ZF 4644.330.119 SPACER WASHER for WG181/WG201 | OEM Genuine Part

Overview

The ZF 4644.330.119 SPACER WASHER is a precision-engineered shim component designed for the WG181 and WG201 series transmissions. This OEM genuine part maintains critical axial clearance between rotating assemblies within the planetary gear set, ensuring proper load distribution and oil flow. The SKU 4644.330.119 sits directly between the sun gear and the thrust bearing, acting as a wear-resistant buffer that prevents metal-on-metal contact during high-torque operations. Without this spacer, the transmission housing would experience accelerated fatigue, leading to premature failure of adjacent components like the TRANSMISSION HOUSING.

Symptoms of Failure

• Erratic gear engagement under load: A worn spacer washer causes excessive end-play, leading to delayed or harsh shifting when the transmission is hot.
• Low-frequency humming from the planetary section: As the washer thins, the sun gear contacts the TRANSMISSION HOUSING, producing a distinct drone at highway speeds.
• Metallic debris in the oil pan: Flaking from a fatigued spacer washer contaminates the hydraulic circuit, often clogging the SCREW PLUG magnet.
• Oil seepage at the output flange: Worn axial clearance forces oil past the THREADED BUSH, creating visible drips on the bell housing.

Technical Specifications

Compatibility

This spacer washer is engineered for ZF WG180 and WG200 series transmissions, including the WG181 and WG201 variants. It also fits select WG150 and WG210 models produced between 2005 and 2018. Always verify the planetary carrier stack height before installation, as the washer compensates for manufacturing tolerances in the COVER PLATE assembly.

Related Components