(Used) 2009 GM/Chev (HD), ENGINE ECM- Part Number: 12635858, Serial Number: 86AAKAK2017481VD, Displacement: 4.8L, Horsepower: 285, Type Plug: 2 Rectangular, Pin Plug: 1 Plug of 80 Pins, 1 Plug of 73 Pins, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921