Overview
The ZF 4642.151.471 CLUTCH is a critical torque-transfer component engineered specifically for the WG 150 Series transmission. Positioned within the planetary gear set, this OEM genuine part manages power flow between the engine and drivetrain, enabling smooth gear engagement and disengagement under heavy load conditions. As a direct replacement for the SKU 4642.151.471, it ensures precise hydraulic actuation and maintains the structural integrity of the clutch pack assembly. This component works in tandem with the 4642101109: TRANSMISSION HOUSING and the 4642301205: TRANSMISSION HOUSING to form a sealed, high-pressure environment essential for reliable operation in industrial applications.
Symptoms of Failure
- Delayed or harsh gear engagement: When the 4642.151.471 clutch wears, hydraulic pressure drops, causing noticeable lag or jarring shifts during acceleration.
- Transmission oil leaks near the clutch housing: Degraded seals or piston wear allow ATF to escape, often visible as drips around the bell housing area.
- Slipping under load: The clutch fails to hold torque, resulting in engine RPM spikes without corresponding vehicle speed increase, particularly on inclines.
- Burning smell from overheated friction material: Prolonged slipping generates excessive heat, producing a distinct burnt odor and potential damage to adjacent components like the 0730365125: TYPE PLATE.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 4642.151.471 |
| OEM Reference | ZF 4642.151.471 |
| Material | Sintered bronze friction plates with steel separator discs |
| Weight | 2.8 kg (6.2 lbs) |
| Outer Diameter | 180 mm |
| Inner Diameter | 120 mm |
| Friction Plate Count | 5 |
| Operating Pressure | 12–16 bar |
Compatibility
This clutch is primarily designed for the ZF WG 150 Series, but it also fits select models in the WG 180 and WG 200 families due to shared clutch pack dimensions. It is commonly used in WG 150, WG 180, and WG 200 transmissions found in heavy-duty trucks, construction equipment, and agricultural machinery. For proper installation, ensure the 0631311009: GROOVED STUD is correctly torqued to prevent misalignment. Always verify your transmission serial number against the OEM parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Encloses and supports the clutch assembly |
| 4642301205 | TRANSMISSION HOUSING | Secondary housing for oil distribution |
| 0730365125 | TYPE PLATE | Identification tag for transmission specs |
| 0631311009 | GROOVED STUD | Secures clutch pack alignment |
| 4642301168 | SCREEN SHEET | Filters debris from hydraulic fluid |
| 4642301169 | SCREEN SHEET | Fine mesh filter for oil return |
| 0636100621 | HEXAGON SCREW | Fastener for clutch housing |
| 4642301186 | SCREEN SHEET | High-flow filter for cooler circuit |
| 4644106231 | SHIFT SYSTEM | Controls clutch engagement timing |
| 4644306470 | GASKET | Seals clutch housing against leaks |

