(Used) 2007 GM/Chev (HD) ECM- Serial Number: 86YPUHR171980320, Par Numbers:12589161, SERV Number:12602810, HDW Number:12589161, Model: YPUH, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921