ZF 2095.103.008 COUNTERSHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2095.103.008 COUNTERSHAFT is a critical rotating component engineered for the WG100, WG130, and WG131 heavy-duty transmission series. As the primary torque-transfer interface between the input shaft and the output gear train, this OEM genuine shaft ensures precise gear alignment and load distribution under extreme operating conditions. The SKU 2095.103.008 is machined from case-hardened alloy steel to withstand continuous high-torque applications in construction, mining, and agricultural machinery. When installed, it works in concert with the 5838109007: DIFFERENTIAL to manage power flow, while the 0750117075: TAPER ROLLER BEARING supports its axial and radial loads. The countershaft also interfaces directly with the 2095209019: DIFFERENTIAL assembly for final drive synchronization.

Symptoms of Failure

• Persistent gear whine or grinding noise during acceleration or deceleration, indicating worn splines or bearing journals on the countershaft.
• Intermittent gear slipping under load — the transmission loses torque momentarily, often caused by a cracked or fatigued countershaft that cannot maintain proper gear mesh.
• Metallic debris in transmission oil — fine steel particles or chips found during oil changes signal surface spalling or pitting on the countershaft’s hardened flanks.
• Vibration through the driveline at specific RPM ranges, a classic sign of a bent or unbalanced countershaft that accelerates bearing and seal wear.

Technical Specifications

Compatibility

This countershaft is specifically designed for the ZF WG100, WG130, and WG131 series transmissions. It is also compatible with the WG180 and WG200 variants when used in conjunction with the correct 0631329086: SPRING PIN for alignment. For WG250 and WG300 models, verify spline engagement before installation. The part is not interchangeable with earlier WG80 or WG90 series shafts due to differing bearing seat dimensions.

Related Components