ZF 0734.319.718 SHAFT SEAL for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 0734.319.718 SHAFT SEAL is a critical OEM genuine component engineered for the WG100, WG130, and WG131 transmission series. This precision seal sits at the output shaft interface, preventing fluid migration and maintaining hydraulic pressure within the gearbox housing. As part of the Seals & Gaskets category, part number 0734.319.718 ensures a tight barrier against contaminants while preserving lubricant integrity. During a full rebuild, this seal is often replaced alongside the 4143101022: HOUSING to guarantee a leak-free assembly.

Symptoms of Failure

• Transmission fluid puddles under the bell housing – A worn 0734.319.718 shaft seal allows oil to escape, leaving visible drips on the ground after parking.
• Low hydraulic pressure causing delayed engagement – When the seal fails, internal pressure drops, leading to sluggish gear shifts or hesitation when moving from neutral to drive.
• Contaminated fluid from external debris ingress – A compromised seal lets dirt and moisture enter the transmission, accelerating wear on internal components like the 4143301044: HOUSING.
• Whining noise from the output shaft area – Insufficient lubrication due to seal leakage creates audible friction, often mistaken for bearing failure.

Technical Specifications

Compatibility

This shaft seal is specifically designed for ZF WG100, WG130, and WG131 transmissions. It also fits select variants of the WG180 and WG200 series where the output shaft diameter matches. Always verify the housing bore dimensions before installation. For a complete seal kit, consider pairing this part with the 0631329135: SPRING PIN and 0636302014: SCREW PLUG to secure adjacent components.

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