(Used) 2009 GM/Chevy (HD) 4.8L,ENGINE ECM- ECM Model: E38, Part Number: 12629209, Serial Number: 86YRUK19121F5CQ, Service Number: 12625455, Engine: GM/Chevy (HD) 4.8L, J1 Plug Pins: 73 Pins Plug, J2 Plug Pins: 80 Pins Plug, Reference images for condition. For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921