ZF 4699.808.038 GK16 | OEM Genuine Part

Overview

The ZF 4699.808.038 GK16 is a precision-engineered component designed for the clutch pack assembly within ZF heavy-duty powershift transmissions. This OEM genuine part, identified by SKU 4699.808.038, functions as a critical friction element that engages and disengages gear sets under high torque loads. It sits directly between the piston and steel separator plates in the transmission’s hydraulic clutch drum, ensuring smooth power transfer from the engine to the driveline in construction machinery such as wheel loaders and dozers. The GK16 designation indicates a specific friction material composition and plate thickness optimized for durability in demanding off-road applications.

Symptoms of Failure

When the ZF 4699.808.038 wears out, operators often notice delayed engagement when shifting from forward to reverse, a common long-tail search query for transmission issues. Another clear indicator is intermittent gear slipping under heavy load, where the machine loses power during digging or climbing. You may also detect dark, burnt transmission fluid with a metallic smell, signaling that the friction material has degraded. Finally, erratic clutch chatter or shuddering during low-speed maneuvering points directly to worn GK16 plates that can no longer maintain consistent hydraulic pressure.

Technical Specifications

Compatibility

This GK16 friction plate is primarily compatible with ZF WG180 and WG200 series powershift transmissions, commonly found in construction machinery like loaders, graders, and compactors. It also fits select models in the ZF 4WG-200 and 6WG-200 families. Always verify the clutch pack stack height and steel plate count when replacing this part alongside the 4699101093 HOUSING or the 4699301175 HOUSING, as these components define the clutch cavity dimensions. For complete sealing, pair it with the 0634303936 O-RING and ensure the 4699301041 COVER is torqued to factory specifications.

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