ZF 4699.801.156 GK10 | OEM Genuine Part

Overview

The ZF 4699.801.156 GK10 is a precision-engineered OEM genuine part designed for the final drive assembly of heavy-duty construction machinery transmissions. This component, identified by SKU 4699.801.156, functions as a critical gear set within the planetary hub, directly transferring torque from the differential to the wheel hub. It sits at the outermost section of the transmission axle, where it must withstand extreme radial loads and high-temperature operating conditions. The GK10 designation indicates a specific gear ratio optimized for low-speed, high-torque applications common in wheel loaders and graders. When installed alongside the 4699101094: HOUSING, this part ensures proper alignment and load distribution across the entire drive assembly.

Symptoms of Failure

When the ZF 4699.801.156 GK10 begins to wear, operators will notice distinct performance degradation. Grinding noises during low-speed turns often indicate gear tooth surface fatigue or pitting. Intermittent wheel lock-up under load suggests broken or chipped gear teeth, which can cause sudden transmission jolts. Metallic debris in the axle oil is a clear sign of advanced wear, often accompanied by reduced traction on inclines due to slipping in the planetary set. If these symptoms appear, immediate inspection of the 0634306309: O-RING and 0630513065: SNAP RING is recommended, as seal failures accelerate gear degradation.

Technical Specifications

Compatibility

This GK10 gear set is primarily compatible with ZF WG180, WG200, and WG210 series transmissions used in construction machinery. It also fits select models of the ZF 4WG-200 and 5WG-300 power shift transmissions. The part is designed for use in axles with a 10-ton load capacity, commonly found in Volvo L90/L120 wheel loaders and Caterpillar 950/962 medium wheel loaders. For proper installation, always pair this gear with the 0501329881: HOUSING COVER to maintain correct axial clearance.

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