ZF 0501.217.173 MOTOR

Overview

The ZF 0501.217.173 MOTOR is a critical OEM genuine hydraulic drive component engineered for demanding construction machinery transmissions. This motor converts hydraulic pressure into mechanical torque, directly engaging the transmission’s geartrain to propel heavy equipment. Positioned within the driveline assembly, the SKU 0501.217.173 interfaces with the pump and final drive to ensure smooth power delivery under high load. As a factory-spec part, it guarantees precise fitment and durability in ZF systems, reducing downtime in excavators, wheel loaders, and graders.

Symptoms of Failure

• Erratic machine movement or jerky starts – Worn internal seals cause inconsistent hydraulic pressure, leading to hesitation during acceleration.
• Audible whining or grinding from the transmission – Bearing degradation inside the motor produces high-pitched noises, especially under load.
• Hydraulic oil contamination or overheating – Failed O-rings allow fluid bypass, raising operating temperatures and accelerating wear on adjacent parts like the HOUSING.
• Complete loss of drive in forward or reverse – A seized motor rotor stops torque transfer, often requiring immediate replacement of the INPUT shaft assembly.

Technical Specifications

Compatibility

This motor is designed for ZF WG series transmissions commonly used in construction machinery. Verified compatible models include WG180, WG200, and WG210. It also integrates with the GK10 gearbox kit and the OUTPUT flange assembly. Always confirm your transmission serial number before ordering.

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