Gear service and repair manual for your unit (free Hydro-Gear service and repair manuals: \u003ca href=\"https:\/\/www.hydro-gear.com\/service-repair-manuals\/\"\u003ehydro-gear.com\/service-repair-manuals\u003c\/a\u003e).\u003c\/li\u003e\n\u003cli\u003eAfter installing a replacement unit, purge air from the system following Hydro-Gear's procedure and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear BDU-21L-311 and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit. Current numbers look like BDU-21L-300; order the full number, including the suffix after the last dash. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67644718580029,"sku":"GD-HYGBDU-21L-311","price":2414.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-HYGBDU-21L-311-fast.jpg?v=1791388437"},{"product_id":"hydro-gear-t2-baed-2x3b-1nx1-t2","title":"Hydro-Gear T2-BAED-2X3B-1NX1 T2 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear T2-BAED-2X3B-1NX1\u003c\/strong\u003e is a genuine Hydro-Gear T2 hydrostatic transaxle. The T2 is a Hydro-Gear residential integrated hydrostatic transaxle with die-cast aluminum housings and a maintenance-free design, made for the lawn and garden industry.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (T2-BAED-2X3B-1NX1). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003eHow to find your Hydro-Gear part number\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear\"\u003eShop all Hydro-Gear parts\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eT2-BAED-2X3B-1NX1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eT2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement (series spec)\u003c\/th\u003e\n\u003ctd\u003e8 cc variable pump \/ 10.2 cc motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed (series spec)\u003c\/th\u003e\n\u003ctd\u003e1,800–3,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle (series spec)\u003c\/th\u003e\n\u003ctd\u003e3\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrake (series spec)\u003c\/th\u003e\n\u003ctd\u003eExternal disc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight on tires (series spec)\u003c\/th\u003e\n\u003ctd\u003e540 lb (most configurations)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight (series spec)\u003c\/th\u003e\n\u003ctd\u003e28 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil (factory filled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal (replaced only during internal repair)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHydro-Gear's manual says the T2 is factory filled and sealed and does not require oil maintenance; an oil change requires removing the transaxle from the vehicle.\u003c\/li\u003e\n\u003cli\u003eOil: 20W-50 engine oil, about 65–70 fl oz depending on the housing.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, engine at 3\/4 to full throttle, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear T2-BAED-2X3B-1NX1 and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like T2-AABC-2X1A-1CXX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67644718776637,"sku":"GD-HYGT2-BAED-2X3B-1NX1","price":399.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/GD-HYGT2-BAED-2X3B-1NX1-fast.jpg?v=1791388440"},{"product_id":"hydro-gear-zd-dubb-2ldc-3ppx-ezt-hydrostatic-transaxle","title":"Hydro-Gear ZD-DUBB-2LDC-3PPX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZD-DUBB-2LDC-3PPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZD-DUBB-2LDC-3PPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Ariens\/Gravely 05291900. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZD-DUBB-2LDC-3PPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump, 10 cc\/rev fixed motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3000 rpm max (no load), 1800 rpm min (loaded) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e7 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 56 fl oz \/ 1.75 qt (1650 ml) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter part number)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFactory filled and sealed: Hydro-Gear's manual says the EZT does not require routine oil maintenance. Add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eOil is 20W50 engine oil, about 56 fl oz (1.75 qt) per unit. Only units with E or F as the 3rd character of the model number have a drain plug; drain only when the oil is below 100 °F.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZD-DUBB-2LDC-3PPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear's service manual says the EZT is factory filled and sealed and does not require oil maintenance. Change the oil only if it is contaminated or degraded. Units with E or F as the 3rd character of the model number have a drain plug.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685725274429,"sku":"GD-ZD-DUBB-2LDC-3PPX","price":740.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT_2200-product-1.png?v=1791946195"},{"product_id":"hydro-gear-zc-dubb-3dkc-1ppx-ezt-hydrostatic-transaxle","title":"Hydro-Gear ZC-DUBB-3DKC-1PPX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZC-DUBB-3DKC-1PPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZC-DUBB-3DKC-1PPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBad Boy\u003c\/td\u003e\n\u003ctd\u003eMZ Magnum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBad Boy\u003c\/td\u003e\n\u003ctd\u003eMZ Rambler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zc-aubb-3dkb-1ppx-ezt-hydrostatic-transaxle\"\u003eZC-AUBB-3DKB-1PPX\u003c\/a\u003e on Bad Boy MZ Magnum and Bad Boy MZ Rambler — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZC-DUBB-3DKC-1PPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump, 10 cc\/rev fixed motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3000 rpm max (no load), 1800 rpm min (loaded) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e7 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 56 fl oz \/ 1.75 qt (1650 ml) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter part number)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFactory filled and sealed: Hydro-Gear's manual says the EZT does not require routine oil maintenance. Add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eOil is 20W50 engine oil, about 56 fl oz (1.75 qt) per unit. Only units with E or F as the 3rd character of the model number have a drain plug; drain only when the oil is below 100 °F.