ZF 4644.151.532 COUPLING for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.151.532 COUPLING is a critical driveline component engineered specifically for the WG 180 and WG 200 series transmissions. This OEM genuine part serves as the primary mechanical link between the engine output and the transmission input shaft, ensuring precise torque transfer and dampening torsional vibrations. Positioned directly within the bell housing assembly, the 4644.151.532 coupling works in concert with the TRANSMISSION HOUSING to maintain proper alignment and load distribution. As a factory-specification component, SKU 4644.151.532 guarantees exact fitment and durability under heavy-duty industrial operating conditions.

Symptoms of Failure

• Transmission coupling oil leaks at bell housing – Worn seals around the 4644.151.532 coupling allow transmission fluid to escape, often visible as drips near the WG 180/WG 200 housing joint.
• Gear slipping under load in WG 200 series – A degraded coupling cannot maintain consistent engagement, causing intermittent power loss during acceleration or uphill operation.
• Abnormal vibration or clunking during gear shifts – Excessive play in the coupling produces metallic knocking sounds, particularly when shifting between forward and reverse in WG 180 transmissions.
• Difficulty engaging gears in cold weather – A failing coupling stiffens in low temperatures, leading to rough or delayed gear engagement in both WG 180 and WG 200 models.

Technical Specifications

Compatibility

This OEM coupling is designed exclusively for ZF WG 180 and WG 200 series transmissions. It is a direct replacement for the original coupling in these models and is not compatible with WG 120 or WG 250 variants without additional adapter modifications. When replacing the 4644.151.532, technicians should also inspect the HOUSING for wear, as misalignment can accelerate coupling failure. For proper identification, always cross-reference the TYPE PLATE on your transmission to confirm the exact series. Secure installation requires the GROOVED STUD to be torqued to factory specifications.

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