ZF 2098.309.030 AXLE BEVEL GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2098.309.030 AXLE BEVEL GEAR is a precision-engineered component designed for the final drive assembly of ZF WG100, WG130, and WG131 transmissions. This OEM genuine part transfers rotational power from the differential to the axle shafts, enabling smooth torque distribution to the wheels. The SKU 2098.309.030 sits within the axle housing, meshing directly with the CROWN WHEEL to convert drive shaft rotation into axle motion. Manufactured to ZF’s exacting tolerances, this bevel gear ensures minimal backlash and optimal gear contact patterns, critical for heavy-duty industrial applications where load consistency is paramount.

Symptoms of Failure

• Whining or howling noise during turns: Worn gear teeth create irregular contact patterns, producing a distinct high-pitched whine when the vehicle corners under load.
• Vibration in the driveline at low speeds: Excessive play between the axle bevel gear and the DIFFERENTIAL HOUSING causes rhythmic shuddering, especially during acceleration from a stop.
• Oil leaks near the axle flange: Degraded gear surfaces can generate heat, compromising seals and leading to lubricant seepage around the housing joint.
• Intermittent loss of traction: Chipped or spalled teeth on the 2098.309.030 cause the differential to slip, resulting in uneven wheel spin on slick surfaces.

Technical Specifications

Compatibility

This axle bevel gear is engineered specifically for ZF WG-series transmissions, including 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 assembly. For applications requiring a matched set, pair this gear with the AXLE BEVEL GEAR (part 2098309031) or the DIFFERENTIAL unit (part 2099209001). Always verify the housing clearance using the THRUST WASHER and ADJUSTMENT PLATE to ensure proper preload.

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