(Used) 2008 GM V8 ECM- Serial Number: 86YKYW926209J1RN, Serv Number: 12602801, Part Number: 12597116, HDW Number: 12589161, Model: YKYW, Engine: P-34034 Horsepower: 340, Displacement: 8.1L, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921