ZF 4616.308.112 GEAR for WG65 | OEM Genuine Part

Overview

The ZF 4616.308.112 GEAR is a precision-engineered component specifically designed for the WG 65 Series transmission. This helical gear plays a critical role in the power transfer assembly, meshing directly with the countershaft to manage torque distribution and rotational speed within the gear train. As an OEM genuine part, the 4616.308.112 ensures exact tolerances and material hardness required for heavy-duty industrial applications. When installed alongside the 4616105415: OUTPUT and the 4616101094: TRANSMISSION HOUSING, this gear maintains the structural integrity of the driveline, reducing vibration and preventing premature wear on adjacent components.

Symptoms of Failure

• Whining or grinding noise during gear engagement: A worn 4616.308.112 gear will produce a high-pitched whine under load, often mistaken for bearing failure. This indicates tooth surface pitting or misalignment.
• Intermittent gear slipping under heavy torque: If the gear teeth have lost their hardened surface, the transmission may momentarily lose power transfer, especially when climbing or hauling heavy loads.
• Metallic debris in the transmission fluid: Flakes or silver particles in the oil filter or drain plug signal that the gear surface is spalling. This can quickly damage the 4616303144: OUTPUT FLANGE and other rotating assemblies.
• Excessive backlash or play in the driveline: As the gear wears, the clearance between meshing teeth increases, causing a noticeable clunk when shifting between forward and reverse.

Technical Specifications

Compatibility

This gear is engineered for the ZF WG 65 Series transmission family. Based on its tooth profile and spline dimensions, the 4616.308.112 is compatible with the following models: WG65, WG80, WG100, WG120, WG150, WG180, and WG200. It is a direct replacement for the original equipment gear in these units. For proper installation, always pair this gear with a new 0636011038: HEXAGON SCREW to secure the assembly to the shaft, and inspect the TRANSMISSION HOUSING for cracks or wear.

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