ZF 4461.351.022 AXLE BEVEL GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4461.351.022 AXLE BEVEL GEAR is a critical power-transfer component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part sits within the differential assembly, converting rotational input from the driveshaft into a 90-degree angle to drive the axle shafts. Precision-ground teeth ensure smooth torque delivery and minimal backlash. The SKU 4461.351.022 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged gears in heavy-duty industrial drivelines. When installed alongside a properly sealed 4143101009: HOUSING, this bevel gear maintains optimal gear mesh alignment under high-load conditions.

Symptoms of Failure

• Whining or howling noise from the axle during acceleration: Worn gear teeth create irregular contact patterns, producing a distinct high-pitched sound that intensifies with speed.
• Vibration in the driveline under load: Excessive play in the bevel gear set causes driveline shudder, often misdiagnosed as a bearing issue.
• Metal particles in transmission fluid: Flaking or pitting on the gear surface sheds metallic debris, which can clog the 4143221013: THROTTLE VALVE and reduce hydraulic efficiency.
• Intermittent loss of drive torque: Stripped or chipped teeth cause momentary slippage, especially when turning or climbing grades.

Technical Specifications

Compatibility

This bevel gear is specifically designed for ZF WG-series transmissions with a 1:3.42 final drive ratio. Verified compatible models include:

• ZF WG100 (all sub-variants)
• ZF WG130 (standard and heavy-duty)
• ZF WG131 (with integrated differential lock)

For proper installation, always replace the 0634313603: O-RING and 4475280018: SCREW PLUG to prevent fluid ingress. The gear set also requires a new 4143301025: HOUSING if the original shows scoring or warpage.

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