ZF 4644.152.549 COUPLING for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.152.549 COUPLING is a critical torque-transfer component engineered specifically for the WG 180 and WG 200 transmission series. This OEM genuine part serves as the mechanical link between the engine output and the transmission input shaft, ensuring smooth power delivery and vibration dampening during gear shifts. Positioned within the driveline assembly, the 4644.152.549 coupling absorbs torsional shocks and maintains alignment between rotating elements. As a factory-spec replacement, this SKU guarantees precise fitment and long service life in heavy-duty industrial applications where reliability is non-negotiable.

Symptoms of Failure

• Oil leaks around the bell housing – Worn coupling seals allow transmission fluid to escape, often noticed as drips under the vehicle or wet spots near the TRANSMISSION HOUSING.
• Gear slipping under load – A degraded coupling cannot maintain proper torque transfer, causing intermittent loss of drive power during acceleration or uphill operation.
• Abnormal vibration or shuddering – Excessive play in the coupling produces rhythmic shaking through the drivetrain, especially at low RPMs or during clutch engagement.
• Metallic grinding noises – Internal wear of the coupling splines or hub creates audible scraping sounds, indicating imminent failure of the COVER PLATE interface.

Technical Specifications

Compatibility

This coupling is designed for ZF WG 180 and WG 200 series transmissions, including the WG180, WG200, and their sub-variants (WG180-1, WG200-2). It directly replaces the original coupling in these models and is compatible with both the TRANSMISSION HOUSING and the COVER PLATE assemblies. For complete driveline restoration, verify that the O-RING is also replaced to prevent fluid bypass. This part is not suitable for WG 120 or WG 150 series units without adapter modifications.

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