ZF 2099.304.005 COVER | OEM Genuine Part

Overview

The ZF 2099.304.005 COVER is an OEM genuine housing component designed to seal and protect the internal gear assembly within ZF construction machinery transmissions. Positioned on the differential housing unit, this cover prevents contamination ingress and maintains proper lubricant retention under high-torque operating conditions. The SKU 2099.304.005 is precision-machined to factory tolerances, ensuring a secure fit against the transmission casing. It works in conjunction with the 2099109038 DIFFERENTIAL and the 2098309008 CROWN WHEEL to maintain driveline integrity during heavy excavation and material handling cycles.

Symptoms of Failure

• Transmission fluid seepage around the housing joint – A worn or warped cover allows oil to escape, leading to low lubricant levels and potential gear damage.
• Metallic debris in the oil pan – Cracks in the cover can introduce foreign particles into the 2098209016 DIFFERENTIAL assembly, accelerating wear on internal components.
• Unusual whining or grinding noises from the axle area – Loss of seal integrity permits dirt entry, causing premature wear on the 2095309059 DIFF.HOUSING and adjacent bearings.
• Intermittent gear engagement hesitation – A compromised cover can lead to pressure loss within the transmission, affecting clutch pack response.

Technical Specifications

Compatibility

This cover is engineered for ZF heavy-duty transmissions commonly used in construction machinery. It is a direct fit for the WG180 and WG200 series, as well as the WG160 and WG210 variants. The part also integrates with 4WG-200 and 5WG-200 transfer cases found in wheel loaders and graders. Always verify your transmission model suffix before installation.

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