(Used) 2006 GM/Chev (HD) 6.0, ENGINE ECM - Part Number: 12589161, Serial Number: 89YPUHR171980416, Service Number: 12602801, 651209, 12613264, Displacement: 6.0L, Horsepower: 300, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921