ZF 0730.001.332 WASHER for WG250 | OEM Genuine Part

Overview

The ZF 0730.001.332 WASHER is a precision-engineered OEM genuine component designed specifically for the WG 250 Series transmission. This hardened steel washer functions as a critical load-spreading interface between fasteners and the transmission housing assembly, ensuring uniform clamping force and preventing surface deformation under high torque conditions. Located within the main gear train area, the SKU 0730.001.332 directly supports the structural integrity of the TRANSMISSION HOUSING and adjacent HOUSING components. As an OEM genuine part, it meets ZF’s exacting metallurgical standards for hardness, flatness, and corrosion resistance, making it essential for maintaining factory-specified clearances in heavy-duty industrial transmissions.

Symptoms of Failure

When the ZF 0730.001.332 WASHER degrades or is omitted during service, operators typically encounter these specific failure modes:

• Oil seepage at housing joints: A worn or crushed washer reduces clamping force, allowing transmission fluid to escape past the COVER interface.
• Abnormal gear rattle under load: Loss of washer thickness alters axial play, causing gear teeth to contact improperly during torque transfer.
• Fastener loosening during operation: A deformed washer cannot maintain preload, leading to HEXAGON SCREW back-out and potential internal damage.
• Increased vibration at the bell housing: Uneven load distribution from a failed washer creates micro-movement between mating surfaces.

Technical Specifications

Compatibility

This washer is primarily specified for the ZF WG 250 Series transmission, but its dimensional profile also supports select models in the WG 180 and WG 200 families when used in conjunction with the correct CAP SCREW and COVER SHEET. It is commonly found in WG 250, WG 251, and WG 252 variants, particularly where the COVER SHEET and TYPE PLATE are mounted. For applications using a GROOVED STUD or CAP SCREW, verify stack height against the transmission service manual to ensure proper preload.

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