(Used) 2016 GM 6.0L ENGINE ECM - Part Number: 12686539, Serial Number: 86ACD5K28304JGYF, Service Number: 12668991, Family Number: FGMXE06.0584, Displacement: 6.0L, Horsepower: 320, Serial Number: 52119K067, Part Number: 52H2D320A, Engine: P-47592, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21901