ZF 4143.351.031 END SHIM | OEM Genuine Part

Overview

The ZF 4143.351.031 END SHIM is a precision-engineered spacer component responsible for maintaining correct axial clearance within the clutch pack and planetary gear assemblies of ZF heavy-duty transmissions. Positioned at the end of the shaft stack, this OEM genuine part ensures that bearing preload and gear alignment remain within factory tolerances. The SKU 4143.351.031 is specifically designed to compensate for manufacturing tolerances, preventing metal-to-metal contact and ensuring smooth power flow. When installed alongside a 4143101016 HOUSING or a 4143301039 HOUSING, this shim locks the rotating assembly in place, eliminating axial play that leads to premature wear.

Symptoms of Failure

When the ZF 4143.351.031 END SHIM wears or is incorrectly sized, operators will notice distinct performance issues. Look for these specific failure symptoms:

• Low-frequency gear whine or growling during deceleration, indicating excessive end-play in the planetary set.
• Intermittent gear slipping under load, especially when climbing grades or towing, as the clutch pack loses clamping force.
• Oil seepage from the housing seam near the output flange, caused by vibration loosening the 0636101084 CAP SCREW fasteners.
• Metallic debris in the transmission fluid filter, a direct result of shim fretting against the 0501318136 GASKET surface.

Technical Specifications

Compatibility

This end shim is a direct-fit component for the ZF HL 100 Series and ZF HL 270 Series transmission families. It is also commonly specified for rebuilds of the ZF WG180, WG200, and WG210 series, where it sits between the output shaft and the rear housing. In the ZF 4WG-310 and 5WG-350 models, this shim is used in conjunction with the 4143201019 VALVE INSERT to regulate hydraulic pressure to the clutch pack. Always verify stack height using the original housing and 0634306198 O-RING during assembly.

Related Components