Overview
The ZF 0501.332.275 RUNNING DISK is a critical friction component engineered for high-torque construction machinery transmissions. This OEM genuine part sits within the clutch pack assembly, where it manages torque transfer and ensures smooth gear engagement under extreme load conditions. Designed to withstand continuous thermal stress, the 0501.332.275 running disk acts as the primary interface between rotating and stationary elements inside the transmission housing. When paired with a robust 4663101003: HOUSING, this disk maintains precise alignment and hydraulic pressure distribution. The SKU 0501.332.275 is manufactured to ZF’s original specifications, guaranteeing exact fitment and durability in demanding environments such as wheel loaders, excavators, and graders.
Symptoms of Failure
- Delayed gear engagement or slipping under load: Worn friction material on the 0501.332.275 running disk reduces clamping force, causing the transmission to hesitate or slip when shifting into forward or reverse.
- Overheating transmission fluid with burnt odor: Excessive slippage generates heat that degrades the oil, often accompanied by a distinct burnt smell—a clear sign the running disk has lost its coefficient of friction.
- Erratic shift quality or harsh engagement: As the disk surface becomes glazed or warped, hydraulic pressure cannot modulate smoothly, leading to jarring shifts or unexpected transmission behavior.
- Visible metallic debris in oil filter or pan: Advanced wear of the running disk releases fine metal particles, which can be detected during routine maintenance and indicate imminent clutch pack failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.332.275 |
| OEM Reference | ZF 0501.332.275 |
| Outer Diameter | 180 mm (estimated) |
| Inner Diameter | 120 mm (estimated) |
| Thickness | 2.5 mm (estimated) |
| Material | Sintered bronze friction lining on steel core |
| Weight | 0.35 kg (estimated) |
| Torque Capacity | 450 Nm (estimated) |
| Operating Temperature Range | -20°C to +120°C |
Compatibility
This running disk is designed for use in ZF’s heavy-duty powershift transmission series, including the WG180, WG200, and WG211 models commonly found in construction machinery. It also fits select variants of the 4WG-180 and 4WG-200 transmissions. For proper installation, the disk must be paired with the correct 4663301026: COVER to maintain clutch pack preload. Additionally, secure fastening requires the 0631306816: CYLINDRICAL PIN and 0636100817: CAP SCREW to prevent axial movement during operation. Always verify your transmission model’s parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4663101003 | HOUSING | Encloses and aligns the clutch pack assembly |
| 4663301026 | COVER | Seals the clutch pack and maintains hydraulic pressure |
| 0631306816 | CYLINDRICAL PIN | Locates and prevents rotation of clutch components |
| 0636100817 | CAP SCREW | Secures the cover and housing together |
| 4656301148 | FIXING PLATE | Retains the running disk in its correct axial position |
| 4475280099 | SCREW PLUG | Seals oil passages in the transmission housing |
| 0634303266 | O-RING | Prevents fluid leaks between mating surfaces |
| 4475280018 | SCREW PLUG | Provides access point for pressure testing |
| 0634303312 | O-RING | Seals the screw plug against oil leakage |
| 0501325243 | TEMP.SENSOR | Monitors transmission oil temperature for diagnostics |
