Description
Hustler OEM 603734 Engine / Hydraulic Drive Pulley
The genuine Hustler OEM 603734 pulley is used in select Hustler Super Z drive systems to help transfer engine power through the hydraulic drive belt. This pulley is commonly used when the original pulley is worn, grooved, damaged, or causing repeated belt wear.
Engine pulleys can vary by model, engine package, clutch setup, shaft size, and belt layout. Do not order by appearance alone.
Not sure? Contact us with your Hustler model and serial number and we’ll help verify fitment.
- OEM Part Number: 603734
- Part Name: Engine Pulley / Hydraulic Drive Pulley
- Size: 6.67" OD x 1.125" shaft/bore
- Application: Engine/hydraulic drive belt system
- Genuine Hustler OEM: Correct fit and function for approved applications
Fits These Hustler Models
Verify your model and serial number before ordering.
932012, 932020, 932038, 932046, 932053, 932061, 932129, 932137, 932970, 932988, 933457, 933929US, 934216, 934224, 934232, 934240, 934265, 934273, 934281, 934984US, 934992, 935007, 935015US, 935023, 935031, 935049, 935056US, 935064, 936872, 936880, 936898US, 936914, 936922, 936930, 936948US, 936955, 936989, 937714, 937722, 937730, 938985, 938993, 940031, 940049, 941138, 941146, 941153, 941161, 941179, 941187, 941195, 941203, 941377, 941385, 942342, 942763, 942771, 942821, 942854, 942862, 942870, 942888, 942896, 942912, 942920, 943852, 943860, 943878, 943886, 943894, 943910, 943928, 943936, 943944
Related Parts
- 036236 – Clutch anchor bolt
- 768523 – Clutch anchor washer
- 113347 – Clutch anchor
- 034272 – Clutch anchor lock nut
- 606936P – PTO clutch
- 791251P – Clutch harness wire pigtail
- 602680 – PTO clutch washer
- 601834 – PTO bolt with Loctite, select models only
- 785048 – PTO bolt with Loctite, select models only
Installation Tips
- Disconnect the spark plug wire and battery before servicing the drive system.
- The PTO clutch must be removed to replace the engine pulley.
- Inspect the PTO clutch, clutch anchor, clutch hardware, and wiring pigtail while the pulley is removed.
- Inspect the hydraulic drive belt for glazing, cracking, sidewall wear, or damage caused by the old pulley.
- After installation, make sure the hydraulic drive belt is routed correctly and adjusted properly before operating the mower.
- Confirm pulley alignment and belt tracking before returning the mower to service.
Not sure if this is the right part?
Contact us with your Hustler model and serial number and we’ll verify the correct part before you order.