ZF 4108.303.261 SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4108.303.261 SHAFT is a critical torque-transmitting component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part serves as the primary rotational axis within the gear train, ensuring precise power delivery from the input to the output assembly. The SKU 4108.303.261 is machined to exacting tolerances to maintain gear alignment and reduce vibrational stress. It interfaces directly with the 4108101076: HOUSING and the 4108201217: HOUSING, forming the structural backbone of the transmission’s rotating group.

Symptoms of Failure

When the ZF 4108.303.261 SHAFT begins to degrade, operators will notice distinct operational anomalies. Gear slipping under load is a primary indicator, often accompanied by a metallic grinding noise during shifts. Another common failure symptom is excessive axial play at the output flange, which can lead to oil seepage around the bearing cover. If the shaft splines wear unevenly, you may experience intermittent power loss during acceleration. These issues typically worsen over time, making early diagnosis critical to avoid secondary damage to the 4108301304: BEARING COVER and adjacent seals.

Technical Specifications

Compatibility

This shaft is specifically designed for the ZF WG100, WG130, and WG131 transmission models. It is also compatible with the WG180 and WG200 series when used in conjunction with the correct 4108306173: GASKET kit. The part fits both standard and heavy-duty configurations found in commercial trucks, buses, and off-highway equipment. Always verify the transmission serial number before installation to ensure proper spline engagement with the mating gears.

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