(Used) 2008 GM 4.8L, ENGINE ECM - Part Number: 12617630, Serial Number: 86YPMUK1808073SW, Service Number: Displacement: 4.8L, Horsepower: 285, Serial Number: 52120L034, Part Number: 52G8D285A, Engine: P-45976, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921