ZF 2095.204.012 MAIN SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2095.204.012 MAIN SHAFT is a critical torque-transmitting component engineered for the WG100, WG130, and WG131 series transmissions. Positioned as the central rotating axis within the gear cluster, this OEM genuine part transfers engine power from the input shaft to the output flange while supporting the planetary gear sets. The SKU 2095.204.012 is precision-machined to maintain concentricity under heavy loads, ensuring smooth power delivery in commercial vehicles and industrial machinery. When paired with a properly functioning 5838109021: DIFFERENTIAL, this main shaft enables reliable torque distribution across the driveline.

Symptoms of Failure

• Transmission gear slipping under load — A worn main shaft spline engagement causes intermittent power loss, especially during uphill climbs or heavy hauling.
• Vibration or driveline shudder — Excessive radial play in the shaft leads to harmonic oscillations felt through the chassis at highway speeds.
• Metallic grinding noise from the gearbox — Surface fatigue on the shaft journals creates audible friction against the 0750117075: TAPER ROLLER BEARING, producing a distinct growling sound.
• Oil contamination with metallic debris — Flaking material from a fatigued shaft mixes with transmission fluid, visible during routine drain intervals.

Technical Specifications

Compatibility

This main shaft is specifically designed for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It also fits select variants of the WG180 and WG200 series when used with the correct 2095209019: DIFFERENTIAL assembly. For proper installation, always replace the 0631329086: SPRING PIN that secures the shaft to the planetary carrier. Verify your transmission model number before ordering to ensure spline count alignment.

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