ZF 4661.172.024 COUPLING for WG 90/WG 94 | OEM Genuine Part

Overview

The ZF 4661.172.024 COUPLING is a critical driveline component engineered specifically for the WG 90 and WG 94 transmission series. This OEM genuine part serves as the primary torque-transfer interface between the engine output and the transmission input shaft, ensuring smooth power delivery and torsional vibration dampening. Positioned within the bell housing assembly, the coupling directly interfaces with the 4661101024: TRANSMISSION HOUSING and the 4661301054: HOUSING II to maintain precise axial alignment. The SKU 4661.172.024 is manufactured to ZF’s original equipment tolerances, guaranteeing a direct fit without modification.

Symptoms of Failure

• Torque converter shudder or vibration at low RPM: A worn 4661.172.024 coupling loses its dampening capacity, causing noticeable driveline shudder during acceleration from a stop.
• Transmission fluid contamination with metallic debris: As the coupling splines wear, fine metal particles enter the hydraulic circuit, often detected during routine oil analysis.
• Intermittent gear engagement delay or “clunking”: Excessive play in the coupling creates a momentary lag between engine speed and transmission response, accompanied by audible metallic impacts.
• Oil seepage at the bell housing joint: A degraded coupling can compromise the seal interface with the 0631306174: CYLINDRICAL PIN, leading to external fluid leaks.

Technical Specifications

Compatibility

This coupling is designed for the ZF WG 94 series transmissions, including models WG 94, WG 94-2, and WG 94-3. It is also backward-compatible with the WG 90 series (WG 90, WG 90-1) when used with the appropriate 0769123894: TYPE PLATE for identification. The part fits commercial vehicles, construction equipment, and marine applications utilizing these ZF power shift transmissions. For WG180, WG200, or WG250 series, consult the ZF parts catalog for the corresponding coupling variant.

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