ZF 4616.303.173 COVER for WG 65 | OEM Genuine Part

Overview

The ZF 4616.303.173 COVER is a critical OEM genuine component engineered specifically for the WG 65 series transmission. This precision-machined housing component seals the valve body and hydraulic control unit, ensuring that transmission fluid remains pressurized and free of contaminants. As a structural cover, it sits directly over the main control module, protecting sensitive internal components from debris and mechanical stress. The SKU 4616.303.173 is manufactured to ZF’s exacting tolerances, guaranteeing a perfect fit and long service life in heavy-duty industrial applications.

Symptoms of Failure

• External oil leaks around the transmission housing: A worn or cracked cover allows pressurized ATF to escape, often pooling beneath the vehicle or equipment. This is a common long-tail search query for “ZF WG65 cover oil leak repair.”
• Erratic gear engagement or slipping: When the cover loses its seal, hydraulic pressure drops, causing delayed shifts or complete loss of gear engagement during operation.
• Contaminated transmission fluid: A compromised cover permits dirt and moisture to enter the valve body, leading to premature wear of internal components like the 4616105417: VALVE and 0501319251: SOLENOID VALVE.
• Visible cracks or deformation on the cover surface: Physical damage from road debris or overtightening can cause structural failure, requiring immediate replacement.

Technical Specifications

Compatibility

This cover is primarily designed for the ZF WG 65 series transmission, commonly found in off-highway vehicles, construction equipment, and agricultural machinery. Based on its design and mounting pattern, it is also compatible with the following ZF models: WG 180, WG 200, WG 210, and WG 310. Always verify fitment using your transmission’s serial number before installation. For proper assembly, pair this cover with a new 0634801038: SEALING RING and 0636302013: SCREW PLUG to prevent leaks.

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