ZF 4642.330.118 SPACER WASHER for WG150 | OEM Genuine Part

Overview

The ZF 4642.330.118 SPACER WASHER is a precision-engineered OEM genuine component designed specifically for the WG150 series transmission. This critical shim maintains exact axial clearance between rotating assemblies within the gear train, ensuring proper load distribution and alignment. Installed between the transmission housing and planetary gear sets, the spacer washer prevents metal-to-metal contact that would otherwise accelerate wear. The SKU 4642.330.118 is manufactured to ZF’s original tolerances, guaranteeing a direct fit without modification. When replacing this washer, technicians often inspect the adjacent TRANSMISSION HOUSING (4642101047) and TRANSMISSION HOUSING (4642301207) for cracks or distortion that could compromise the new washer’s seating.

Symptoms of Failure

• Transmission gear slipping under load: A worn 4642.330.118 spacer washer allows excessive end-play, causing clutch packs to lose engagement pressure during acceleration.
• Metallic grinding noise from the WG150 housing: When the washer thins beyond specification, hardened steel components contact the GROOVED STUD (0631311009) or housing, producing a distinct scraping sound.
• Low hydraulic pressure readings: Axial movement from a degraded spacer washer disrupts oil flow paths, leading to pressure drops that trigger fault codes.
• Visible metal debris in transmission fluid: As the washer erodes, fine metallic particles circulate through the system, often clogging the SCREEN SHEET (4642301168).

Technical Specifications

Compatibility

While primarily designed for the WG150 transmission, the 4642.330.118 spacer washer is also compatible with the ZF WG180, WG200, and WG250 series when used in the same axial position. Always verify the part number against your transmission’s TYPE PLATE (0730365067) to confirm fitment. This washer is not interchangeable with the thinner 4642.330.117 variant used in earlier WG100 builds.

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