ZF 4699.801.243 GK10 | OEM Genuine Part

Overview

The ZF 4699.801.243 GK10 is a genuine OEM gear cluster assembly engineered for heavy-duty construction machinery transmissions. This critical internal component functions as a primary torque-transfer element within the planetary gear set, directly influencing shift quality and power delivery. The SKU 4699.801.243 is precision-machined to OEM tolerances, ensuring seamless integration with mating shafts and housings. When installed, it works in concert with the 4699001202 GK10 to synchronize gear engagement under extreme load conditions.

Symptoms of Failure

• Intermittent gear slippage under load: Worn teeth on the 4699.801.243 cause the transmission to lose torque during excavation or grading operations, often misdiagnosed as hydraulic issues.
• Metallic grinding noise from the transmission housing: Degraded bearing surfaces or chipped gear teeth produce a distinct high-pitched whine that intensifies with engine RPM.
• Delayed or harsh shifting: A failing GK10 assembly prevents smooth engagement between the 4699101125 HOUSING and the 4699102156 INPUT shaft, causing jarring gear changes.
• Contaminated transmission fluid with metal particles: Accelerated wear of the gear cluster sheds debris into the oil, which can clog the 0637885612 BREATHER and reduce lubrication efficiency.

Technical Specifications

Compatibility

This genuine ZF part is specifically designed for the following transmission models used in construction machinery such as wheel loaders, graders, and compactors:

• ZF WG180
• ZF WG200
• ZF WG210
• ZF WG310 (early production variants)

It directly interfaces with the 4699103016 OUTPUT shaft assembly and must be paired with the correct 0634306309 O-RING to prevent fluid bypass. Always verify your transmission serial number before ordering.

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