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZC-DUBB-3DKC-1PPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear's service manual says the EZT is factory filled and sealed and does not require oil maintenance. Change the oil only if it is contaminated or degraded. Units with E or F as the 3rd character of the model number have a drain plug.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685725405501,"sku":"GD-ZC-DUBB-3DKC-1PPX","price":740.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT_2200-product-1_7fce75f4-ad66-4884-ae7a-684b95fe237d.png?v=1791946196"},{"product_id":"hydro-gear-zu-gkeb-tllf-2jrx-zt-3400-hydrostatic-transaxle","title":"Hydro-Gear ZU-GKEB-TLLF-2JRX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZU-GKEB-TLLF-2JRX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear integrated transaxle \"designed for mid-size commercial vehicles.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZU-GKEB-TLLF-2JRX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGravely\u003c\/td\u003e\n\u003ctd\u003ePro-Turn 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zu-kkeb-tllg-3jrx-hydro-gear-part-zu-kkeb-tllg-3jrx\"\u003eZU-KKEB-TLLG-3JRX\u003c\/a\u003e on Gravely Pro-Turn 100 — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZU-GKEB-TLLF-2JRX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e10 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1600 lb (725 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.125 in (28.56 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e23.16:1 (ZU prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 71.9 fl oz (2126 ml), or 56.6 fl oz (1674 ml) with internal expansion tank (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114 (hand-tighten 3\/4 to 1 turn past gasket contact; 110–130 lb-in). First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eDrain only when the oil is below 100 °F; units with an internal expansion tank can otherwise overfill and damage the breather.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZU-GKEB-TLLF-2JRX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZX-GHEE-3K5A-13LX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685725471037,"sku":"GD-ZU-GKEB-TLLF-2JRX","price":1116.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3400-1.png?v=1791946197"},{"product_id":"hydro-gear-zs-kcee-sc2b-2xtx-zt-3400-hydrostatic-transaxle","title":"Hydro-Gear ZS-KCEE-SC2B-2XTX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZS-KCEE-SC2B-2XTX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear integrated transaxle \"designed for mid-size commercial vehicles.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZS-KCEE-SC2B-2XTX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBobcat\u003c\/td\u003e\n\u003ctd\u003eZS4000 48\"\/52\"\/61\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBobcat\u003c\/td\u003e\n\u003ctd\u003eZT3500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zs-gcee-sc2c-3xtx-zt-3400-hydrostatic-transaxle\"\u003eZS-GCEE-SC2C-3XTX\u003c\/a\u003e on Bobcat ZS4000 48\"\/52\"\/61\" and Bobcat ZT3500 — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZS-KCEE-SC2B-2XTX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e10 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1600 lb (725 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.125 in (28.56 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e21.04:1 (ZS prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 71.9 fl oz (2126 ml), or 56.6 fl oz (1674 ml) with internal expansion tank (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114 (hand-tighten 3\/4 to 1 turn past gasket contact; 110–130 lb-in). First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eDrain only when the oil is below 100 °F; units with an internal expansion tank can otherwise overfill and damage the breather.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZS-KCEE-SC2B-2XTX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZX-GHEE-3K5A-13LX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685734089021,"sku":"GD-ZS-KCEE-SC2B-2XTX","price":1135.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3400-1_0d8ccfa4-ef42-4ded-9169-98c1bf1ab39d.png?v=1791946294"},{"product_id":"hydro-gear-zu-gpee-snlb-21xx-zt-3400-hydrostatic-transaxle","title":"Hydro-Gear ZU-GPEE-SNLB-21XX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZU-GPEE-SNLB-21XX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear integrated transaxle \"designed for mid-size commercial vehicles.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZU-GPEE-SNLB-21XX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZU-GPEE-SNLB-21XX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e10 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1600 lb (725 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.125 in (28.56 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e23.16:1 (ZU prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 71.9 fl oz (2126 ml), or 56.6 fl oz (1674 ml) with internal expansion tank (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114 (hand-tighten 3\/4 to 1 turn past gasket contact; 110–130 lb-in). First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eDrain only when the oil is below 100 °F; units with an internal expansion tank can otherwise overfill and damage the breather.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZU-GPEE-SNLB-21XX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZX-GHEE-3K5A-13LX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685734515005,"sku":"GD-ZU-GPEE-SNLB-21XX","price":1111.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3400-1_bf5858b9-9a8f-4390-84d6-8a7a02b40e5e.png?v=1791946295"},{"product_id":"hydro-gear-zs-kcee-sc2b-2xrx-zt-3400-hydrostatic-transaxle","title":"Hydro-Gear ZS-KCEE-SC2B-2XRX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZS-KCEE-SC2B-2XRX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear integrated transaxle \"designed for mid-size commercial vehicles.