ZF 4699.170.103 MOTOR | OEM Genuine Part

Overview

The ZF 4699.170.103 MOTOR is a critical hydraulic drive component within the power take-off (PTO) assembly of heavy-duty construction machinery transmissions. This OEM genuine part converts hydraulic pressure into mechanical rotational force to engage auxiliary systems such as pumps, winches, or cooling fans. Positioned directly on the transmission housing, the motor interfaces with the main gear train through a splined shaft. The SKU 4699.170.103 ensures precise OEM fitment and reliable torque output for demanding off-highway applications.

Symptoms of Failure

When the ZF 4699.170.103 MOTOR begins to wear, operators may notice erratic hydraulic motor engagement during cold starts, often accompanied by a delayed response when activating auxiliary equipment. A second common failure sign is low hydraulic pressure at the motor port, which can cause sluggish operation or complete loss of function in the driven attachment. Third, external oil seepage around the motor shaft seal frequently occurs, leading to gradual fluid loss and contamination of the transmission housing area. Finally, unusual whining or grinding noises from the PTO section indicate internal bearing or gear damage, requiring immediate inspection.

Technical Specifications

Compatibility

This motor is engineered for use in ZF WG series transmissions commonly found in wheel loaders, graders, and telescopic handlers. It is directly compatible with the WG180, WG200, and WG211 transmission models. The part also fits select WG120 and WG150 variants when used with the appropriate 4699101081: HOUSING adapter. For complete assembly, ensure the 0501329881: HOUSING COVER is properly torqued to prevent fluid leaks. Always replace the 0634306309: O-RING during installation to maintain seal integrity, and verify the 0637885612: BREATHER is clear to avoid pressure buildup.

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