ZF 4699.808.039 GK16 | OEM Genuine Part

Overview

The ZF 4699.808.039 GK16 is a precision-engineered OEM genuine part designed for heavy-duty construction machinery transmissions. This component functions as a critical gear or clutch hub element within the ZF power shift transmission assembly, ensuring smooth torque transfer and reliable engagement under high-load conditions. The SKU 4699.808.039 is manufactured to exact ZF factory tolerances, making it a direct replacement for worn or damaged units in off-highway equipment such as wheel loaders, graders, and dump trucks. It sits within the planetary gear set or clutch pack area, where it interfaces with adjacent housings and sealing elements to maintain hydraulic integrity and mechanical alignment.

Symptoms of Failure

• Delayed or harsh gear engagement: When the 4699.808.039 wears, operators often notice a lag or jolt when shifting between forward and reverse, particularly under load.
• Transmission oil leaks around the clutch housing: A worn GK16 component can compromise the seal surface, leading to external fluid seepage near the bell housing or intermediate plate.
• Intermittent slipping under heavy torque: As the part loses its dimensional stability, the clutch pack may fail to hold pressure, causing power loss during digging or climbing operations.
• Metallic debris in the oil pan: Advanced wear generates fine metal particles, which can be detected during routine oil changes and indicates imminent failure of the 4699.808.039.

Technical Specifications

Compatibility

This OEM genuine part is primarily used in ZF WG180, WG200, and WG310 series power shift transmissions commonly found in construction machinery. It is also compatible with certain ZF 4WG-200 and 6WG-200 variants used in articulated dump trucks and large wheel loaders. Always verify the transmission serial number and housing configuration before installation. For proper assembly, this component works in conjunction with the 4699101093 HOUSING and the 4699301175 HOUSING, which provide structural support and oil routing channels. The 4699301041 COVER seals the clutch pack, while the 0634303936 O-RING prevents hydraulic fluid bypass between mating surfaces.

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