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZS-KCEE-SC2B-2XRX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZS-KCEE-SC2B-2XRX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e10 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1600 lb (725 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.125 in (28.56 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e21.04:1 (ZS prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 71.9 fl oz (2126 ml), or 56.6 fl oz (1674 ml) with internal expansion tank (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114 (hand-tighten 3\/4 to 1 turn past gasket contact; 110–130 lb-in). First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eDrain only when the oil is below 100 °F; units with an internal expansion tank can otherwise overfill and damage the breather.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZS-KCEE-SC2B-2XRX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZX-GHEE-3K5A-13LX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685734547773,"sku":"GD-ZS-KCEE-SC2B-2XRX","price":1063.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3400-1_012495cd-1a7d-49ad-a4d0-2c424355131c.png?v=1791946295"},{"product_id":"hydro-gear-zu-kpee-snlc-31xx-zt-3400-hydrostatic-transaxle","title":"Hydro-Gear ZU-KPEE-SNLC-31XX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZU-KPEE-SNLC-31XX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear integrated transaxle \"designed for mid-size commercial vehicles.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZU-KPEE-SNLC-31XX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZU-KPEE-SNLC-31XX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e10 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1600 lb (725 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.125 in (28.56 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e23.16:1 (ZU prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 71.9 fl oz (2126 ml), or 56.6 fl oz (1674 ml) with internal expansion tank (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114 (hand-tighten 3\/4 to 1 turn past gasket contact; 110–130 lb-in). First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eDrain only when the oil is below 100 °F; units with an internal expansion tank can otherwise overfill and damage the breather.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZU-KPEE-SNLC-31XX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZX-GHEE-3K5A-13LX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685734842685,"sku":"GD-ZU-KPEE-SNLC-31XX","price":1120.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3400-1_47d06f49-b416-4488-a179-0058fec06290.png?v=1791946296"},{"product_id":"hydro-gear-zs-khef-9t7c-11rx-zt-3400-hydrostatic-transaxle","title":"Hydro-Gear ZS-KHEF-9T7C-11RX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZS-KHEF-9T7C-11RX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear integrated transaxle \"designed for mid-size commercial vehicles.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZS-KHEF-9T7C-11RX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Ferris 5103589, 5109247, 84006572; Simplicity 5103589, 5109247; Snapper 5103589, 5109247. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZS-KHEF-9T7C-11RX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e10 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1600 lb (725 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.125 in (28.56 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e21.04:1 (ZS prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 71.9 fl oz (2126 ml), or 56.6 fl oz (1674 ml) with internal expansion tank (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114 (hand-tighten 3\/4 to 1 turn past gasket contact; 110–130 lb-in). First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eDrain only when the oil is below 100 °F; units with an internal expansion tank can otherwise overfill and damage the breather.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZS-KHEF-9T7C-11RX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZX-GHEE-3K5A-13LX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685763350845,"sku":"GD-ZS-KHEF-9T7C-11RX","price":1196.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3400-1_5d1d33d0-051d-45a4-be47-1598856a87fe.png?v=1791946635"},{"product_id":"hydro-gear-zs-gcee-sc2c-3xtx-zt-3400-hydrostatic-transaxle","title":"Hydro-Gear ZS-GCEE-SC2C-3XTX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZS-GCEE-SC2C-3XTX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear integrated transaxle \"designed for mid-size commercial vehicles.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZS-GCEE-SC2C-3XTX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBobcat\u003c\/td\u003e\n\u003ctd\u003eZS4000 48\"\/52\"\/61\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBobcat\u003c\/td\u003e\n\u003ctd\u003eZT3500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zs-kcee-sc2b-2xtx-zt-3400-hydrostatic-transaxle\"\u003eZS-KCEE-SC2B-2XTX\u003c\/a\u003e on Bobcat ZS4000 48\"\/52\"\/61\" and Bobcat ZT3500 — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZS-GCEE-SC2C-3XTX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e10 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1600 lb (725 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.125 in (28.56 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e21.04:1 (ZS prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 71.9 fl oz (2126 ml), or 56.6 fl oz (1674 ml) with internal expansion tank (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114 (hand-tighten 3\/4 to 1 turn past gasket contact; 110–130 lb-in). First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eDrain only when the oil is below 100 °F; units with an internal expansion tank can otherwise overfill and damage the breather.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZS-GCEE-SC2C-3XTX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZX-GHEE-3K5A-13LX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685763383613,"sku":"GD-ZS-GCEE-SC2C-3XTX","price":1083.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3400-1_226a9def-4483-492f-9e65-b2f4422a0ce1.png?v=1791946636"},{"product_id":"hydro-gear-zs-gcee-sc2c-3xrx-zt-3400-hydrostatic-transaxle","title":"Hydro-Gear ZS-GCEE-SC2C-3XRX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZS-GCEE-SC2C-3XRX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear integrated transaxle \"designed for mid-size commercial vehicles.