ZF 4699.170.089 MOTOR | OEM Genuine Part

Overview

The ZF 4699.170.089 MOTOR is a critical hydraulic drive component engineered for high-torque applications within ZF construction machinery transmissions. This OEM genuine part serves as the primary power input interface, converting hydraulic flow into rotational force to drive the transmission’s gear train. Positioned at the pump-to-transmission junction, the 4699.170.089 motor ensures precise speed control and load handling under extreme operating conditions. The SKU 4699.170.089 is specifically designed to match factory tolerances, guaranteeing seamless integration with existing ZF driveline assemblies.

Symptoms of Failure

• Erratic gear engagement or slipping – When the motor loses internal sealing integrity, hydraulic pressure drops, causing delayed or incomplete gear shifts during heavy loading.
• External hydraulic fluid leaks – Worn shaft seals or housing gaskets on the 4699.170.089 motor often produce visible oil seepage around the motor-to-transmission mounting flange.
• Unusual whining or grinding noises – Bearing degradation within the motor generates high-pitched sounds during operation, particularly under load or at low RPM.
• Reduced machine travel speed – Internal wear reduces volumetric efficiency, leading to slower propulsion despite normal engine RPM and pump output.

Technical Specifications

Compatibility

This motor is engineered for ZF’s WG series powershift transmissions commonly deployed in wheel loaders, excavators, and telehandlers. Primary compatible models include the WG180, WG200, and WG250 series. It also integrates with select 4WG-200 and 6WG-250 variants used in mid-to-heavy construction machinery. Always verify housing flange pattern and spline count against your specific transmission model before installation.

During replacement, inspect the 4699001217: GK10 gear kit for wear, as it directly meshes with the motor output. The 4699101125: HOUSING must be checked for cracks or distortion, while the 4699102074: INPUT shaft and 4699103016: OUTPUT flange should be examined for spline galling. Proper sealing also requires fresh 0634306309: O-RING and 0501329881: HOUSING COVER installation.

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