ZF 4661.176.007 COUPLING for WG 90/WG 94 | OEM Genuine Part

Overview

The ZF 4661.176.007 COUPLING is a critical torque-transfer component engineered specifically for the WG 90 and WG 94 transmission series. This OEM genuine part, identified by SKU 4661.176.007, sits between the engine flywheel and the transmission input shaft, acting as a flexible interface that absorbs torsional vibrations and compensates for minor misalignment. By maintaining precise rotational alignment, this coupling ensures smooth power delivery from the engine to the gearbox, reducing stress on the 4661101037: TRANSMISSION HOUSING and the 4661301099: HOUSING II. Without a properly functioning coupling, the entire driveline experiences excessive wear, leading to premature failure of surrounding assemblies.

Symptoms of Failure

• Torque fluctuation during acceleration: A worn coupling causes noticeable surging or hesitation when shifting from low to high gears, often described as “transmission jerking under load.”
• Metallic rattling from the bell housing: As the coupling’s elastomeric elements degrade, loose metal components strike the 0631306174: CYLINDRICAL PIN and housing walls, producing a distinct clattering sound at idle.
• Oil seepage near the input shaft seal: A failing coupling can distort the shaft alignment, breaking the seal integrity and causing transmission fluid to leak past the 0769123894: TYPE PLATE area.
• Vibration at highway speeds: Imbalance from a cracked coupling hub transmits through the driveline, creating a low-frequency shudder that worsens above 45 mph.

Technical Specifications

Compatibility

This coupling is designed for ZF WG series powershift transmissions, specifically the WG 90 and WG 94 models. It also fits select WG 180 and WG 200 variants when used with the correct 4661101037: TRANSMISSION HOUSING adapter. Common applications include agricultural tractors, construction loaders, and industrial material handlers where the WG 94 Series is installed. Always verify the spline count and pilot bore dimensions against your existing coupling before ordering.

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