This Diesel Engine Computer Module ECM ECU Fits For Cummins ISM11 M11 QSM11 3408501 is a high-quality direct replacement fitment type part that comes with features such as easy installation and requires programming. It is made of durable and sturdy aluminum material, with a length of 12 inches, a height of 3 inches, and a width of 12 inches. With a maximum amperage of 12 A and memory stored in EEPROM, this engine control unit is perfect for placement in the engine compartment. The item also has interchange part numbers 4309175RX, 4309175, and 4309175NX as well as OE/OEM part numbers 4309175RX, 3408501RX, 3408501NX, and 3408501X.