ZF 4616.303.125 COVER for WG 65 | OEM Genuine Part

Overview

The ZF 4616.303.125 COVER is a critical sealing component designed specifically for the WG 65 series transmission. This OEM genuine part encloses the rear section of the transmission housing, protecting internal gear assemblies from contaminants while maintaining proper oil pressure. Positioned between the TRANSMISSION HOUSING and the output flange, this cover ensures structural integrity under high torque loads. The SKU 4616.303.125 is precision-machined to ZF’s exacting tolerances, making it essential for any WG 65 rebuild or repair.

Symptoms of Failure

• Oil seepage around the rear flange: A worn or cracked 4616.303.125 cover often causes transmission fluid to leak near the output shaft, leaving visible puddles under the vehicle.
• Gear engagement hesitation: When this cover loses its seal, air enters the hydraulic system, leading to delayed or rough shifting in the WG 65.
• Increased operating noise: A loose or damaged cover allows vibration from the planetary gears to transmit through the housing, producing a distinct whining sound during acceleration.
• Contaminated transmission fluid: Cracks in the cover permit dirt and moisture ingress, which accelerates wear on internal components like the FILTER INSERT.

Technical Specifications

Compatibility

This cover is engineered for the ZF WG 65 series, but it also fits select models in the WG180 and WG200 families due to shared housing designs. Specifically, it is compatible with WG 65-1, WG 65-2, WG 180-3, and WG 200-4 transmissions manufactured after 2010. Always verify the bolt pattern matches your TRANSMISSION HOUSING before installation. For secure mounting, use the HEXAGON SCREW (M10x25), HEXAGON SCREW (M10x30), and HEXAGON SCREW (M10x35) in their respective positions.

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