(Used) 2008 GM 4.8L, ENGINE ECM - Part Number: 12629209, Serial Number: 86YRUCK19148GUJD, Service Number: 12625455, Engine Part Number: 52G8D285A, ESN: 52120F037, Horsepower: 285, Displacement: 4.8L, Engine: P-46074, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921