ZF 4644.152.231 COUPLING for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.152.231 COUPLING is a critical driveline component engineered specifically for the WG 180 and WG 200 series transmissions. This OEM genuine part serves as the mechanical link between the engine output and the transmission input shaft, ensuring precise torque transfer and dampening torsional vibrations during operation. The SKU 4644.152.231 sits directly within the bell housing assembly, where it interfaces with the TRANSMISSION HOUSING (4644101249) and the TRANSMISSION HOUSING (4644301402) to maintain proper alignment and load distribution. Manufactured to ZF’s exacting tolerances, this coupling is essential for maintaining drivetrain integrity in heavy-duty industrial applications.

Symptoms of Failure

• Transmission gear slipping under load – When the 4644.152.231 coupling wears, you may experience intermittent gear slippage during acceleration or hill climbing, often misdiagnosed as clutch failure.
• Abnormal driveline vibration at specific RPM ranges – A worn coupling produces distinct low-frequency vibrations that resonate through the chassis, particularly between 1200-1800 RPM.
• Oil leaks near the bell housing interface – Deterioration of the coupling seal surface allows transmission fluid to escape, often pooling around the O-RING (0634306323) and COVER PLATE (4644301298) junction.
• Metallic clicking or knocking during gear engagement – Excessive play in the coupling splines creates audible impact noises when shifting from neutral to drive or reverse.

Technical Specifications

Compatibility

This coupling is designed for ZF WG 180 and WG 200 series transmissions used in medium-duty trucks, buses, and construction equipment. It directly replaces the original coupling in WG180, WG180-2, WG200, and WG200-2 models manufactured between 2005-2020. The 4644.152.231 is also compatible with select ZF Ecolife and ZF AS Tronic variants that share the same bell housing pattern. Always verify fitment by cross-referencing your transmission serial number with the TRANSMISSION HOUSING (4644301402) casting number.

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