(Used) 2008 GM/Chevy 4.8L,, ENGINE ECM- Part Number: 12617630, Serial Number: 86YPMUK18080741A, Model Number: YPMU, Service Number: 12612384, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921