Overview
The ZF 0501.306.397 PRESSURE PLATE is a critical clutch component within ZF powershift transmissions, responsible for applying and releasing clamping force on the clutch pack to engage or disengage a specific gear range. Located inside the transmission housing, this OEM genuine part ensures precise hydraulic pressure modulation for smooth shifting under heavy loads. The SKU 0501.306.397 identifies a factory-spec pressure plate designed to maintain consistent torque transfer in demanding construction machinery applications. When installed alongside the 4108101112: HOUSING and 4108201177: HOUSING, this plate forms a sealed assembly that prevents fluid bypass and ensures reliable clutch engagement.
Symptoms of Failure
- Delayed gear engagement or clutch slipping under load: A worn pressure plate cannot maintain adequate clamping force, causing the transmission to slip when moving heavy equipment uphill or under torque.
- Erratic shifting or harsh engagement: Uneven wear on the plate surface leads to inconsistent hydraulic pressure, resulting in jarring shifts that stress driveline components.
- Transmission overheating due to clutch pack chatter: As the plate loses flatness, constant micro-slippage generates excess heat, often accompanied by a burnt oil smell.
- Oil contamination from metallic debris: Friction material from a degraded pressure plate flakes off into the transmission fluid, clogging filters and damaging the 0636302056: SCREW PLUG sealing points.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.306.397 |
| Material | High-carbon steel with hardened friction surface |
| Outer Diameter | 280 mm (estimated) |
| Inner Diameter | 165 mm (estimated) |
| Thickness | 8.5 mm (new) |
| Weight | 2.4 kg |
| OEM Reference | ZF 0501.306.397 |
| Surface Finish | Ground and lapped to Ra 0.4 µm |
Compatibility
This pressure plate is engineered for ZF powershift transmissions commonly found in wheel loaders, excavators, and telehandlers. It directly fits the WG180, WG200, and WG210 series, as well as the 4WG200 and 6WG200 variants used in construction machinery. The plate also integrates with the 4108301304: BEARING COVER to protect the clutch pack from debris. Always verify your transmission model code before ordering, as minor variations exist between early and late production units.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101112 | HOUSING | Encloses clutch pack and pressure plate assembly |
| 4108201177 | HOUSING | Secondary housing for output shaft support |
| 0636302056 | SCREW PLUG | Seals hydraulic passages in the valve body |
| 4108301304 | BEARING COVER | Retains thrust bearing and prevents axial play |
| 4108306173 | GASKET | Prevents oil leaks between mating surfaces |
| 0750110040 | SHAFT SEAL | Contains fluid at the input shaft exit point |
| 4108102042 | INPUT | Transfers engine torque into the transmission |
| 4108302099 | PLANET CARRIER | Holds planetary gears for torque multiplication |
| 4108302007 | BEARINGSHEET | Thrust washer set for clutch pack alignment |
| 0635332196 | BALL BEARING | Supports rotating shafts within the housing |
