ZF 2095.318.012 INPUT SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2095.318.012 INPUT SHAFT is a critical power-transfer component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part transmits torque directly from the engine to the gear train, ensuring precise rotational force distribution within the planetary gear set. As a primary load-bearing shaft, it interfaces with the 2095109020: DIFFERENTIAL assembly to manage power flow under heavy-duty conditions. The SKU 2095.318.012 is manufactured to ZF’s exacting tolerances, featuring hardened alloy steel construction that resists torsional fatigue and surface wear during continuous commercial operation.

Symptoms of Failure

• Audible gear whine during acceleration: Worn splines on the 2095.318.012 input shaft cause irregular meshing with the 2095209037: DIFFERENTIAL gears, producing a high-pitched metallic noise under load.
• Transmission slipping in forward gears: Progressive wear on the shaft’s bearing journals reduces rotational stability, leading to intermittent power loss and gear disengagement.
• Metal particles in transmission fluid: Surface spalling or pitting on the input shaft releases ferrous debris into the oil, often visible during routine fluid changes.
• Vibration at highway speeds: A worn 0750117075: TAPER ROLLER BEARING seat on the shaft creates radial play, causing driveline shudder that intensifies with RPM.

Technical Specifications

Compatibility

This input shaft is specifically designed for ZF WG100, WG130, and WG131 transmissions found in medium-duty trucks, buses, and construction equipment. It directly replaces the original shaft in these models and works in conjunction with the 2095309059: DIFF.HOUSING to maintain proper gear alignment. While primarily for WG-series units, it may also fit select WG180 and WG200 variants with identical spline configurations—always verify your transmission’s serial number before ordering.

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