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZS-GCEE-SC2C-3XRX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZS-GCEE-SC2C-3XRX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e10 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1600 lb (725 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.125 in (28.56 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e21.04:1 (ZS prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 71.9 fl oz (2126 ml), or 56.6 fl oz (1674 ml) with internal expansion tank (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114 (hand-tighten 3\/4 to 1 turn past gasket contact; 110–130 lb-in). First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eDrain only when the oil is below 100 °F; units with an internal expansion tank can otherwise overfill and damage the breather.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZS-GCEE-SC2C-3XRX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZX-GHEE-3K5A-13LX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685772230973,"sku":"GD-ZS-GCEE-SC2C-3XRX","price":1106.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3400-1_5bf63d72-d99c-4a24-ba49-2434fa18b8ac.png?v=1791946710"},{"product_id":"hydro-gear-zd-dmbb-7mdc-24pc-ezt-hydrostatic-transaxle-lh","title":"Hydro-Gear ZD-DMBB-7MDC-24PC EZT Hydrostatic Transaxle (LH)","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZD-DMBB-7MDC-24PC\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle, left-hand (LH). The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZD-DMBB-7MDC-24PC). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZD-DMBB-7MDC-24PC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSide\u003c\/th\u003e\n\u003ctd\u003eLeft-hand (LH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump, 10 cc\/rev fixed motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3000 rpm max (no load), 1800 rpm min (loaded) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e7 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 56 fl oz \/ 1.75 qt (1650 ml) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter part number)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFactory filled and sealed: Hydro-Gear's manual says the EZT does not require routine oil maintenance. Add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eOil is 20W50 engine oil, about 56 fl oz (1.75 qt) per unit. Only units with E or F as the 3rd character of the model number have a drain plug; drain only when the oil is below 100 °F.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZD-DMBB-7MDC-24PC and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear's service manual says the EZT is factory filled and sealed and does not require oil maintenance. Change the oil only if it is contaminated or degraded. Units with E or F as the 3rd character of the model number have a drain plug.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685772263741,"sku":"GD-ZD-DMBB-7MDC-24PC","price":702.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT_2200-product-1_509e0425-3961-465b-9885-89d3c61c0093.png?v=1791946710"},{"product_id":"hydro-gear-zs-ghef-9t7b-11rx-zt-3400-hydrostatic-transaxle","title":"Hydro-Gear ZS-GHEF-9T7B-11RX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZS-GHEF-9T7B-11RX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear integrated transaxle \"designed for mid-size commercial vehicles.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZS-GHEF-9T7B-11RX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Ferris 5103590, 5109261; Simplicity 5103590, 5109261; Snapper 5103590, 5109261. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZS-GHEF-9T7B-11RX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e10 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1600 lb (725 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.125 in (28.56 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e21.04:1 (ZS prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 71.9 fl oz (2126 ml), or 56.6 fl oz (1674 ml) with internal expansion tank (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114 (hand-tighten 3\/4 to 1 turn past gasket contact; 110–130 lb-in). First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eDrain only when the oil is below 100 °F; units with an internal expansion tank can otherwise overfill and damage the breather.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZS-GHEF-9T7B-11RX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZX-GHEE-3K5A-13LX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685772329277,"sku":"GD-ZS-GHEF-9T7B-11RX","price":1230.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3400-1_595c9c7b-1c18-40e7-8e5f-109154e840dd.png?v=1791946712"},{"product_id":"hydro-gear-zu-gpeb-sclb-21lx-zt-3400-hydrostatic-transaxle","title":"Hydro-Gear ZU-GPEB-SCLB-21LX ZT-3400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZU-GPEB-SCLB-21LX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3400 hydrostatic transaxle. The ZT-3400 is a Hydro-Gear integrated transaxle \"designed for mid-size commercial vehicles.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZU-GPEB-SCLB-21LX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3400-guide\"\u003eHydro-Gear ZT-3400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3400\"\u003eShop all ZT-3400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExmark\u003c\/td\u003e\n\u003ctd\u003eRadius X-Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToro\u003c\/td\u003e\n\u003ctd\u003eZ Master 2000 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zu-kpeb-sclc-21lx-hydro-gear-part-zu-kpeb-sclc-21lx\"\u003eZU-KPEB-SCLC-21LX\u003c\/a\u003e on Exmark Radius X-Series and Toro Z Master 2000 Series — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZU-GPEB-SCLB-21LX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e500 lb-ft (677 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e10 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1600 lb (725 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.125 in (28.56 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e34.5 lb (15.6 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e23.16:1 (ZU prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 71.9 fl oz (2126 ml), or 56.6 fl oz (1674 ml) with internal expansion tank (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114 (hand-tighten 3\/4 to 1 turn past gasket contact; 110–130 lb-in). First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eDrain only when the oil is below 100 °F; units with an internal expansion tank can otherwise overfill and damage the breather.