ZF 4699.801.112 GK10 | OEM Genuine Part

Overview

The ZF 4699.801.112 GK10 is a critical OEM genuine gearset assembly designed for heavy-duty construction machinery transmissions. Positioned within the main drive train of ZF’s powershift gearboxes, this component directly manages torque distribution and gear ratio selection under extreme load conditions. The SKU 4699.801.112 identifies a factory-spec GK10 unit that integrates with the transmission housing and input shaft to ensure synchronized engagement. When paired with a properly sealed 4699101081 HOUSING, this part maintains precise alignment of planetary gears, preventing premature wear on adjacent assemblies.

Symptoms of Failure

Operators experiencing “ZF transmission gear slipping under load” or “hard shifting in construction loaders” should inspect the GK10 assembly. Common failure indicators include:

• Intermittent gear disengagement during uphill operation, often accompanied by a grinding noise from the bell housing area.
• Metallic debris in transmission fluid caused by spalling on the GK10 gear teeth, detectable during routine oil changes.
• Delayed clutch pack engagement when shifting from forward to reverse, indicating worn splines on the 4699.801.112 unit.
• Oil seepage around the transmission cover due to degraded sealing, often linked to a failing 0634306309 O-RING at the housing interface.

Technical Specifications

Compatibility

This GK10 gearset is engineered for ZF WG-series powershift transmissions commonly used in wheel loaders, dozers, and excavators. Verified compatible models include:

• ZF WG180 (6-speed, 180 kW class)
• ZF WG200 (6-speed, 200 kW class)
• ZF WG210 (6-speed, 210 kW class)
• ZF 4WG200 (4-speed variant)

Always verify the 0501329881 HOUSING COVER condition during installation, as warpage can misalign the GK10. For optimal sealing, replace the 0637885612 BREATHER to prevent pressure buildup that forces oil past the O-ring.

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