ZF 4616.301.010 COVER for WG 65 | OEM Genuine Part

Overview

The ZF 4616.301.010 COVER is a critical sealing and structural component engineered specifically for the WG 65 series transmission. This OEM genuine part mounts directly onto the TRANSMISSION HOUSING, forming a protective barrier that maintains internal oil pressure and shields gear assemblies from external contaminants. As an integral element of the rear section, the SKU 4616.301.010 ensures precise alignment of internal shafts while preventing lubricant migration. Constructed from high-strength cast alloy, this cover withstands extreme thermal cycling and mechanical stress inherent in heavy-duty industrial applications.

Symptoms of Failure

• Progressive oil seepage around the rear housing joint: When the 4616.301.010 cover loses its sealing integrity, transmission fluid begins to weep from the mating surface, often leaving visible drips beneath the vehicle during idle periods.
• Erratic gear engagement under load: A warped or cracked cover allows minute housing flex, causing misalignment that manifests as delayed or harsh shifting during high-torque operations.
• Contaminated transmission fluid with metallic debris: Structural failure of this cover permits external grit ingress, accelerating internal wear and producing visible particulate in oil samples.
• Audible whining or grinding from the rear transmission section: Loss of bearing preload due to cover distortion creates abnormal gear mesh noise, particularly noticeable during deceleration.

Technical Specifications

Compatibility

This cover is precision-machined for the ZF WG 65 series, including models WG 65, WG 65-2, and WG 65-3. It also serves as a direct replacement in certain WG 80 and WG 100 variants where the rear housing architecture matches the 4616.301.010 bolt pattern. Always verify housing compatibility by cross-referencing the CYLINDRICAL PIN alignment holes and the O-RING groove dimensions. For WG 180 or WG 200 transmissions, consult the OEM parts catalog as these larger units utilize a different cover profile.

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