ZF 2094.104.011 MAIN SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2094.104.011 MAIN SHAFT is a critical rotating component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part transmits torque from the input shaft to the gear sets, ensuring precise power delivery through the countershaft assembly. Located centrally within the TRANSMISSION HOUSING, the main shaft supports the sliding gears and synchronizers that determine gear selection. The SKU 2094.104.011 is machined from high-strength alloy steel to withstand torsional loads and cyclic stress in heavy-duty commercial applications.

Symptoms of Failure

• Gear grinding or hard shifting: Worn splines on the main shaft prevent smooth engagement of sliding gears, causing audible grinding during gear changes.
• Vibration under load: A bent or fatigued main shaft produces noticeable driveline vibration, especially in 3rd or 4th gear, indicating imminent failure.
• Oil leaks near the output flange: Excessive shaft wear damages the sealing surface, allowing transmission fluid to escape past the SHAFT SEAL.
• Intermittent power loss: Stripped or cracked splines cause torque slip between the main shaft and gear hubs, resulting in erratic acceleration.

Technical Specifications

Compatibility

This main shaft is specifically designed for ZF WG100, WG130, and WG131 transmissions. It also fits select variants of the WG180 and WG200 series when used with the correct HOUSING and HOUSING assemblies. Always verify the shaft length and spline count against your transmission’s service manual. The COVER and associated gaskets must be replaced concurrently to maintain proper alignment.

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