ZF 4699.008.034 GK16 | OEM Genuine Part

Overview

The ZF 4699.008.034 GK16 is a genuine OEM gear component engineered for the hydraulic clutch pack assembly in heavy-duty ZF transmissions. This precision-machined part, identified by SKU 4699.008.034, functions as a critical torque-transfer element within the planetary gear set. It is specifically designed to engage and disengage under high pressure, ensuring smooth power distribution in construction machinery such as wheel loaders and graders. When paired with the 4699101093 HOUSING and the 4699301175 HOUSING, this component forms a sealed, high-torque assembly that withstands extreme operational loads.

Symptoms of Failure

When the ZF 4699.008.034 GK16 wears out, operators often notice delayed gear engagement under load—a classic sign of internal clearance loss. Another common symptom is intermittent transmission slipping during uphill operation, which indicates insufficient clutch pack pressure. You may also detect metallic debris in the transmission oil filter or erratic shifting patterns when the part’s splines degrade. These issues frequently occur alongside a failing 0634303936 O-RING, which can cause fluid bypass and accelerate wear.

Technical Specifications

Compatibility

This genuine part is primarily used in ZF WG180 and ZF WG200 series transmissions, which are common in construction machinery like loaders and dozers. It also fits select ZF 4WG-200 and ZF 6WG-200 variants. For proper sealing, always inspect the 4699301041 COVER for warping during installation. The GK16 gear interfaces directly with the clutch hub, making it essential to verify spline condition on the 4699101093 HOUSING before reassembly.

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