Must Have Hustler Raptor Right Side Transmission (604127)

Model Compatibility

Genuine Hustler Turf Equipment OEM Component | Part Number: 604127

This is an authentic, factory-direct Hustler replacement Hydro-Gear EZT integrated hydrostatic transaxle. This assembly is designed to restore full hydraulic drive power, control, and braking performance to your zero-turn mower.

CRITICAL DIRECTIONAL VERIFICATION:

This transmission is engineered strictly for the **RIGHT-HAND side** of the mower, determined precisely from the **operator’s seated position**. If your machine is tracking poorly or losing power on the left-hand side, this component will not resolve the issue.

Product Compatibility & Model Verification

This hydrostatic transmission fits all original Raptor and Raptor Limited series zero-turn models listed below. Please locate the 6-digit frame model tag on the chassis cross-member near the seat to confirm exact fitment before finalizing your purchase.

Hustler Raptor Series

36″ Deck Models

933382 (Kawasaki FR541 – 15HP), 935734, 935767US, 938159, 938563, 939389 (Kawasaki FR541)

42″ Deck Models

931741 (Kawasaki FR651 – 21.5HP), 933069 (Kawasaki FR651 – 21.5HP), 933937 (Kohler 7000 w/ Smart Choke – 22HP), 931998US, 934505US, 934786, 935742, 937748, 937847, 938167, 938571, 938589 (Kawasaki FR600), 939215 (Kawasaki FR600)

52″ Deck Models

931881, 931899 (Kawasaki FR691 – 23HP), 933077 (Kawasaki FR691 – 23HP), 934414 (Kohler 7000 w/ Smart Choke – 24HP), 932004US, 933408US, 934513US, 934794, 935759, 935817, 937755, 937763, 937813 (Briggs & Stratton Pro), 937854, 938597, 938605, 939165 (Briggs & Stratton Pro), 939223 (Kawasaki FR691)

Hustler Raptor Limited Series

42″ Deck Models

938977 (Kawasaki FR651)

52″ Deck Models

934802, 934893 (Kohler 7000 w/ Smart Choke – 24HP), 936492, 936500, 937771, 937862, 938613

604127 HTRTRS042KAWFR651VA HTRTRS052KOHKT735A HTRTRS052KAWFR691VA HTRTRS052BASPROM44U7M HTRTRS042KAWFR651VM HTRTRS052KAWFR691VM HTRTRS036KOHKT610A HTRTRS042KOHKT725A HTRTRL036KOHKT610A HTRTRL042KOHKT725A HTRTRL042KAWFR600VA HTRTRL052KOHKT735A HTRTRL052KAWFR691VA HTRTRL052BASPROM44U7M HTRTRL042KAWFR600VM HTRTRL052KAWFR691VM HTRTRL036KAWFR541VA HTRTLS052KOHKT735M HTRTLS052KAWFR691VA HTRTLS052KAWFR691VM HTRTLS052KAWFR691VA HTRTLS052KAWFR691VM HTRTLL052KAWFR691VA HTRTLL042KAWFR651VA HydroGear Hydro-Gear Hydro Transaxle

Weight and Dimensions