ZF 2098.304.107 SPUR GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2098.304.107 SPUR GEAR is a precision-engineered component designed for the power transfer assembly within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part (SKU: 2098.304.107) functions as a critical intermediary gear, meshing directly with the input shaft and the differential assembly to modulate torque distribution. It sits within the gear train housing, ensuring smooth rotational energy flow from the engine to the drive axles. Manufactured to exacting ZF tolerances, this spur gear is essential for maintaining proper gear mesh alignment and load-bearing capacity in heavy-duty industrial applications.

Symptoms of Failure

• Whining or grinding noise during acceleration: A worn 2098.304.107 spur gear often produces a high-pitched whine or metallic grinding sound, particularly when the transmission is under load. This indicates tooth surface degradation or pitting.
• Intermittent gear slipping under heavy load: As the spur gear teeth wear unevenly, you may experience sudden loss of torque transfer, causing the transmission to slip out of gear momentarily during uphill climbs or towing operations.
• Metal debris in transmission fluid: Flakes or fine metallic particles found during routine oil changes are a clear sign that the spur gear’s hardened surface is failing, leading to contamination of the entire lubrication system.
• Vibration in the driveline at specific RPMs: A damaged spur gear creates harmonic vibrations that resonate through the chassis, often felt in the gearshift lever or floorboard between 1500-2500 RPM.

Technical Specifications

Compatibility

This ZF 2098.304.107 spur gear is specifically engineered for the following transmission models: WG100, WG130, and WG131. It is a direct replacement for OEM assemblies in these series. While primarily designed for these three models, it may also be compatible with select variants of the WG180 and WG200 series where the gear train architecture matches the 37-tooth configuration. Always verify your transmission’s serial number against the original parts catalog before installation. This gear works in concert with the 2098109042 DIFFERENTIAL and the 2098309011 CROWN WHEEL to form the final drive assembly. For complete rebuilds, pair it with the 2099209001 DIFFERENTIAL and the 2098309010 DIFFERENTIAL HOUSING to ensure optimal gear mesh and load distribution.

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