The Cummins ISX15 ECM ECU Part # 4993120 CM2250 CPL 3719 Diesel Engine Computer OEM is a crucial component for diesel engine control, featuring a 16-terminal unit with pin terminals for easy installation. Manufactured by Cummins in the United States, this Engine Control Unit (ECU) requires programming for proper operation. Additionally, it is designed with a bolt-on mounting style and female connector type for a secure fit on the front of the vehicle.