Hydro-Gear ZT-3200 — ZJ-GYEF-9T7B-1GRX (representative image) Click to zoom

Hydro-Gear ZJ-GYEF-9T7B-1GRX ZT-3200 Hydrostatic Transaxle

MPN ZJ-GYEF-9T7B-1GRX

Replaces Ferris 5106643

Free shippingIn stockHydrostatic Transaxle

Overview

Hydro-Gear ZJ-GYEF-9T7B-1GRX is a genuine Hydro-Gear ZT-3200 hydrostatic transaxle. The ZT-3200 is Hydro-Gear's commercial-grade transaxle "for lighter weight applications."

Order by the full model number on the Hydro-Gear label (ZJ-GYEF-9T7B-1GRX). 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.

Replaces / cross-reference: Ferris 5106643. Confirm against your mower's parts list.

More on this series: Hydro-Gear ZT-3100 guide · Shop all ZT-3100 & ZT-3200 transaxles

Fits these mowers

Brand Model
Ferris IS 700
Snapper/Snapper Pro S120

Used as a pair with ZJ-KYEF-9T7C-1GRX on Ferris IS 700 and Snapper/Snapper Pro S120 — check your label for which side you have.

Fitment from Hydro-Gear's cross-reference. Always confirm the number on your unit's label before ordering.

Specifications

Brand Hydro-Gear (genuine)
Model / part number ZJ-GYEF-9T7B-1GRX
Series ZT-3200
Type Hydrostatic Transaxle
Pump / motor displacement 10 cc pump, 16 cc motor (series spec)
Input speed 3600 rpm max, 1800 rpm min (series spec)
Output torque (up to) 470 lb-ft (637 Nm) (series spec)
Speed (up to) 9 mph (series spec)
Max machine weight 1500 lb (680 kg) gross vehicle weight (series spec)
Axle 1.125 in (1-1/8 in) (series spec)
Unit weight 33 lb (15 kg) (series spec)
Reduction 20.69:1 (ZJ prefix, series spec)
Fluid 20W50 engine oil (series spec)
Filter External spin-on, Hydro-Gear 52114

Service notes

  • Oil and filter: 20W50 engine oil and Hydro-Gear filter 52114. First change at 75–100 hours, then every 400 hours.
  • Hydro-Gear covers the ZT-3200 in the same service manual as the ZT-2800 and ZT-3100 (BLN-52441).
  • After 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.

Shipping

  • Free shipping (lower 48).

Frequently asked questions

Where do I find my Hydro-Gear model number?

On the Hydro-Gear label on the unit (on the transaxle). Current numbers look like ZH-JPBB-SF7B-2XLX. See how to find your Hydro-Gear part number.

Can I use a different model that looks the same?

Hydro-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.