ZF 4616.308.009 GEAR for WG65 | OEM Genuine Part

Overview

The ZF 4616.308.009 GEAR is a precision-engineered component designed for the WG 65 Series transmission family. This gear sits within the planetary gearset assembly, where it facilitates torque transfer and speed reduction during operation. As an OEM genuine part, SKU 4616.308.009 ensures exact fitment and metallurgical consistency with the original transmission design, minimizing wear on adjacent components such as the TRANSMISSION HOUSING and supporting fasteners. This gear is critical for maintaining smooth power flow under heavy-duty industrial loads.

Symptoms of Failure

When the ZF 4616.308.009 GEAR begins to degrade, operators may notice distinct performance issues. Common failure symptoms include:

• Gear slipping under load — The transmission may momentarily lose torque during acceleration or incline climbing, often accompanied by a grinding noise.
• Metallic debris in transmission fluid — Worn gear teeth shed particles that contaminate the oil, visible during routine fluid changes.
• Abnormal whining or chattering sounds — High-frequency noise from the gear mesh area indicates uneven tooth contact or pitting.
• Oil leaks near the gear housing interface — Excessive vibration from a failing gear can loosen adjacent seals, causing fluid seepage around the HEXAGON SCREW and HEXAGON SCREW fasteners.

Technical Specifications

Compatibility

This gear is engineered for the ZF WG 65 Series transmissions, specifically models WG65, WG80, and WG100. It also fits select variants of the WG120 and WG150 where the planetary gearset shares identical tooth geometry. Always verify the gear ratio and spline count against your transmission’s service manual before installation. For secure mounting, use the HEXAGON SCREW to torque the gear to the shaft assembly.

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