ZF 2098.309.032 DIFFERENTIAL BEVEL GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2098.309.032 DIFFERENTIAL BEVEL GEAR is a precision-engineered component designed for the differential assembly within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part transfers torque from the driveshaft to the axle shafts, enabling smooth power distribution while allowing wheel speed differentiation during turns. As a critical element of the final drive, the SKU 2098.309.032 meshes directly with the CROWN WHEEL and works in concert with the DIFFERENTIAL assembly to manage load balance. Manufactured to ZF’s exacting tolerances, this bevel gear ensures minimal backlash and extended service life in heavy-duty applications.

Symptoms of Failure

• Whining or howling noise during turns: Worn teeth on the bevel gear create excessive gear mesh noise, especially when cornering under load.
• Vibration in the driveline: Uneven wear or pitting on the gear surface causes noticeable shuddering through the chassis at highway speeds.
• Metal debris in differential oil: Flaking or chipped gear teeth contaminate the lubricant, visible as metallic particles during oil changes.
• Intermittent wheel lockup or slipping: Severe wear can cause the gear to skip, leading to unpredictable traction and potential axle damage.

Technical Specifications

Compatibility

This differential bevel gear is engineered for ZF WG-series transmissions, specifically the WG100, WG130, and WG131 models. It is also compatible with certain variants of the WG180 and WG200 series when used in conjunction with the DIFFERENTIAL HOUSING and the DIFFERENTIAL unit. Always verify your transmission’s serial number and final drive ratio before installation. For optimal performance, pair this gear with the matching crown wheel and thrust washers to maintain proper preload.

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