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZU-GPEB-SCLB-21LX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZX-GHEE-3K5A-13LX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685778915645,"sku":"GD-ZU-GPEB-SCLB-21LX","price":1111.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3400-1_8454e383-2d7b-4b93-a1e6-203f969499ec.png?v=1791946889"},{"product_id":"hydro-gear-zl-gpee-snlb-2gxx-zt-2800-3100-3200-hydrostatic-transaxle","title":"Hydro-Gear ZL-GPEE-SNLB-2GXX ZT-3100 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZL-GPEE-SNLB-2GXX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3100 hydrostatic transaxle. The ZT-3100 is Hydro-Gear's entry-level commercial-grade integrated transaxle.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZL-GPEE-SNLB-2GXX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Husqvarna 577227701. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3100-guide\"\u003eHydro-Gear ZT-3100 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3100-zt-3200\"\u003eShop all ZT-3100 \u0026amp; ZT-3200 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZL-GPEE-SNLB-2GXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114. First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eHydro-Gear covers the ZT-2800, ZT-3100 and ZT-3200 in one service manual (BLN-52441).\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZL-GPEE-SNLB-2GXX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZH-JPBB-SF7B-2XLX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685778948413,"sku":"GD-ZL-GPEE-SNLB-2GXX","price":1015.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-2800-1-1.png?v=1791946890"},{"product_id":"hydro-gear-zl-gpee-sc5a-1mxx-zt-3100-hydrostatic-transaxle","title":"Hydro-Gear ZL-GPEE-SC5A-1MXX ZT-3100 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZL-GPEE-SC5A-1MXX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3100 hydrostatic transaxle. The ZT-3100 is Hydro-Gear's entry-level commercial-grade integrated transaxle.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZL-GPEE-SC5A-1MXX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3100-guide\"\u003eHydro-Gear ZT-3100 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3100-zt-3200\"\u003eShop all ZT-3100 \u0026amp; ZT-3200 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZL-GPEE-SC5A-1MXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e10 cc pump, 16 cc motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e350 lb-ft (474 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e9 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1200 lb (544 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.0 in; tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e32.5 lb (14.7 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e24.74:1 (ZL prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114. First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eCapacity is about 2 qt per transaxle (56.6–71.9 fl oz depending on configuration), excluding the expansion tank and hose.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZL-GPEE-SC5A-1MXX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZH-JPBB-SF7B-2XLX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685779013949,"sku":"GD-ZL-GPEE-SC5A-1MXX","price":1139.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3100-1.png?v=1791946891"},{"product_id":"hydro-gear-zh-mcbb-semc-3pxx-zt-2800-hydrostatic-transaxle","title":"Hydro-Gear ZH-MCBB-SEMC-3PXX ZT-2800 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZH-MCBB-SEMC-3PXX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-2800 hydrostatic transaxle. The ZT-2800 is Hydro-Gear's estate-grade transaxle — \"our most rugged residential transaxle for machines up to 1000 lbs.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZH-MCBB-SEMC-3PXX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Excel\/Hustler 604708. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-2800-guide\"\u003eHydro-Gear ZT-2800 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-2800\"\u003eShop all ZT-2800 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBig Dog\u003c\/td\u003e\n\u003ctd\u003eAlpha MP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBig Dog\u003c\/td\u003e\n\u003ctd\u003eBlackjack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHustler\u003c\/td\u003e\n\u003ctd\u003eFlip-Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zh-jcbb-semb-2pxx-zt-2800-hydrostatic-transaxle\"\u003eZH-JCBB-SEMB-2PXX\u003c\/a\u003e on Big Dog Alpha MP, Big Dog Blackjack and Hustler Flip-Up — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZH-MCBB-SEMC-3PXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-2800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3000 rpm max (non-charged) \/ 3600 rpm (charged), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e300 lb-ft (406 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e8 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1000 lb (453 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.0 in (25.4 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e32 lb (14.5 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e20.69:1 (ZH prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114. First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eCapacity is about 2 qt per transaxle (56.6–71.9 fl oz depending on configuration), excluding the expansion tank and hose.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZH-MCBB-SEMC-3PXX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZH-JPBB-SF7B-2XLX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685779636541,"sku":"GD-ZH-MCBB-SEMC-3PXX","price":835.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-2800-1-1_ec5b2d09-4f85-4f5f-b7e4-5f711f9192e9.png?v=1791946959"},{"product_id":"hydro-gear-zc-dubb-3dra-2ppx-ezt-hydrostatic-transaxle","title":"Hydro-Gear ZC-DUBB-3DRA-2PPX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZC-DUBB-3DRA-2PPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZC-DUBB-3DRA-2PPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Toro 119-3351. