ZF 4644.323.022 COVER for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.323.022 COVER is a critical sealing component engineered for the WG 180 and WG 200 series transmissions. This OEM genuine part sits on the rear housing of the transmission, acting as a protective barrier that contains hydraulic fluid and shields internal gear assemblies from external contaminants. As a factory-specified replacement, the SKU 4644.323.022 ensures precise fitment and material integrity, directly matching the original equipment specifications to maintain optimal transmission performance in heavy-duty industrial applications.

Symptoms of Failure

• Hydraulic fluid seepage around the rear housing: A worn or cracked 4644.323.022 cover often leads to visible oil leaks, especially after extended operation under high torque loads.
• Contaminated transmission fluid: When the cover loses its seal, dirt and moisture can enter the WG 200 gearbox, causing premature wear on internal components like the 4460165051 CONSOLE.
• Unusual gear engagement noise: A failing cover may allow pressure loss, resulting in delayed or harsh shifting as the hydraulic system struggles to maintain proper clutch pack engagement.
• Visible cracks or deformation on the cover surface: Thermal cycling or physical impact can distort the part, leading to intermittent leaks and reduced transmission efficiency.

Technical Specifications

Compatibility

This cover is specifically designed for the ZF WG 180 and WG 200 series transmissions, which are widely used in off-highway vehicles, construction equipment, and agricultural machinery. It is a direct replacement for the original factory cover in these models. For proper installation, ensure the mating surface is clean and use the 0636011429 HEXAGON SCREW along with the 0730100365 WASHER to secure the cover to the transmission housing. Additionally, the 4460368311 CONSOLE is often mounted adjacent to this cover, providing structural support for the shift mechanism.

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