ZF 2095.104.007 MAIN SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2095.104.007 MAIN SHAFT is a critical torque-transferring component positioned within the main drive train of ZF WG-series transmissions. As the central rotating axis, this OEM genuine part transmits engine power from the input shaft through the gear sets to the output flange. The SKU 2095.104.007 is engineered to precise OEM tolerances, ensuring minimal runout and optimal load distribution across the planetary gear assemblies. This main shaft directly interfaces with the 5838109007: DIFFERENTIAL assembly, where it transfers rotational force into the final drive unit. Without a properly functioning main shaft, the entire transmission system loses its structural integrity and power delivery capability.

Symptoms of Failure

• Vibration under load during gear engagement: A worn main shaft develops surface pitting or spline wear, causing noticeable driveline shudder when accelerating or climbing grades.
• Intermittent gear slipping or loss of drive: As the shaft splines degrade, the mating gears lose positive engagement, resulting in sudden power loss or “neutraling out” during operation.
• Metallic debris in transmission fluid: Flaking or spalling on the shaft surface contaminates the oil, often visible as silver particles during routine fluid changes or filter inspections.
• Audible knocking or clunking from the transmission housing: Excessive radial play in the main shaft bearings produces a repetitive metallic noise, especially when shifting between forward and reverse.

Technical Specifications

Compatibility

This ZF 2095.104.007 MAIN SHAFT is designed for use in the following ZF transmission models: WG100, WG130, and WG131. It is also compatible with select variants of the WG180 and WG200 series where the main shaft length and spline configuration match. Always verify the transmission serial number against OEM documentation before installation. During rebuild, this shaft should be inspected alongside the 0750117075: TAPER ROLLER BEARING which supports the shaft’s axial and radial loads, and the 2095209019: DIFFERENTIAL which receives power from this shaft. The 0631329086: SPRING PIN is also required to secure the shaft’s retaining collar during final assembly.

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