Overview
The ZF 4644.152.216 CLUTCH is a critical torque-transfer component engineered specifically for the WG 180 and WG 200 series transmissions. Positioned within the planetary gear set assembly, this OEM genuine part engages and disengages power flow between the engine and drivetrain, enabling smooth gear shifts under heavy load conditions. The SKU 4644.152.216 is manufactured to ZF’s original tolerances, ensuring precise hydraulic actuation and minimal friction loss. When installed alongside the 4644101080: TRANSMISSION HOUSING and the 4644301333: HOUSING, this clutch forms the backbone of the transmission’s power distribution system.
Symptoms of Failure
When the ZF 4644.152.216 clutch begins to wear, operators typically notice three distinct failure indicators. First, delayed or harsh gear engagement occurs as the clutch pack loses hydraulic pressure, causing hesitation when shifting from neutral to drive. Second, intermittent gear slipping under load becomes apparent during uphill climbs or when towing, as the friction material fails to maintain torque transfer. Third, contaminated transmission fluid with metallic particles appears in the sump, indicating clutch plate degradation. Fourth, erratic shift patterns may develop, where the transmission hunts between gears due to inconsistent clutch application. These symptoms often accompany issues with the 0730365125: TYPE PLATE, which can become illegible during servicing.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4644.152.216 |
| OEM Reference | ZF 4644.152.216 |
| Material | Sintered bronze friction plates with steel separator discs |
| Outer Diameter | 216 mm |
| Inner Diameter | 152 mm |
| Thickness (assembled) | 48 mm |
| Weight | 2.4 kg |
| Operating Pressure | 12-16 bar |
| Max Torque Capacity | 1,200 Nm |
Compatibility
This clutch is designed for ZF WG 180 and WG 200 series transmissions, commonly found in medium-duty trucks, buses, and construction equipment. It is also compatible with WG 180-1, WG 180-2, WG 200-1, and WG 200-2 variants. The part fits directly into the clutch drum assembly without modification. For proper installation, ensure the 0631311009: GROOVED STUD is torqued to specification to prevent axial play. Always verify the transmission serial number against ZF’s compatibility matrix before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101080 | TRANSMISSION HOUSING | Encloses and supports all internal gear train components |
| 4644301333 | HOUSING | Provides structural mounting for clutch and valve body |
| 0730365125 | TYPE PLATE | Identifies transmission model and serial number |
| 0631311009 | GROOVED STUD | Secures clutch pack alignment during assembly |
| 0636305019 | SCREW PLUG | Seals hydraulic passages in the valve body |
| 4644301247 | THREADED BUSH | Provides wear-resistant thread for housing bolts |
| 0634303485 | O-RING | Prevents fluid leaks between clutch drum and housing |
| 4644106055 | SHIFT SYSTEM | Controls hydraulic pressure to engage clutch packs |
| 4642306050 | COVER PLATE | Protects clutch access port from debris ingress |
| 4644306464 | GASKET | Creates oil-tight seal between clutch housing and cover |
