ZF 4108.302.201 PLANETARY GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4108.302.201 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 carrier while managing speed reduction. The SKU 4108.302.201 is precision-machined to maintain exact gear mesh alignment, ensuring smooth power flow under heavy loads. When installed alongside the 4108101074: HOUSING and the 4108201252: HOUSING, this planetary gear forms the core of the transmission’s reduction unit.

Symptoms of Failure

• Audible whining or grinding during gear engagement: Worn planetary gear teeth produce a distinct high-pitched noise, especially when shifting under load. This is a common search query for “ZF transmission whining noise fix.”
• Intermittent gear slipping under acceleration: As the planetary gear loses tooth profile integrity, the transmission may momentarily lose torque transfer, causing a slipping sensation. This matches “planetary gear slipping symptoms WG130.”
• Metallic debris in transmission fluid: Flaking or pitting on the gear surface introduces fine metal particles into the oil, often visible during fluid changes. This aligns with “metal shavings in ZF transmission oil.”
• Vibration at specific RPM ranges: Unbalanced planetary gears create harmonic vibrations that resonate through the driveline, typically between 1500-2500 RPM.

Technical Specifications

Compatibility

This planetary gear is designed exclusively for ZF WG-series transmissions. Confirmed compatible models include the WG100, WG130, and WG131. It may also be used in certain WG180 and WG200 variants where the planetary carrier assembly shares identical tooth geometry. Always verify the 0730365280: TYPE PLATE on your transmission housing to confirm model designation before ordering. The gear interfaces directly with the 4108301304: BEARING COVER and requires a fresh 4108306173: GASKET during reassembly to prevent oil leaks.

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