(Used) 2007 Workhorse GM/Chevy (HD) 8.1L ENGINE ECM - Part Number: 12589161, Serial Number: 86YPUHR171760894, Service Number: 12602801, Warranty Security Tag: 178157, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921