ZF 4108.301.434 INPUT SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4108.301.434 INPUT SHAFT is a critical torque-transfer component within the WG100, WG130, and WG131 transmission assemblies. As the primary interface between the engine’s clutch and the transmission gear train, this OEM genuine shaft transmits rotational force directly into the planetary gear sets. The SKU 4108.301.434 is precision-machined to ZF’s original specifications, ensuring exact spline engagement and minimal backlash. This input shaft sits at the front of the main housing, supported by bearings and sealed by the 4108301304: BEARING COVER, which protects the shaft from contamination and maintains proper lubrication within the 4108101103: HOUSING.

Symptoms of Failure

When the ZF 4108.301.434 input shaft begins to wear, operators will notice distinct operational issues. 1. Hard shifting or gear engagement delay occurs as worn splines fail to mesh cleanly with the clutch hub. 2. Vibration during acceleration is a common sign of shaft imbalance or bearing surface degradation. 3. Transmission fluid leaks near the bell housing often result from shaft seal wear, which can be exacerbated by a failing 4108306173: GASKET between the housing and cover. 4. Metallic debris in the oil pan indicates spline or journal surface spalling, requiring immediate replacement to prevent catastrophic failure of the 4108201256: HOUSING.

Technical Specifications

Compatibility

This input shaft is specifically engineered for ZF’s WG-series powershift transmissions. Primary compatibility includes the WG100, WG130, and WG131 models. It may also be suitable for certain WG180 and WG200 variants, though cross-referencing with the transmission serial number is recommended. The shaft interfaces directly with the 4108101103: HOUSING and requires the 4108306173: GASKET for proper sealing during installation. Always verify spline count and pilot bearing dimensions against your specific transmission model before ordering.

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