0 GM/Chev (HD) Other, , ECMs, Fits to: , (Used) GM, ECM- Model: YPUH, Serial Number: 86YPUHR171930522, Part Number: 12613264, HDW Number: 12589161, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Serial# 86YPUHR171930522, Casting# 86YPUHR171930522, Part# 12613264