ZF 0730.005.776 WASHER for WG201 | OEM Genuine Part

Overview

The ZF 0730.005.776 WASHER for WG201 is a precision-engineered OEM genuine component designed to provide a critical sealing and load-distribution interface within the planetary gear set assembly of the WG 201 series transmission. This hardened steel washer sits between the transmission housing and the rotating shaft assembly, preventing axial movement and ensuring proper oil film thickness for clutch pack engagement. The SKU 0730.005.776 is a direct replacement part that maintains factory tolerances, reducing the risk of premature wear on adjacent components such as the TRANSMISSION HOUSING and the TRANSMISSION HOUSING.

Symptoms of Failure

• Oil leaks from the bell housing area: A worn 0730.005.776 washer can cause misalignment, leading to seal extrusion and transmission fluid weeping around the front pump housing.
• Gear slipping under load: When the washer loses its thickness, axial clearance increases, causing clutch packs to slip during torque converter lockup or high-gear operation.
• Metallic grinding noise during shifts: A collapsed washer allows metal-on-metal contact between the shaft and the THREADED BUSH, producing a distinct grinding sound in 2nd and 3rd gears.
• Erratic shift timing: Worn washers alter the end-play tolerance, confusing the valve body’s hydraulic logic and causing delayed or harsh engagements.

Technical Specifications

Compatibility

This washer is engineered for the ZF WG 201 series, but it also fits select models in the WG180 and WG200 families due to shared planetary carrier designs. It is commonly used in ZF WG180, WG200, and WG201 transmissions found in medium-duty trucks, buses, and off-highway equipment. Always verify end-play specifications when replacing this washer alongside the SCREW PLUG and the COVER PLATE.

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