ZF 2094.310.078 GEAR for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2094.310.078 GEAR (SKU: 2094.310.078) is a precision-engineered helical gear designed for the intermediate shaft assembly within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part directly transfers torque from the input shaft to the output shaft, ensuring smooth power delivery under heavy loads. It sits in the lower gear train housing, meshing with the main drive gear to maintain correct gear ratios. For optimal alignment, this gear works in conjunction with the 2094101012: TRANSMISSION HOUSING and the 2094301036: HOUSING, which provide the structural support necessary to prevent axial play.

Symptoms of Failure

• Whining or grinding noise during gear engagement: Worn gear teeth create a high-pitched whine, especially under acceleration or deceleration, indicating tooth surface fatigue.
• Intermittent gear slipping under load: When the gear loses its tooth profile, the transmission may momentarily slip out of gear, causing a loss of drive power on inclines.
• Metal particles in transmission fluid: Flaking or pitting of the gear surface releases metallic debris into the oil, often visible during fluid changes as glitter-like particles.
• Hard shifting or delayed engagement: Damaged gear teeth prevent smooth meshing, leading to a clunky shift feel and delayed response when moving from neutral to drive.

Technical Specifications

Compatibility

This gear is engineered specifically for ZF WG-series transmissions. It is a direct fit for the WG100, WG130, and WG131 models. It also shares compatibility with the WG180 and WG200 series when used in the secondary gear train. Always verify the tooth profile and shaft spline count before installation. The gear interfaces with the 2094298057: HOUSING and is sealed by the 2094301071: COVER to prevent lubricant leakage.

Related Components

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“name”: “What are the signs that the ZF 2094.310.078 gear needs replacement?”,
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“text”: “Common signs include a whining noise during acceleration, metal particles in the transmission fluid, and intermittent gear slipping under heavy load. These symptoms indicate tooth wear or pitting.”
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“name”: “Can the 2094.310.078 gear be used in WG180 transmissions?”,
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“text”: “Yes, it is compatible with WG180 and WG200 series when used in the secondary gear train. Always confirm tooth count and shaft spline dimensions before installation.”
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“text”: “We recommend replacing the shaft seal (0750111371), O-ring (0634303085), and gasket (2094301030) to ensure proper sealing and prevent oil leaks after gear replacement.”
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