ZF 2099.328.002 COVER | OEM Genuine Part

Overview

The ZF 2099.328.002 COVER is a genuine OEM component designed to seal and protect the internal gear train within ZF heavy-duty transmissions used in construction machinery. This cover serves as a critical barrier against contaminants while maintaining proper oil pressure inside the differential housing assembly. The SKU 2099.328.002 corresponds to a precision-machined cover that mounts directly to the transmission casing, ensuring that lubricant remains contained and that debris does not compromise the 2098109042 DIFFERENTIAL or the 2098309011 CROWN WHEEL during operation. Without this cover, the entire drivetrain assembly risks accelerated wear from fluid loss or particle ingress.

Symptoms of Failure

When the ZF 2099.328.002 cover deteriorates, operators may notice several distinct failure modes. Oil seepage around the transmission housing is the most common indicator, often appearing as a wet film on the exterior of the casing. Unusual gear whine or grinding noises can develop if the cover loses its seal, allowing air to enter the lubrication system. Intermittent gear slipping under load may occur when oil pressure drops due to a compromised cover, particularly in WG-series transmissions. Finally, visible cracks or warping on the cover surface itself—often caused by thermal stress or impact damage—signal immediate replacement is needed to prevent catastrophic failure of the 2099209001 DIFFERENTIAL assembly.

Technical Specifications

Compatibility

This genuine ZF cover is primarily engineered for the WG180 and WG200 series transmissions, which are widely deployed in wheel loaders, graders, and dump trucks from manufacturers such as Volvo, Caterpillar, and Liebherr. It also fits select WG210 and WG240 variants where the differential housing interface matches the 245 mm bolt pattern. The cover interfaces directly with the 2098309010 DIFFERENTIAL HOUSING, ensuring proper alignment of the internal gear set. Always verify your transmission model’s serial number before ordering, as minor casting revisions may affect fitment.

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