The 12MS517M Mack EM7 Engine Control Module (ECM) is an OEM part designed for commercial trucks with a 300 HP Mack engine. This unit, manufactured in 2000, is a genuine Mack product with a warranty included. It serves as the Engine Computer (ECU/ECM) for the vehicle, ensuring proper control and functionality of the engine. The ECM is a crucial component for maintaining and repairing commercial truck engines, particularly for Mack trucks with a DM690 model.
