(Used) 2007 GM/Chevy 8.1L, ENGINE ECM- Part Number: 12602801, Serial Number: 86YKYW926191HFUQ, HDW NO. 12589161, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921