ZF 2094.304.028 GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2094.304.028 GEAR is a precision-machined helical gear designed for the auxiliary drive and countershaft assembly in ZF WG100, WG130, and WG131 transmissions. This OEM genuine part transmits torque from the input shaft to the main shaft cluster, ensuring smooth power flow during gear engagement. The SKU 2094.304.028 is positioned directly on the intermediate shaft, where it meshes with the main shaft gear train to support both forward and reverse gear ratios. Without this gear, the transmission cannot transfer engine power to the driveline, making it a critical component for heavy-duty industrial vehicles.

Symptoms of Failure

• Whining or grinding noise during acceleration: Worn gear teeth on the 2094.304.028 produce a high-pitched whine that intensifies under load, often mistaken for bearing failure.
• Intermittent gear slippage in higher ranges: As the gear surface wears, the transmission may momentarily lose torque transfer, causing the vehicle to surge or hesitate during shifts.
• Metallic debris in transmission fluid: Flaking or pitting on the gear face sheds fine metal particles into the oil, visible during routine fluid changes.
• Hard shifting or gear clash: Damaged tooth profiles prevent smooth engagement with the 2094104412: MAIN SHAFT, leading to audible clash when moving from neutral to drive.

Technical Specifications

Compatibility

This gear is engineered for ZF WG-series transmissions, specifically the WG100, WG130, and WG131 models. It also fits the WG180 and WG200 variants when used in the auxiliary drive position. The 2094.304.028 interfaces directly with the 2094304054: MAIN SHAFT and the 2094106010: SHIFT SYSTEM assembly. For proper installation, ensure the 2094206001: GEARSHIFT SHAFT is aligned correctly to prevent premature wear. This part is not compatible with ZF Ecomat or AS Tronic series transmissions.

Related Components

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