Engine control module from a 2004 Freightliner MT55. This was carefully removed from a vehicle that ran and drove well. The case, connectors and mounting points have no broken parts. The images are of the actual item you will receive. This item may require on-car programming, coding or flashing during installation in order to work with your vehicle. Please confirm that you or your repair facility can perform this procedure before making your purchase. Fits 2004 Freightliner M2 100, M2 106, MT45 and MT55 with 4.3L Mercedes-Benz OM904 170 horsepower diesel engine and part number 000 446 85 40. This may work with other medium duty vehicles equipped with the 4.3L Mercedes-Benz OM904 170 horsepower diesel engine and part number 000 446 85 40 as well. Anywhere outside the lower 48 states will require an additional shipping fee. No P.O. Boxes.