Eaton Fuller K4252RX Electronic Clutch Actuator – Genuine Automated Manual Transmission Clutch Actuator
The Eaton Fuller K4252RX Electronic Clutch Actuator is a genuine OEM replacement actuator engineered for Eaton Fuller UltraShift®, UltraShift PLUS®, and compatible automated manual transmissions (AMTs). This precision electromechanical component automatically controls clutch engagement and disengagement, eliminating the need for a driver-operated clutch pedal while delivering smooth, consistent gear changes and optimized transmission performance in medium- and heavy-duty commercial vehicles.
Designed to operate in conjunction with the transmission’s Electronic Control Unit (ECU), the K4252RX converts electronic commands into precise mechanical clutch movement. The actuator continuously adjusts clutch position based on engine speed, vehicle load, throttle input, and transmission operating conditions, ensuring accurate clutch engagement during starts, shifts, and low-speed maneuvering. Whether replacing a failed actuator or performing major transmission service, the Eaton Fuller K4252RX helps restore factory shift quality, drivability, and clutch control.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Eaton Fuller |
| Part Number | K4252RX |
| Product Type | Electronic Clutch Actuator |
| Transmission Type | Automated Manual Transmission (AMT) |
| Actuation Method | Electronic / Electromechanical |
| Function | Automatic Clutch Engagement & Release |
| Mounting Location | Transmission Clutch Housing |
| OEM Quality | Genuine Eaton Fuller Replacement |
| Condition | New or Factory Remanufactured (depending on supplier) |
| Sold As | Individual Actuator Assembly |
