Overview
The ZF 4644.151.059 CLUTCH is a critical torque-transfer component engineered specifically for the WG 180 and WG 200 series transmissions. This OEM genuine part sits within the clutch pack assembly, where it engages and disengages power flow between the engine and the drivetrain. Designed to withstand high thermal loads and repetitive cycling, the 4644.151.059 clutch ensures precise gear engagement and smooth power delivery in heavy-duty industrial applications. When paired with a robust TRANSMISSION HOUSING (4644101137), this clutch maintains alignment and durability under extreme operating conditions. The SKU 4644.151.059 is a direct replacement for worn units, restoring full transmission functionality without modification.
Symptoms of Failure
- Delayed or harsh gear engagement: A worn 4644.151.059 clutch often causes noticeable hesitation or jarring shifts, particularly when accelerating from a stop or during low-speed maneuvering.
- Slipping under load: If the clutch fails to hold torque, you may experience engine RPM spikes without corresponding vehicle speed increase, especially when climbing grades or carrying heavy loads.
- Oil contamination and overheating: Friction material degradation from a failing clutch can introduce debris into the transmission fluid, leading to dark, burnt-smelling oil and elevated operating temperatures.
- Unusual noise during engagement: Grinding or whining sounds when shifting indicate that the clutch disc or pressure plate has worn beyond tolerance, often requiring immediate replacement to prevent damage to the HOUSING (4644301333).
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4644.151.059 |
| OEM Reference | ZF 4644.151.059 |
| Material | High-carbon steel with sintered friction lining |
| Outer Diameter | 280 mm (estimated) |
| Inner Diameter | 180 mm (estimated) |
| Thickness | 8.5 mm (estimated) |
| Weight | 2.3 kg (approx.) |
| Torque Capacity | Up to 1,200 Nm (estimated) |
| Operating Temperature Range | -20°C to +120°C |
Compatibility
This ZF 4644.151.059 clutch is primarily designed for the WG 180 and WG 200 transmission series, which are widely used in construction, mining, and agricultural machinery. It is compatible with all sub-variants of these models, including WG 180-1, WG 180-2, WG 200-1, and WG 200-2. The clutch interfaces directly with the TYPE PLATE (0730365125) for correct orientation and is secured using a GROOVED STUD (0631311009) to prevent axial movement. For proper installation, ensure the transmission housing and shift system are in good condition.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101137 | TRANSMISSION HOUSING | Encloses and supports the clutch assembly |
| 4644301333 | HOUSING | Provides structural integrity for gear train |
| 0730365125 | TYPE PLATE | Identifies transmission model and specs |
| 0631311009 | GROOVED STUD | Secures clutch pack alignment |
| 0636305019 | SCREW PLUG | Seals fluid passages in housing |
| 4644301247 | THREADED BUSH | Provides threaded mounting point |
| 0634303485 | O-RING | Prevents oil leaks at joint |
| 4644301257 | ADAPTER | Connects clutch to output shaft |
| 0634306023 | O-RING | Seals adapter interface |
| 4644106231 | SHIFT SYSTEM | Controls clutch engagement hydraulically |
