(Used) 2008 GM 4.8L, ENGINE ECM - Part Number: 12629209, Serial Number: 86YRUCK19121F5XF, Displacement: 4.8L, Horsepower: 285, Engine: P-44767, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921