ZF 2095.104.011 MAIN SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2095.104.011 MAIN SHAFT is a critical torque-transmitting component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part serves as the primary rotational axis within the gear train, transferring engine power from the input shaft to the output assembly while maintaining precise gear alignment under heavy loads. The SKU 2095.104.011 is machined from high-tensile alloy steel to withstand the torsional stresses and fatigue cycles common in commercial vehicle applications. When paired with a properly functioning 5838109006: DIFFERENTIAL, this main shaft ensures smooth power distribution to the drive axles.

Symptoms of Failure

• Gear grinding or hard shifting: A worn main shaft spline or bearing journal causes misalignment, leading to audible grinding during gear engagement and difficulty selecting gears.
• Vibration under load: Excessive radial play from a fatigued shaft results in noticeable driveline vibration, especially when accelerating or climbing grades.
• Oil leaks near the transmission housing: A cracked or pitted shaft surface can damage the output seal, allowing transmission fluid to escape and contaminating the clutch area.
• Intermittent power loss: When the main shaft loses its heat-treated surface hardness, it may twist slightly under torque, causing temporary slippage between gears.

Technical Specifications

Compatibility

This main shaft is specifically designed for ZF WG100, WG130, and WG131 manual transmissions found in medium-duty trucks, buses, and off-highway equipment. It is not interchangeable with WG180 or WG200 series shafts due to differences in spline pitch and overall length. For optimal performance, always replace the 0750117075: TAPER ROLLER BEARING simultaneously, as bearing wear accelerates shaft degradation. The assembly also integrates with the 2095209037: DIFFERENTIAL and the 2095309059: DIFF.HOUSING to complete the driveline.

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