2011 Cummins ISC, School Bus, Engine Assys, Fits to: Thomas Built Saf-T-Liner HDX, (Used) 2010 Cummins ISC 300, ENGINE ASSEMBLY- Family Number: 9CEXH0505CAB, Displacement: 8.3L, Horsepower: 300, Ar.No./CPL: 3365, ESNr: 73036306, Part Number 20091006, ECS: PCM, EGR, PTOX, Reference images for condition. For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Horse Power 300, Serial# 73036306, Casting# 73036306 1T7YU4E26B1131023