ZF 2095.103.011 COUNTERSHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2095.103.011 COUNTERSHAFT is a critical OEM genuine component engineered for the WG100, WG130, and WG131 transmission series. This precision-machined shaft transfers rotational power from the input gearset to the output assembly, ensuring synchronized torque distribution across the driveline. As a central element in the countershaft cluster, it directly interacts with the 5838109006: DIFFERENTIAL to modulate gear ratios under heavy loads. The SKU 2095.103.011 is manufactured to ZF’s exacting tolerances, guaranteeing seamless integration with OEM housings and bearing seats.

Symptoms of Failure

• Persistent gear whine under load: Worn splines or bearing journals on the countershaft produce a high-pitched noise during acceleration, often misdiagnosed as differential failure.
• Intermittent gear slipping in 3rd/4th: Fatigue cracks or pitting on the shaft surface cause the 0750117075: TAPER ROLLER BEARING to lose preload, leading to erratic engagement.
• Metallic debris in transmission oil: Flaking from the countershaft’s hardened surface contaminates the lubricant, accelerating wear on the 2095209037: DIFFERENTIAL and adjacent gears.
• Vibration at highway speeds: Bent or unbalanced shafts create harmonic oscillations that resonate through the 2095309059: DIFF.HOUSING, often mistaken for driveline imbalance.

Technical Specifications

Compatibility

This countershaft is specifically designed for ZF’s WG-series modular transmissions. Verified fitment includes WG100, WG130, and WG131 models used in medium-duty trucks, buses, and off-highway equipment. It is not compatible with WG180 or WG200 variants without modification to the bearing carrier. Always verify the shaft’s spline count against your existing assembly—the 2095.103.011 uses a 23-tooth input spline.

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