ZF 4143.302.045 INPUT SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4143.302.045 INPUT SHAFT is a precision-machined, OEM genuine component engineered for the WG100, WG130, and WG131 transmission series. This shaft serves as the primary torque receiver from the engine, transferring rotational force directly into the planetary gear set. As a critical rotating element, it interfaces with the 4143101016 HOUSING and the 4143301039 HOUSING to ensure concentric alignment and smooth power flow. The SKU 4143.302.045 is manufactured to ZF’s original tolerances, guaranteeing a direct fit without modification.

Symptoms of Failure

• Transmission gear slipping under load: A worn input shaft spline or bearing journal causes intermittent disengagement, especially during acceleration or hill climbing.
• Persistent oil leaks at the bell housing: Degraded sealing surfaces on the shaft allow transmission fluid to escape past the 0501318136 GASKET and 0636101084 CAP SCREW assembly.
• Metallic grinding or whining noise: Pitting or scoring on the shaft surface creates abnormal contact with internal bearings, producing audible distress during operation.
• Vibration through the gearshift lever: A bent or unbalanced input shaft transmits harmonic oscillations into the transmission housing, felt directly by the operator.

Technical Specifications

Compatibility

This input shaft is designed for ZF WG-series transmissions, specifically the WG100, WG130, and WG131 models. It also fits select HL 100 Series and HL 270 Series gearboxes where the input spline configuration matches. For applications in WG180 or WG200 units, verify the spline count and pilot bearing diameter against your existing shaft before ordering.

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