The Cummins ISM Diesel Engine Control Module ECM ECU 3103533 OEM is a steel engine control unit with a bolt-on mounting style. It requires programming and has 8 pin terminals. This unit has a maximum amperage of 12A and features EEPROM memory. It is designed for front placement on the vehicle and has a male connector type for easy installation. The part is manufactured by Cummins and is a direct OE/OEM replacement, suitable for specific diesel engine models.