(Used) 2009 GM/Chev (HD), ECM- Model: YRUC, Part Number: 12629209, Serial Number: 86YRUCK18242NMDV, Serv Number: 12625455, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921