ZF 4644.152.501 CLUTCH for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.152.501 CLUTCH is a critical torque-transfer component engineered specifically for the WG 180 and WG 200 series transmissions. Positioned within the hydraulic control module, this OEM genuine part manages the engagement and disengagement of planetary gear sets, ensuring smooth power flow under heavy industrial loads. The SKU 4644.152.501 is precision-machined to factory tolerances, directly replacing worn units to restore original shift quality. When paired with a properly functioning 4644105475: DISCONNECTION assembly, this clutch maintains consistent pressure modulation across all operating ranges.

Symptoms of Failure

• Delayed gear engagement during cold starts — A worn 4644.152.501 clutch often causes a noticeable lag when shifting from neutral to drive, especially in WG 180 transmissions operating below 10°C.
• Intermittent slipping under load — When the clutch friction material degrades, operators report RPM flare without corresponding vehicle acceleration, particularly during uphill hauling.
• Contaminated transmission fluid with metallic particles — Failed clutch plates shed debris that circulates through the system, often damaging the 4644101134: TRANSMISSION HOUSING internal surfaces.
• Audible grinding or shuddering during gear changes — Worn splines on the clutch hub create vibration that transfers through the 4642303097: OUTPUT FLANGE, causing driveline oscillation.

Technical Specifications

Compatibility

This clutch is validated for use in the following ZF transmission models: WG 180, WG 200, and select variants of the WG 160 series with hydraulic control upgrades. It is not backward-compatible with pre-2005 WG 120 units. For proper sealing during installation, always replace the 0634303485: O-RING and inspect the 4644301247: THREADED BUSH for wear. The clutch assembly interfaces directly with the 4644301349: HOUSING to maintain concentric alignment.

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