ZF 4699.805.014 GK30 | OEM Genuine Part

Overview

The ZF 4699.805.014 GK30 is a critical OEM genuine component designed for the hydraulic control system within ZF heavy-duty transmissions. This part, identified by SKU 4699.805.014, functions as a precision-machined valve or actuator assembly that regulates clutch pressure and fluid flow in construction machinery drivelines. It sits directly within the transmission valve body, ensuring smooth gear engagement under high torque loads. When paired with the 4699101044 HOUSING, it forms a sealed unit that directs oil to the correct clutch packs. The 4699.805.014 is engineered to withstand extreme hydraulic pressures and thermal cycling common in excavators and wheel loaders.

Symptoms of Failure

When the ZF 4699.805.014 GK30 begins to wear, operators often notice delayed gear engagement or harsh shifting during direction changes. A common long-tail search query is “transmission jerks when shifting from forward to reverse,” which frequently traces back to this valve sticking. Another failure symptom is intermittent loss of drive under load, where the transmission slips out of gear on inclines. You may also detect hydraulic fluid contamination from internal debris, often accompanied by a burnt smell. If the 4699301111 HOUSING is cracked or the 4699301054 HOUSING COVER is warped, the 4699.805.014 may lose pressure regulation entirely.

Technical Specifications

Compatibility

This GK30 valve assembly is primarily used in ZF WG180, WG200, and WG211 series transmissions found in construction machinery. It also fits select models of the ZF Ergopower and Ecomix series. The 4699.805.014 is often replaced alongside the 4699301055 COVER to prevent recurring leaks. For wheel loaders and telehandlers using ZF 4WG-200 or 6WG-250 gearboxes, this part ensures consistent clutch modulation. Always verify your transmission serial number before ordering, as variations exist between early and late production units.

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