ZF 4699.170.206 MOTOR | OEM Genuine Part

Overview

The ZF 4699.170.206 MOTOR is a critical hydraulic drive component engineered for precise power delivery within ZF construction machinery transmissions. This OEM genuine part converts hydraulic pressure into mechanical torque, directly engaging the transmission’s gear train to control vehicle movement. Positioned at the interface between the pump and the clutch assembly, the 4699.170.206 motor ensures smooth modulation of drive force under heavy loads. The SKU 4699.170.206 is specifically designed to match factory tolerances, reducing wear on adjacent components such as the 4699025081 GP25 and the 4699101157 HOUSING. Its robust construction supports sustained operation in excavators, loaders, and graders, where consistent torque output is non-negotiable.

Symptoms of Failure

• Intermittent torque loss under load: When the motor’s internal seals degrade, you may notice a sudden drop in drive power during digging or lifting cycles, often accompanied by erratic gear engagement.
• Hydraulic fluid contamination: Worn piston rings or valve plates allow metal debris to circulate, leading to “transmission shudder” and reduced responsiveness in cold-start conditions.
• External oil seepage at motor housing: Cracks or gasket failure around the 4699.170.206 unit cause visible leaks near the 4699102095 INPUT shaft, requiring immediate replacement to avoid pressure loss.
• Abnormal whining or grinding noise: Bearing fatigue inside the motor produces a high-pitched sound during acceleration, signaling imminent failure if paired with a worn 4699103075 OUTPUT assembly.

Technical Specifications

Compatibility

This motor is engineered for ZF’s WG series powershift transmissions commonly used in construction machinery. It directly fits the WG180, WG200, and WG210 models, where it interfaces with the clutch pack and valve body. The 4699.170.206 is also compatible with select WG150 variants when paired with the correct 4699201018 HOUSING adapter. For optimal sealing, always install a new 0634801038 SEALING RING and 0636302013 SCREW PLUG during replacement. Verify your transmission’s serial number against ZF’s compatibility chart to ensure correct fitment.

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