ZF 4699.005.011 GK30 | OEM Genuine Part

Overview

The ZF 4699.005.011 GK30 is a precision-engineered OEM genuine part designed for the clutch pack assembly within heavy-duty ZF transmissions used in construction machinery. This component functions as a critical friction element, managing torque transfer between planetary gear sets during gear shifts. Positioned inside the main transmission housing, the SKU 4699.005.011 ensures smooth engagement and disengagement under high-load conditions, directly influencing machine drivability and operational efficiency. When paired with the 4699101044 HOUSING, it forms a sealed unit that withstands extreme hydraulic pressures common in wheel loaders and graders.

Symptoms of Failure

• Delayed or harsh gear engagement – Worn friction material causes hesitation when shifting from neutral to drive, often accompanied by a jolt. This is a common “transmission slipping under load” issue in ZF units.
• Oil contamination with metallic debris – As the GK30 wears, fine metal particles appear in the transmission fluid, visible during routine drain intervals. This signals imminent clutch pack failure.
• Overheating transmission housing – Excessive heat generation from slipping clutches raises the temperature of the 4699301111 HOUSING, leading to fluid breakdown and seal degradation.
• Intermittent loss of power to wheels – Under heavy load, the transmission may momentarily lose torque, particularly when climbing grades or pushing material.

Technical Specifications

Compatibility

This GK30 friction plate is engineered for ZF WG series transmissions commonly deployed in construction machinery. It is directly compatible with the WG180, WG200, and WG210 models, which power equipment such as wheel loaders, telehandlers, and backhoe loaders. The part also fits select variants of the WG150 series when used with the 4699301054 HOUSING COVER and 4699301055 COVER. Always verify stack height with the retaining ring groove depth to ensure proper clearance.

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