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZC-DUBB-3DRA-2PPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump, 10 cc\/rev fixed motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3000 rpm max (no load), 1800 rpm min (loaded) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e7 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 56 fl oz \/ 1.75 qt (1650 ml) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter part number)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFactory filled and sealed: Hydro-Gear's manual says the EZT does not require routine oil maintenance. Add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eOil is 20W50 engine oil, about 56 fl oz (1.75 qt) per unit. Only units with E or F as the 3rd character of the model number have a drain plug; drain only when the oil is below 100 °F.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZC-DUBB-3DRA-2PPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear's service manual says the EZT is factory filled and sealed and does not require oil maintenance. Change the oil only if it is contaminated or degraded. Units with E or F as the 3rd character of the model number have a drain plug.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685788975421,"sku":"GD-ZC-DUBB-3DRA-2PPX","price":730.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT_2200-product-1_541332ae-371b-470f-90bd-b6d0d8349a51.png?v=1791947153"},{"product_id":"hydro-gear-1710-1069l-zt-4400-hydrostatic-transaxle","title":"Hydro-Gear 1710-1069L ZT-4400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear 1710-1069L\u003c\/strong\u003e is a genuine Hydro-Gear ZT-4400 hydrostatic transaxle. The ZT-4400 is a Hydro-Gear commercial integrated transaxle \"rated for machines up to 1800 lbs.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (1710-1069L). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-4400-zt-5400-guide\"\u003eHydro-Gear ZT-4400 \u0026amp; ZT-5400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-4400-zt-5400\"\u003eShop all ZT-4400 \u0026amp; ZT-5400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBobcat\u003c\/td\u003e\n\u003ctd\u003eZT6000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBobcat\u003c\/td\u003e\n\u003ctd\u003eZT6100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-1710-1069r-zt-4400-hydrostatic-transaxle\"\u003e1710-1069R\u003c\/a\u003e on Bobcat ZT6000 and Bobcat ZT6100 — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003e1710-1069L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-4400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e12 cc\/rev pump, 16 cc motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (loaded) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e575 lb-ft (780 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e12 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1800 lb (816 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.375 in (35 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e55 lb (25 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eParking brake\u003c\/th\u003e\n\u003ctd\u003eInternal disc (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 117–120 fl oz (3450–3550 ml) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear 72537 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil (biodegradable oils are not approved) and Hydro-Gear filter 72537. First change at 100 hours, then every 400 hours or yearly, whichever comes first.\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's oil service kit 72881 covers the ZT-4400 and ZT-5400.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear 1710-1069L and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like 1710-1066R. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685789335869,"sku":"GD-1710-1069L","price":1794.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-4400-1.png?v=1791947222"},{"product_id":"hydro-gear-zl-kcef-slkg-1nxx-zt-3100-hydrostatic-transaxle","title":"Hydro-Gear ZL-KCEF-SLKG-1NXX ZT-3100 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZL-KCEF-SLKG-1NXX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-3100 hydrostatic transaxle. The ZT-3100 is Hydro-Gear's entry-level commercial-grade integrated transaxle.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZL-KCEF-SLKG-1NXX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Scag 484449. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-3100-guide\"\u003eHydro-Gear ZT-3100 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-3100-zt-3200\"\u003eShop all ZT-3100 \u0026amp; ZT-3200 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZL-KCEF-SLKG-1NXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-3100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e10 cc pump, 16 cc motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max (no load), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e350 lb-ft (474 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e9 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1200 lb (544 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.0 in; tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e32.5 lb (14.7 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e24.74:1 (ZL prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114. First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eCapacity is about 2 qt per transaxle (56.6–71.9 fl oz depending on configuration), excluding the expansion tank and hose.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48).\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZL-KCEF-SLKG-1NXX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZH-JPBB-SF7B-2XLX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685789368637,"sku":"GD-ZL-KCEF-SLKG-1NXX","price":1034.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3100-1_cb4e3ebf-e1f0-41f5-a4ef-ae49e4bc14bd.png?v=1791947222"},{"product_id":"hydro-gear-zh-gmcc-slub-1mxx-zt-2800-hydrostatic-transaxle","title":"Hydro-Gear ZH-GMCC-SLUB-1MXX ZT-2800 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZH-GMCC-SLUB-1MXX\u003c\/strong\u003e is a genuine Hydro-Gear ZT-2800 hydrostatic transaxle. The ZT-2800 is Hydro-Gear's estate-grade transaxle — \"our most rugged residential transaxle for machines up to 1000 lbs.