ZF 2094.310.101 SPUR GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2094.310.101 SPUR GEAR is a critical power transmission component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part, identified by SKU 2094.310.101, functions as the primary drive gear within the intermediate shaft assembly, transferring torque from the input shaft to the output shaft through a constant mesh configuration. Precision-ground tooth profiles ensure minimal backlash and optimal load distribution, directly influencing shift quality and overall driveline efficiency. When installed alongside the 2094101017 TRANSMISSION HOUSING, this spur gear maintains correct axial alignment, while the 2094301069 HOUSING provides the necessary bearing support for sustained high-torque operation.

Symptoms of Failure

• Whining or howling noise during acceleration: Worn gear teeth create uneven contact patterns, producing a distinct metallic whine that intensifies under load. This is a common symptom when the 2094.310.101 spur gear loses its surface hardness.
• Transmission gear slipping under heavy torque: As the spur gear’s tooth profile degrades, the mesh between mating gears becomes inconsistent, causing intermittent power loss or “slipping” during uphill climbs or towing.
• Metal particles in transmission fluid: Flaking or pitting on the gear’s flank surfaces introduces ferrous debris into the oil system. This contamination often accelerates wear on the 0636302008 SCREW PLUG sealing surfaces and can block oil galleries.
• Vibration at specific RPM ranges: Uneven tooth wear or a chipped tooth creates rotational imbalance, felt as a rhythmic vibration through the gearshift lever or chassis at highway speeds.

Technical Specifications

Compatibility

This spur gear is specifically designed for ZF’s WG-series industrial transmissions. Verified compatibility includes the WG100, WG130, and WG131 models. It also fits select variants of the WG180 and WG200 series when used in conjunction with the correct 2094298054 HOUSING assembly. Always confirm the transmission serial number against the OEM parts catalog before installation. The gear interfaces directly with the countershaft cluster and requires proper shimming via the 2094301071 COVER to maintain correct end-play tolerances.

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