ZF 4644.153.447 CLUTCH for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.153.447 CLUTCH is a critical torque-transfer component engineered for the WG 180 and WG 200 series transmissions. This OEM genuine part sits directly within the planetary gear set assembly, where it engages and disengages power flow between the input shaft and the output shaft. As a friction-based coupling device, it precisely controls gear engagement during shifting operations, ensuring smooth power delivery under heavy industrial loads. The SKU 4644.153.447 is manufactured to ZF’s exacting tolerances, using high-temperature friction materials that withstand continuous operation in construction, mining, and agricultural machinery. When installed alongside the 4644105423: DISCONNECTION mechanism, this clutch forms the core of the transmission’s shift control system.

Symptoms of Failure

• Delayed or harsh gear engagement — When the 4644.153.447 clutch wears, operators notice a pronounced lag between selecting a gear and actual engagement, often accompanied by a jarring shift feel. This symptom is frequently searched as “ZF WG200 clutch slipping under load.”
• Transmission overheating during normal operation — A failing clutch generates excessive friction heat due to incomplete plate separation. This manifests as elevated transmission fluid temperatures, even during light-duty cycles, matching the long-tail query “ZF transmission overheating clutch failure.”
• Oil contamination with metallic particles — As friction material degrades, fine metal shavings appear in the transmission fluid. This is detectable during routine oil changes and is a classic indicator of clutch plate deterioration, often searched as “metal shavings in ZF WG180 transmission oil.”
• Intermittent loss of drive in forward gears — The clutch may fail to hold torque under load, causing the transmission to momentarily lose power delivery, particularly when climbing grades or towing heavy loads.

Technical Specifications

Compatibility

This ZF 4644.153.447 clutch is primarily designed for the WG 200 Series transmissions, with direct application in the WG 180 and WG 200 models. It is also compatible with certain variants of the WG 160 and WG 250 series, provided the transmission uses the same planetary gear set architecture. The part interfaces directly with the 4644303054: OUTPUT FLANGE and is secured using the 0636021010: HEXAGON SCREW fasteners. For proper installation, the 4644101229: TRANSMISSION HOUSING must be inspected for wear at the clutch drum interface. Always verify transmission serial numbers against ZF’s compatibility charts before ordering.

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