Overview
The ZF 4644.152.431 CLUTCH is a critical internal component engineered for the WG 180 and WG 200 series transmissions. This OEM genuine part serves as the primary torque transfer mechanism, engaging and disengaging the engine from the driveline to enable smooth gear shifts and stationary operation. Positioned within the transmission housing assembly, this clutch directly interfaces with the input shaft and hydraulic control system. The SKU 4644.152.431 is precision-machined to ZF factory tolerances, ensuring reliable engagement under high-load industrial applications. When replacing this unit, it is common practice to inspect the surrounding 4644101164: TRANSMISSION HOUSING and the 4644301371: TRANSMISSION HOUSING for wear, as these components share the same hydraulic circuit.
Symptoms of Failure
- Transmission gear slipping under load: A worn 4644.152.431 clutch fails to maintain friction, causing the WG 200 to lose torque during acceleration or uphill operation.
- Delayed or harsh engagement: Operators may notice a lag when shifting from neutral to drive, or a jarring clunk, indicating the clutch pack is not releasing properly.
- Hydraulic fluid contamination: As the friction material degrades, fine particles enter the oil circuit, often visible as dark debris on the 0634306525: O-RING seals during inspection.
- Overheating and burnt smell: Slipping generates excessive heat, which can warp the clutch plates and damage the 0730365067: TYPE PLATE identification tag due to thermal expansion.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4644.152.431 |
| OEM Reference | ZF 4644.152.431 |
| Material | Sintered bronze friction lining with steel core |
| Outer Diameter | 152 mm (estimated) |
| Inner Diameter | 100 mm (estimated) |
| Thickness | 4.5 mm (new) |
| Weight | 0.85 kg |
| Operating Torque | Up to 600 Nm |
Compatibility
This clutch is specifically designed for the ZF WG 180 and WG 200 series transmissions. It is a direct replacement for units requiring the 4644.152.431 SKU. The part is also compatible with select variants of the ZF WG 150 and WG 210 when used with the correct 0636610028: STUD and 0631311009: GROOVED STUD for alignment. Always verify the transmission serial number against the 0730365067: TYPE PLATE before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101164 | TRANSMISSION HOUSING | Encloses the clutch and gear assembly |
| 4644301371 | TRANSMISSION HOUSING | Alternate housing for WG 200 variants |
| 0730365067 | TYPE PLATE | Identifies transmission model and specs |
| 0631311009 | GROOVED STUD | Secures clutch pack alignment |
| 4644303060 | COVER PLATE | Seals the clutch cavity |
| 4644201011 | COVER PLATE | Alternate cover for WG 180 |
| 4644201010 | COVER PLATE | Standard cover for WG 200 |
| 4644301372 | COVER PLATE | Reinforced cover for high-torque |
| 0636610028 | STUD | Mounting fastener for housing |
| 0634306525 | O-RING | Hydraulic seal for clutch piston |
