ZF 4644.151.474 CLUTCH for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.151.474 CLUTCH is a critical hydraulic-mechanical component engineered for the WG 180 and WG 200 series powershift transmissions. This OEM genuine part controls torque transfer between the engine and gearset, engaging and disengaging power flow during gear shifts. Positioned within the clutch pack assembly, the SKU 4644.151.474 directly interfaces with the 4644105413 DISCONNECTION mechanism to modulate hydraulic pressure. Precision-ground friction surfaces and hardened steel construction ensure reliable engagement under heavy industrial loads. When paired with a properly sealed 4644101222 TRANSMISSION HOUSING, this clutch maintains consistent clamping force across all operating temperatures.

Symptoms of Failure

• Delayed gear engagement: When the 4644.151.474 clutch wears, operators notice a 2-3 second lag between shifting and actual gear engagement, particularly under load.
• Transmission oil contamination: Friction material shedding from the clutch plate produces metallic particles in the hydraulic fluid, visible during routine oil sampling.
• Intermittent power loss: Worn clutch surfaces cause partial slipping during uphill hauling or heavy towing, accompanied by a distinct burning odor.
• Erratic shift quality: Hard or jerky shifts occur as the clutch fails to hold steady hydraulic pressure, often triggering transmission fault codes.

Technical Specifications

Compatibility

This genuine ZF clutch is designed for the WG 180 and WG 181 transmission series, commonly found in ZF WG 180, WG 181, and WG 200 models used in construction loaders and agricultural tractors. It directly replaces OEM part 4644.151.474 in 6-speed and 8-speed powershift configurations. For proper installation, ensure the 4642303093 OUTPUT FLANGE is torqued to specification, and secure the assembly using the 0636021010 HEXAGON SCREW kit. This clutch also fits select ZF WG 200 variants when paired with the correct piston assembly.

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