ZF 2094.311.055 PLANETARY GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2094.311.055 PLANETARY GEAR is a critical torque-multiplying component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part sits within the planetary gearset assembly, directly transferring rotational force from the input shaft to the output shaft while managing load distribution across multiple pinions. As a high-precision gear, the SKU 2094.311.055 ensures smooth power flow and minimal backlash, operating in conjunction with the 2094101012: TRANSMISSION HOUSING to maintain structural integrity under heavy-duty cycles.

Symptoms of Failure

• Whining or grinding noise during gear engagement – Worn planetary teeth produce a distinct metallic sound, often misdiagnosed as bearing failure.
• Erratic shifting or gear slippage under load – Damaged gear surfaces cause intermittent power loss, especially when climbing grades or towing.
• Metallic debris in transmission fluid – Flaking or pitting on the planetary gear releases fine steel particles, visible during oil changes.
• Vibration at specific RPM ranges – Uneven wear creates harmonic imbalances, felt through the chassis at highway speeds.

Technical Specifications

Compatibility

This planetary gear is specifically designed for ZF WG100, WG130, and WG131 transmissions used in medium-duty trucks, buses, and construction equipment. It is not compatible with WG180 or WG200 series due to different tooth profiles and carrier dimensions. Always verify your transmission model tag before ordering. The gear interfaces directly with the 2094301036: HOUSING and the 2094298057: HOUSING to form the sealed gearset chamber.

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