1Strong Compatibility: Engine control unit module is replacement for Cummins Engine M11 QSM11 ISM11, bringing you a more professional use experience. 2Part Number: Engine control module replace part number are P4963807, 4963807, 4963807RX, 4963808 for reference. Please check the number before ordering. 3Easy Control: Computer board has an adaptive control function that automatically adjusts the engine's operating state according to different driving conditions and environments. 4High Performance: Control module adopts sophisticated hardware components and efficient software algorithms, with strong anti interference ability and high reliability. 5Complete Functions and Strong Expandability: The engine computer board has rich functions and interfaces, which can communicate and integrate with other vehicle systems(such as transmission, Abs, in?vehicle entertainment system, etc.) to realize the intelligentcontrol of the vehicle.