ZF 4108.211.010 BEVEL GEAR SET for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4108.211.010 BEVEL GEAR SET is a precision-engineered OEM genuine component designed for the input and countershaft power transfer within ZF WG100, WG130, and WG131 transmissions. This matched set of spiral bevel gears is responsible for redirecting torque from the engine to the planetary gear sets, ensuring smooth and efficient power delivery in heavy-duty industrial drivetrains. As a critical wear item, the SKU 4108.211.010 must be replaced as a matched pair to maintain correct tooth contact patterns and prevent premature failure. This gear set interfaces directly with the 4108101057: HOUSING and the 4108201177: HOUSING, which support the bearing bores and maintain proper gear alignment.

Symptoms of Failure

• Whining or howling noise during acceleration: Worn bevel gear teeth create a distinct high-pitched whine that increases with load, indicating improper tooth mesh or pitting on the gear flanks.
• Vibration in the transmission housing: As the gear set loses its precise lapped contact pattern, vibrations transmit through the 4108301304: BEARING COVER and into the main casing, often felt as a shudder during deceleration.
• Metallic debris in the oil pan: Flaking or spalling of the case-hardened gear surfaces produces fine steel particles that contaminate the lubricant, accelerating wear on adjacent components like the 0636302056: SCREW PLUG sealing points.
• Backlash increase beyond specification: Excessive clearance between the bevel gear teeth leads to a clunking sensation when shifting between forward and reverse, often accompanied by oil seepage past the shaft seals.

Technical Specifications

Compatibility

This bevel gear set is engineered for ZF industrial transmissions in the WG series. It is a direct OEM fit for the following models:

• ZF WG100 – Standard duty, 100 mm center distance
• ZF WG130 – Medium duty, 130 mm center distance
• ZF WG131 – Heavy-duty variant with reinforced housing

While primarily designed for the above, the 4108.211.010 may also be compatible with select WG180 and WG200 applications when used with the correct 4108306173: GASKET and 0750110040: SHAFT SEAL. Always verify tooth count and backlash specifications against your transmission’s service manual before installation.

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