{"product_id":"hydro-gear-zj-hprp-sa7b-19xx-zt-3100-hydrostatic-transaxle","title":"Hydro-Gear ZJ-HPRP-SA7B-19XX ZT-3100 Hydrostatic Transaxle","description":"\u003cp\u003e\u003cstrong\u003eHydro-Gear ZJ-HPRP-SA7B-19XX\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 (ZJ-HPRP-SA7B-19XX). 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\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\u003eFB 3000 Hurricane\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-zj-lprp-sa7c-19xx-zt-3100-hydrostatic-transaxle\"\u003eZJ-LPRP-SA7C-19XX\u003c\/a\u003e on Ferris FB 3000 Hurricane — 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\u003eZJ-HPRP-SA7B-19XX\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\u003e20.69:1 (ZJ 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 ZJ-HPRP-SA7B-19XX 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":67686097617213,"sku":"GD-ZJ-HPRP-SA7B-19XX","price":1183.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/8951\/2509\/files\/ZT-3100-1_d423eedb-cfcf-4f92-8b2b-d03c116da85b.png?v=1791949220","url":"https:\/\/rfqqq.com\/products\/hydro-gear-zj-hprp-sa7b-19xx-zt-3100-hydrostatic-transaxle","provider":"RFQQQ","version":"1.0","type":"link"}