ZF 0769.172.769 SPRING WASHER for WG200/WG201 | OEM Genuine Part

Overview

The ZF 0769.172.769 SPRING WASHER is a precision-engineered OEM genuine component designed specifically for the WG200 and WG201 series transmissions. This critical load-distribution element sits between the transmission housing and fastener assemblies, ensuring consistent clamping force under high-torque conditions. The SKU 0769.172.769 functions as a Belleville-style spring washer that maintains preload on bolted connections, preventing loosening from vibration and thermal cycling. It is frequently replaced during major overhauls alongside the 4644101212: TRANSMISSION HOUSING and 4644301221: TRANSMISSION HOUSING to restore original bolt tension specifications.

Symptoms of Failure

• Transmission housing bolt loosening – When the spring washer fatigues, bolts securing the TRANSMISSION HOUSING lose torque, leading to audible rattling and potential oil seepage at mating surfaces.
• Intermittent gear engagement issues – Loss of clamping force on valve body or clutch pack assemblies causes delayed or harsh shifting, particularly under load.
• Vibration-induced component wear – A collapsed spring washer allows micro-movement between the housing and the 0631311009: GROOVED STUD, accelerating fretting corrosion on adjacent parts.
• Oil contamination from fastener migration – Loose hardware can shear off and circulate debris through the hydraulic system, often misdiagnosed as filter blockage.

Technical Specifications

Compatibility

This spring washer is engineered for ZF WG-series transmissions, with primary application in the WG180, WG200, and WG201 models. It is also compatible with certain variants of the WG160 and WG210 series where the housing bolt pattern matches. The washer is installed on the 0730365067: TYPE PLATE mounting studs and directly interfaces with the GROOVED STUD assemblies. Always verify bolt diameter and stack height against your transmission’s service manual before installation.

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