Hustler FasTrak Hydraulic Fan/Pulley Kit (601941)

This genuine factory service kit is designed to replace worn cooling fans and drive pulleys on select Hustler zero-turn riding mowers equipped with Hydro-Gear hydrostatic transmissions. As a complete dual-side refreshing kit, it supplies the original equipment manufacturer (OEM) components needed to sustain essential thermal regulation and power transfer across both the left-hand and right-hand hydraulic drive assemblies.

• Genuine Hustler Turf Equipment Hydraulic Fan & Pulley Kit (601941)
• Dual-Brand Authentication: Produced directly by Hydro-Gear under component part number 72124. Individual package components may bear both Hustler and Hydro-Gear manufacturing marks.
• Comprehensive Service Configuration: Each package comes fully equipped with the factory cooling fan, drive pulley disc, structural pulley hub, and corresponding 1/2-20 installation nuts to service right or left hydrostatic drivetrains.
• Maintenance Advisory: When replacing damaged transmission fans, always inspect the tension level of your idler pump belt, check the operation of the alignment idler pulley, and verify the structural loading of your tensioner spring. Faulty belt path tracking can lead to premature blade clipping or immediate fan fracture.

Compatibility Highlights

• Primary Brand: Hustler Turf Equipment
• OEM Manufacturer: Hydro-Gear (Part Number: 72124)
• Service Scope: Fits Left & Right Hydraulic Transmissions
• Included Factory Hardware:
  • 1x 7.0" Cooling Fan (53821)
  • 1x Pulley Disc (53804)
  • 1x Pulley Hub (53812)
  • 1x 1/2-20 H-Type Lock Nut (44133)

Detailed Model List

Fitment varies depending on production series tracking codes and deck layouts. To ensure accurate part assignment, match the 6-digit product identification code located on your mower's frame ID label prior to order finalization.