Overview
The ZF 0501.314.929 CAM DISC is a precision-machined component engineered to govern clutch pack engagement timing within heavy-duty ZF powershift transmissions. Positioned on the main control shaft, this OEM genuine part converts rotational motion into linear actuation, directly dictating gear selection sequences in construction machinery. The SKU 0501.314.929 is manufactured to exact factory tolerances, ensuring synchronized pressure application across the transmission’s hydraulic circuit. When paired with a properly sealed 4108101153: HOUSING, the cam disc maintains consistent shift quality under extreme load cycles. This component is critical for preventing premature wear on adjacent assemblies, including the 0501212152: MOTOR and the 0501314793: COVER, which rely on precise cam timing for hydraulic flow regulation.
Symptoms of Failure
- Erratic gear engagement during cold starts – A worn cam disc profile causes delayed clutch pack compression, leading to harsh or incomplete shifts. This is a common search query for “ZF transmission hesitation on cold start.”
- Progressive oil contamination from metal debris – Surface spalling on the cam lobe generates fine metallic particles that circulate through the hydraulic system. Technicians often search for “transmission oil metallic glitter ZF” when this occurs.
- Intermittent loss of forward or reverse gears – As the cam disc’s lift height degrades, the 0735370299: TAPERED ROLLER BEARING experiences uneven loading, resulting in momentary drive disengagement under torque.
- Audible clicking from the valve body area – A fractured cam disc edge produces a repetitive metallic noise during gear changes, often misdiagnosed as a solenoid issue.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.314.929 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Outer Diameter | 68.5 mm |
| Cam Lift Height | 12.2 mm ±0.05 mm |
| Weight | 0.34 kg |
| Surface Hardness | 58-62 HRC |
| OEM Reference | ZF 0501.314.929 |
Compatibility
This cam disc is designed for ZF powershift transmissions commonly deployed in wheel loaders, dozers, and excavators. Verified compatible models include the WG180, WG200, and WG211 series. It also fits select 4WG-200 and 6WG-200 variants used in articulated dump trucks. Always cross-reference your transmission serial number with the SKU 0501.314.929 before installation. For complete assembly restoration, inspect the 4108101153: HOUSING for scoring and replace the 0735370299: TAPERED ROLLER BEARING if axial play exceeds 0.1 mm.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101153 | HOUSING | Encloses cam disc and aligns shift forks |
| 0501212152 | MOTOR | Hydraulic actuation for clutch piston movement |
| 0501314793 | COVER | Seals valve body and retains cam shaft |
| 0735370299 | TAPERED ROLLER BEARING | Supports cam shaft radial and axial loads |
| 0501317874 | HOUSING | Secondary housing for auxiliary gear train |
| 0501317875 | ROLLER | Cam follower reducing friction on disc profile |
| 0501298376 | PISTON | Converts hydraulic pressure to clutch pack force |
| 0501317876 | COMPRESSION SPRING | Returns piston to neutral position |
| 0501314823 | BUSH | Wear sleeve for cam shaft journal |
| 0501318668 | HOUSING | Lower valve body housing for oil distribution |