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZH-GMCC-SLUB-1MXX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Scag 484576. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-2800-guide\"\u003eHydro-Gear ZT-2800 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-2800\"\u003eShop all ZT-2800 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZH-GMCC-SLUB-1MXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-2800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev pump, 16 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3000 rpm max (non-charged) \/ 3600 rpm (charged), 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e300 lb-ft (406 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e8 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e1000 lb (453 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.0 in (25.4 mm); tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e32 lb (14.5 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e20.69:1 (ZH prefix, series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eExternal spin-on, Hydro-Gear 52114 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W50 engine oil and Hydro-Gear filter 52114. First change at 75–100 hours, then every 400 hours.\u003c\/li\u003e\n\u003cli\u003eCapacity is about 2 qt per transaxle (56.6–71.9 fl oz depending on configuration), excluding the expansion tank and hose.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZH-GMCC-SLUB-1MXX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZH-JPBB-SF7B-2XLX. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685789434173,"sku":"GD-ZH-GMCC-SLUB-1MXX","price":926.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-2800-1-1_16dc87c1-d9f9-4d0b-bf02-4a4a45d3e168.png?v=1791947224"},{"product_id":"hydro-gear-1015-1003l-zt-5400-hydrostatic-transaxle","title":"Hydro-Gear 1015-1003L ZT-5400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear 1015-1003L\u003c\/strong\u003e is a genuine Hydro-Gear ZT-5400 Powertrain hydrostatic transaxle. The ZT-5400 Powertrain is Hydro-Gear's largest transaxle — it \"handles the biggest \u0026amp; toughest jobs.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (1015-1003L). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Scag 483797. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-4400-zt-5400-guide\"\u003eHydro-Gear ZT-4400 \u0026amp; ZT-5400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-4400-zt-5400\"\u003eShop all ZT-4400 \u0026amp; ZT-5400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScag\u003c\/td\u003e\n\u003ctd\u003eCheetah II\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-1015-1003r-zt-5400-hydrostatic-transaxle\"\u003e1015-1003R\u003c\/a\u003e on Scag Cheetah II — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003e1015-1003L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-5400 Powertrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e16 cc\/rev pump, 21.8 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e18.6:1 low speed, 12.9:1 high speed (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max, 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e700 lb-ft (949 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e18 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e2200 lb (997 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.375 in; tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e57 lb (25.85 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eParking brake\u003c\/th\u003e\n\u003ctd\u003eInternal disc (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil; 164.8–166.5 fl oz (4875–4925 ml) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear 71943 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W-50 engine oil (biodegradable oils are not approved) and Hydro-Gear filter 71943. First change at 100 hours, then every 400 hours or yearly, whichever comes first.\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's oil service kit 72881 covers the ZT-4400 and ZT-5400.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear 1015-1003L and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like 1015-1001R. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685822890301,"sku":"GD-1015-1003L","price":1804.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-5400-1.png?v=1791947414"},{"product_id":"hydro-gear-zc-aubb-3dkb-1ppx-ezt-hydrostatic-transaxle","title":"Hydro-Gear ZC-AUBB-3DKB-1PPX EZT Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZC-AUBB-3DKB-1PPX\u003c\/strong\u003e is a genuine Hydro-Gear EZT (ZT-2200) hydrostatic transaxle. The EZT (ZT-2200) is Hydro-Gear's most popular residential-grade integrated transaxle for zero-turn mowers.\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (ZC-AUBB-3DKB-1PPX). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-ezt-zt-2200-guide\"\u003eHydro-Gear EZT (ZT-2200) guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-ezt\"\u003eShop all EZT transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBad Boy\u003c\/td\u003e\n\u003ctd\u003eMZ Magnum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBad Boy\u003c\/td\u003e\n\u003ctd\u003eMZ Rambler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-zc-dubb-3dkc-1ppx-ezt-hydrostatic-transaxle\"\u003eZC-DUBB-3DKC-1PPX\u003c\/a\u003e on Bad Boy MZ Magnum and Bad Boy MZ Rambler — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003eZC-AUBB-3DKB-1PPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eEZT (ZT-2200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e10 cc\/rev variable pump, 10 cc\/rev fixed motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3000 rpm max (no load), 1800 rpm min (loaded) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e215 lb-ft (291 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e7 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e900 lb (406 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.0 in, DD or 4-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e29 lb (13 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W50 engine oil; 56 fl oz \/ 1.75 qt (1650 ml) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eInternal mesh filter (no service filter part number)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFactory filled and sealed: Hydro-Gear's manual says the EZT does not require routine oil maintenance. Add or change oil only for contamination or degradation.