ZF 4661.173.001 COUPLING for WG 90/WG 94 | OEM Genuine Part

Overview

The ZF 4661.173.001 COUPLING is a critical torque-transfer component engineered specifically for the WG 90 and WG 94 series transmissions. This OEM genuine part serves as the mechanical link between the engine output and the transmission input shaft, ensuring smooth power delivery and dampening torsional vibrations. Positioned directly within the driveline assembly, the SKU 4661.173.001 interfaces seamlessly with the 4661101004: TRANSMISSION HOUSING and the 4661301004: HOUSING to maintain precise alignment and load distribution. As a genuine ZF part, it guarantees factory-specified tolerances and material integrity for heavy-duty industrial applications.

Symptoms of Failure

• Transmission shudder during acceleration: A worn coupling often causes noticeable vibration or shuddering when the vehicle or equipment is under load, especially at low speeds.
• Oil leaks near the bell housing: Degraded seals or coupling wear can allow transmission fluid to escape, leaving visible drips or puddles beneath the driveline connection point.
• Intermittent gear slipping or delayed engagement: As the coupling loses its damping capacity, you may experience hesitation when shifting between forward and reverse gears.
• Metallic rattling noises from the transmission area: Excessive play in the coupling can produce a distinct clattering sound, particularly during idle or coasting.

Technical Specifications

Compatibility

This coupling is designed for the ZF WG 90 and WG 94 series transmissions, which are widely used in off-highway vehicles, construction equipment, and industrial machinery. It is also compatible with the WG180 and WG200 models when used with the appropriate 4661301093: TUBE and 0631306174: CYLINDRICAL PIN for secure mounting. Always verify your transmission model and housing configuration before installation.

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