ZF 4644.151.209 CLUTCH for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.151.209 CLUTCH is a critical hydraulic-mechanical assembly designed for the WG 180 and WG 200 series transmissions. This OEM genuine part, identified by SKU 4644.151.209, sits within the planetary gear set and is responsible for engaging and disengaging torque flow between gear stages. It directly controls power distribution to the output shaft, making it essential for smooth shifting under load. When paired with the 4644105475: DISCONNECTION unit, this clutch ensures precise modulation during directional changes.

Symptoms of Failure

• Delayed or harsh engagement: If the clutch pack slips or fails to lock, operators will notice a lag when shifting from neutral to drive, often accompanied by a jarring thud.
• Erratic gear slipping under load: Worn friction discs cause the transmission to lose torque during uphill climbs or heavy hauling, leading to RPM flare without acceleration.
• Dark, burnt transmission fluid: Overheated clutch material contaminates the oil, producing a distinct burnt odor and discolored fluid that indicates imminent failure.
• Intermittent loss of drive in forward gears: A failing 4644.151.209 clutch may cause the WG 200 to suddenly drop into neutral, especially after prolonged operation at high temperatures.

Technical Specifications

Compatibility

This clutch is engineered for the ZF WG 180 and ZF WG 200 series transmissions, commonly found in mid-range construction and material handling equipment. It is also compatible with select variants of the WG 150 and WG 160 series when used with the appropriate 4642303097: OUTPUT FLANGE. For proper installation, ensure the 0636020211: HEXAGON SCREW is torqued to factory specifications, and verify that the 4644101134: TRANSMISSION HOUSING is free of scoring or warping.

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