(Used) GM/Chevy 8.1L, ENGINE ECM- Model: YPUH, Part Number: 12602801, Serial Number: 86YPUHR171731272 HDW NO. 12589161, Model: YPUN For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921