ZF 4616.303.016 COVER for WG 65 | OEM Genuine Part

Overview

The ZF 4616.303.016 COVER is a critical sealing and structural component engineered specifically for the WG 65 series transmission. This OEM genuine part encloses the rear section of the gearbox, protecting internal assemblies from contaminants while maintaining hydraulic pressure. Positioned directly over the output shaft area, the cover interfaces with the 4616105402 OUTPUT and the 4005303005 OUTPUT FLANGE to form a sealed unit. The SKU 4616.303.016 is precision-machined to ZF factory tolerances, ensuring a perfect fit on the 4616101119 TRANSMISSION HOUSING.

Symptoms of Failure

• Oil leakage at the rear transmission seal: A worn or cracked cover allows transmission fluid to seep past the mating surface, often visible as drips under the vehicle or equipment.
• Gear slipping under load: When the cover loses structural integrity, internal hydraulic pressure drops, causing delayed or erratic gear engagement during heavy operation.
• Unusual vibration from the output area: A loose or warped cover fails to properly support the output shaft, leading to driveline shudder at highway speeds.
• Contamination ingress: A damaged cover permits dirt and moisture to enter the transmission, accelerating wear on bearings and clutches.

Technical Specifications

Compatibility

This cover is designed for the ZF WG 65 series, but its mounting pattern and dimensions also suit several other ZF powershift transmissions. Compatible models include the WG 65, WG 80, WG 120, WG 150, WG 180, and WG 200 series. Always verify the bolt pattern and output shaft diameter before installation. The cover works in conjunction with the 0636011038 HEXAGON SCREW for secure fastening to the housing.

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