(GOOD USED/ RUN TESTED/ FULLY INSPECTED) 2012 Cummins QSB 4.5L Diesel Engine (CM2250), Serial # 73488027, CPL 3670, Service Model Name: CM2250 EC, Family # DCEXL04.5AAE, Engine Configuration: D323011CX03, Low Hours, Perfect Engine!!! VISIT JJREBUILDERS for more information or call PH: 786-377-5210. REF INV # 005643