ZF 4472.239.171 SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4472.239.171 SHAFT is a precision-machined component engineered for the internal power flow within ZF WG100, WG130, and WG131 transmissions. This genuine OEM part serves as the primary rotational axis for gear clusters, ensuring torque is transferred smoothly from the input to the output section of the gearbox. The SKU 4472.239.171 is specifically designed to interface with planetary gear sets and differential assemblies, maintaining correct gear mesh alignment under heavy load. Without this shaft, the transmission cannot maintain its gear ratio integrity, making it a critical element for driveline reliability in industrial vehicles and heavy machinery.

Symptoms of Failure

• Whining or grinding noise during gear engagement: A worn 4472.239.171 shaft often produces a high-pitched whine or metallic grinding sound when the transmission is under load, particularly in lower gears. This noise indicates excessive play between the shaft and its mating gears.
• Intermittent gear slipping under heavy torque: When the shaft surface wears or develops scoring, it can cause the gear hubs to lose their press-fit tolerance, leading to sudden slipping or loss of drive power during acceleration or uphill operation.
• Metallic debris in transmission fluid: Flaking or spalling on the shaft surface introduces fine metal particles into the oil system. This contamination often accelerates wear on adjacent components like the 0750117075: TAPER ROLLER BEARING and other rotating elements.
• Vibration at specific RPM ranges: A bent or unbalanced shaft creates harmonic vibrations that are felt through the vehicle chassis, typically worsening as the transmission warms up and oil viscosity drops.

Technical Specifications

Compatibility

This genuine ZF shaft is specifically engineered for the WG100, WG130, and WG131 transmission series. These models are commonly found in mid-range industrial forklifts, telescopic handlers, and municipal utility vehicles. While the shaft is not directly compatible with the larger WG180 or WG200 series due to differing bearing journal dimensions, it shares the same spline geometry as the differential input shafts in its class. For complete driveline restoration, this shaft is frequently paired with the 5838109007: DIFFERENTIAL and the 2095209019: DIFFERENTIAL assembly. The shaft also requires proper retention via the 0631329086: SPRING PIN to prevent axial movement during operation.

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