ZF 2094.104.418 MAIN SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2094.104.418 MAIN SHAFT is a critical rotating component engineered for the WG100, WG130, and WG131 series transmissions. As the primary torque-transfer element, this OEM genuine part connects the input drive to the gear sets, ensuring precise power delivery under heavy industrial loads. The SKU 2094.104.418 is machined to exact ZF tolerances, serving as the central axis around which the planetary gears and clutches rotate. It interfaces directly with the TRANSMISSION HOUSING and the HOUSING assembly, providing the structural backbone for the entire gear train.

Symptoms of Failure

• Transmission gear slipping under load: A worn main shaft loses its spline engagement, causing intermittent power loss during acceleration or uphill operation.
• Excessive axial play or vibration: Bearing seat wear on the shaft leads to noticeable driveline shudder, especially at highway speeds.
• Oil contamination with metallic debris: Flaking or pitting on the shaft surface introduces steel particles into the hydraulic circuit, often visible during oil changes.
• Difficult gear engagement or grinding noises: Misalignment from a bent or fatigued main shaft prevents smooth synchronization between the HOUSING components and the clutch packs.

Technical Specifications

Compatibility

This main shaft is specifically designed for the ZF WG100, WG130, and WG131 transmission families. It is also compatible with select WG180 and WG200 variants that share the same spline geometry and bearing journal spacing. Always verify the serial number against your transmission tag. When replacing this shaft, we recommend inspecting the COVER for wear, as misalignment here can accelerate shaft fatigue.

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