(Used) 2009 GM/Chev (HD) 4.8L, ENGINE ECM- Serial Number: 86AAKAK2017472PU, Part Number: 12635858, 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#: 86AAKAK2017472PU - Engine Make: GM/Chev (HD) - Engine Model: V8, 4.8L, Gas