ZF 4699.803.036 GK20 | OEM Genuine Part

Overview

The ZF 4699.803.036 GK20 is a precision-engineered OEM genuine part designed for the demanding environment of construction machinery transmissions. This component functions as a critical interface element within the gearbox assembly, ensuring proper alignment and load distribution during high-torque operations. The SKU 4699.803.036 is specifically calibrated to maintain hydraulic pressure integrity and mechanical stability in ZF power shift transmissions. When installed correctly, it directly supports the clutch pack and planetary gear sets, reducing vibration and preventing premature wear on adjacent assemblies.

Symptoms of Failure

• Oil leaks around the transmission housing – A worn 4699.803.036 can cause fluid seepage at the joint between the 4699101046 HOUSING and the main casing, leading to low hydraulic pressure.
• Gear slipping under load – When this part degrades, it fails to maintain proper clearance, resulting in intermittent clutch disengagement during heavy excavation or lifting.
• Unusual metallic grinding noises – Excessive play from a fatigued component creates contact between the 4699301109 HOUSING and rotating elements, producing audible wear indicators.
• Erratic shift timing – A compromised seal surface disrupts oil flow to the valve body, causing delayed or harsh gear changes in WG-series transmissions.

Technical Specifications

Compatibility

This OEM genuine part is engineered for ZF power shift transmissions commonly used in wheel loaders, dozers, and excavators. It is directly compatible with the WG180, WG200, and WG210 series gearboxes. The 4699.803.036 also integrates with the 4699301017 BEARING COVER and the 4699301085 COVER to form a complete sealing assembly. For optimal performance, always pair this part with the corresponding housing components listed below.

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