ZF 4699.170.134 MOTOR | OEM Genuine Part

Overview

The ZF 4699.170.134 MOTOR is a critical hydraulic drive component engineered for demanding construction machinery transmissions. This OEM genuine part converts hydraulic pressure into mechanical torque, directly powering the transmission’s internal pump system. Positioned within the valve body assembly, the SKU 4699.170.134 regulates fluid flow to engage clutch packs and shift gears under heavy load. When paired with a compatible 4699101107 HOUSING, this motor ensures precise oil distribution for smooth power delivery in wheel loaders and excavators.

Symptoms of Failure

• Intermittent gear slipping under load: A worn 4699.170.134 motor fails to maintain hydraulic pressure, causing the transmission to lose torque during digging or lifting operations.
• Delayed or harsh shifting: When the motor’s internal seals degrade, you may experience a 2-3 second lag between gear engagements, often accompanied by a metallic clunk.
• Hydraulic oil contamination: Metal particles from a failing motor can circulate through the system, damaging the 4699008042 GK16 gear kit and accelerating wear on adjacent components.
• Erratic transmission response: The machine may unexpectedly drop into neutral or fail to hold a gear on inclines, indicating the motor is no longer delivering consistent flow to the 4699102151 INPUT shaft assembly.

Technical Specifications

Compatibility

This motor is engineered for ZF WG-series powershift transmissions commonly found in construction machinery. It directly fits the WG180, WG200, and WG210 models used in wheel loaders, backhoes, and telescopic handlers. The 4699.170.134 also integrates with the 4699103113 OUTPUT shaft assembly in the WG180 variant. For proper installation, ensure the mating 4699301191 HOUSING is free of scoring and the 0634303936 O-RING is replaced simultaneously to prevent fluid bypass.

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