Overview
The ZF 0501.212.152 MOTOR is a critical hydraulic actuation component within the transmission control system of heavy-duty construction machinery. This OEM genuine part converts hydraulic pressure into precise mechanical motion to engage clutch packs and shift gears. As a direct replacement unit, the SKU 0501.212.152 interfaces directly with the valve body and the main 4108101153: HOUSING to ensure reliable power flow. When this motor fails, the entire drivetrain loses its ability to modulate torque, leading to operational downtime on job sites.
Symptoms of Failure
- Delayed or erratic gear engagement: The machine hesitates or jerks when shifting from forward to reverse, indicating the motor cannot build sufficient hydraulic pressure.
- Transmission overheating under load: A worn 0501.212.152 motor causes internal slippage, generating excessive heat that can warp the adjacent 0501314793: COVER.
- Hydraulic fluid contamination: Metal debris from a failing motor shaft often circulates through the system, damaging the 0735370299: TAPERED ROLLER BEARING and requiring a full flush.
- Complete loss of drive in one range: The motor seizes internally, preventing oil flow to the clutch pack housed within the 0501317874: HOUSING.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.212.152 |
| Type | Hydraulic Piston Motor |
| Material | Hardened Alloy Steel / Aluminum Housing |
| Weight | 4.2 kg (9.3 lbs) |
| Max Operating Pressure | 25 bar (363 psi) |
| OEM Reference | ZF 0501.212.152 |
| Mounting Bolt Torque | 45 Nm (33 ft-lbs) |
Compatibility
This OEM genuine motor is engineered for ZF powershift transmissions commonly found in wheel loaders, dozers, and excavators. It is a direct fit for the following transmission models: WG180, WG200, WG210, 4WG200, and 6WG200 series. Always verify the spline count and port configuration against your existing unit before installation. The motor works in tandem with the 0501317874: HOUSING to maintain concentric alignment of the output shaft.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101153 | HOUSING | Encloses the motor and valve body assembly |
| 0501314793 | COVER | Seals the motor cavity and retains hydraulic pressure |
| 0735370299 | TAPERED ROLLER BEARING | Supports axial and radial loads on the motor shaft |
| 0501317874 | HOUSING | Secondary housing for clutch pack alignment |
| 0501317875 | ROLLER | Reduces friction in the shift mechanism |
| 0501298376 | PISTON | Converts hydraulic force into linear motion |
| 0501317876 | COMPRESSION SPRING | Returns the piston to neutral position |
| 0501314823 | BUSH | Wear surface for the motor pivot pin |
| 0501314929 | CAM DISC | Controls the stroke of the motor pistons |
| 0501318668 | HOUSING | Outer casing for the transmission control unit |