\u003c\/li\u003e\n\u003cli\u003eOil is 20W50 engine oil, about 56 fl oz (1.75 qt) per unit. Only units with E or F as the 3rd character of the model number have a drain plug; drain only when the oil is below 100 °F.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear ZC-AUBB-3DKB-1PPX and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZC-DUBB-4MDC-3PPA. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eDoes the EZT need oil changes?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear's service manual says the EZT is factory filled and sealed and does not require oil maintenance. Change the oil only if it is contaminated or degraded. Units with E or F as the 3rd character of the model number have a drain plug.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685823545661,"sku":"GD-ZC-AUBB-3DKB-1PPX","price":736.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT_2200-product-1_745ff469-7f8a-4354-978e-035f36f3f73f.png?v=1791947415"},{"product_id":"hydro-gear-1015-1057r-zt-5400-hydrostatic-transaxle","title":"Hydro-Gear 1015-1057R ZT-5400 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear 1015-1057R\u003c\/strong\u003e is a genuine Hydro-Gear ZT-5400 Powertrain hydrostatic transaxle. The ZT-5400 Powertrain is Hydro-Gear's largest transaxle — it \"handles the biggest \u0026amp; toughest jobs.\"\u003c\/p\u003e\u003cp\u003eOrder by the full model number on the Hydro-Gear label (1015-1057R). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character; zero-turns use a left and a right unit — check which side you need.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplaces \/ cross-reference:\u003c\/strong\u003e Ferris 5103963; Snapper 5103963, 5110534; Stihl WB05 640 0110. Confirm against your mower's parts list.\u003c\/p\u003e\u003cp class=\"hg-guide-links\"\u003e\u003cstrong\u003eMore on this series:\u003c\/strong\u003e \u003ca href=\"\/pages\/hydro-gear-zt-4400-zt-5400-guide\"\u003eHydro-Gear ZT-4400 \u0026amp; ZT-5400 guide\u003c\/a\u003e · \u003ca href=\"\/collections\/hydro-gear-zt-4400-zt-5400\"\u003eShop all ZT-4400 \u0026amp; ZT-5400 transaxles\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFits these mowers\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFerris\u003c\/td\u003e\n\u003ctd\u003eISX 3300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSimplicity\u003c\/td\u003e\n\u003ctd\u003eCobalt LE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eUsed as a pair with \u003ca href=\"\/products\/hydro-gear-1015-1057l-zt-5400-hydrostatic-transaxle\"\u003e1015-1057L\u003c\/a\u003e on Ferris ISX 3300 and Simplicity Cobalt LE — check your label for which side you have.\u003c\/p\u003e\u003cp\u003eFitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"tl-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear (genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ part number\u003c\/th\u003e\n\u003ctd\u003e1015-1057R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eZT-5400 Powertrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydrostatic Transaxle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump \/ motor displacement\u003c\/th\u003e\n\u003ctd\u003e16 cc\/rev pump, 21.8 cc\/rev motor (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReduction\u003c\/th\u003e\n\u003ctd\u003e18.6:1 low speed, 12.9:1 high speed (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput speed\u003c\/th\u003e\n\u003ctd\u003e3600 rpm max, 1800 rpm min (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput torque (up to)\u003c\/th\u003e\n\u003ctd\u003e700 lb-ft (949 Nm) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed (up to)\u003c\/th\u003e\n\u003ctd\u003e18 mph (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax machine weight\u003c\/th\u003e\n\u003ctd\u003e2200 lb (997 kg) gross vehicle weight (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003e1.375 in; tapered, 4-bolt or 5-bolt flange (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e57 lb (25.85 kg) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eParking brake\u003c\/th\u003e\n\u003ctd\u003eInternal disc (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid\u003c\/th\u003e\n\u003ctd\u003e20W-50 engine oil; 164.8–166.5 fl oz (4875–4925 ml) (series spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003ctd\u003eHydro-Gear 71943 (25 micron nominal \/ 40 absolute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eService notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil and filter: 20W-50 engine oil (biodegradable oils are not approved) and Hydro-Gear filter 71943. First change at 100 hours, then every 400 hours or yearly, whichever comes first.\u003c\/li\u003e\n\u003cli\u003eHydro-Gear's oil service kit 72881 covers the ZT-4400 and ZT-5400.\u003c\/li\u003e\n\u003cli\u003eAfter installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward\/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and price\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree shipping (lower 48). Ships from distributor stock.\u003c\/li\u003e\n\u003cli\u003eLow Price Guarantee: find a lower advertised price on a genuine Hydro-Gear 1015-1057R and we'll beat it by 5% (before purchase). \u003ca href=\"\/pages\/low-price-guarantee\"\u003eDetails\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eWhere do I find my Hydro-Gear model number?\u003c\/h3\u003e\n\u003cp\u003eOn the Hydro-Gear label on the unit (on the transaxle). Current numbers look like 1015-1001R. See \u003ca href=\"\/pages\/hydro-gear-part-number-guide\"\u003ehow to find your Hydro-Gear part number\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"tl-faq\"\u003e\n\u003ch3\u003eCan I use a different model that looks the same?\u003c\/h3\u003e\n\u003cp\u003eHydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Order the exact number on your label.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hydro-Gear","offers":[{"title":"Default Title","offer_id":67685823578429,"sku":"GD-1015-1057R","price":1699.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-5400-1_06307909-96b7-4329-9fbf-5b2109060213.png?v=1791947416"}],"url":"https:\/\/rfqqq.com\/collections\/hydro-gear-transaxles.oembed","provider":"RFQQQ","version":"1.0","type":"link"}