ZF 4143.302.105 INPUT SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4143.302.105 INPUT SHAFT is a precision-machined, OEM genuine component engineered for the WG100, WG130, and WG131 transmission series. This shaft transmits torque directly from the engine to the planetary gear sets, making it the critical first point of power transfer within the driveline. As a high-stress rotating element, it interfaces directly with the 4143101032: HOUSING and the 4143301055: HOUSING to maintain precise alignment. The SKU 4143.302.105 is manufactured to ZF’s original equipment tolerances, ensuring a direct, no-modification replacement for worn or damaged shafts in heavy-duty industrial applications.

Symptoms of Failure

• Transmission gear slipping under load: A worn input shaft spline or bearing journal causes intermittent power loss, especially during uphill or high-torque maneuvers.
• Metallic grinding noise from the bell housing: Excessive radial play in the shaft leads to contact between the input shaft and the surrounding 0631329135: SPRING PIN or housing bore.
• Oil leaks at the front seal area: A scored or pitted shaft surface destroys the sealing lip, allowing transmission fluid to weep past the 0501214034: SEALING CAP.
• Vibration in neutral or drive: An unbalanced or bent input shaft creates harmonic vibrations that accelerate wear on the 4143298040: CASE bearings.

Technical Specifications

Compatibility

This genuine ZF input shaft is specifically designed for the WG100, WG130, and WG131 transmission models. It is also compatible with the HL 100 Series and HL 270 Series transfer case assemblies. Based on its spline count and bearing geometry, it may also fit select WG180 and WG200 variants when used with the correct 0636101024: CAP SCREW and 4475280099: SCREW PLUG for end-play adjustment. Always verify your transmission serial number before ordering.

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