(Used) 2008 GM/Chev (HD) 8.1L, ENGINE ECM- Part Number: 12613317, Serial Number: 86YPUPR171990305, HDW: 12589161, Family Number: 8GMXH08.1503, Displacement: 8.1L, Horsepower: 320, Serial Number: TBD, ECS: SFI, HO2S, TWC, Type Plug: 2 Rectangular, Pin Plug: 1 Plug of 80 Pins, 1 Plug of 80 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