(Used) 2014 Freightliner M2 112 Medium Duty, ENGINE ECM- ECM Model: MCM2.1, Part Number: A 000 446 91 35 / 001, Serial Number: A2C7423420100134820878, HW: D1, SW: - - -, Engine Information- Engine Stock #P-5518, Serial Number: 471927S0199442, (2 Plugs) 1 Plug Pins: 120 Pins Plug, 1 Plug Pins: 21 Pins Plug Reference images for condition. For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921