(Used) 2008 GM/Chev (HD), ECM, ECU, PCM- Model: YPMU Part Number: 12617630, Serial Number: 86YPMUK1870807660, Serv. Number: 12612384, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921 - Casting/Serial#: 86YPMUK1870807660 - Engine Make: GM/Chev (HD) - Engine Model: V8, 4.8L, Gas