Engines | Mounts, , (GOOD USED) 2004 Cummins ISX-400ST Diesel Engine, Service Model Name: ISX CM870, 400HP @ 2000RPM, Serial # 79051186, CPL 8520, Family # 4CEXH0912XAJ, Engine Configuration: D103004BX03, TEST RUN WATCH VIDEO ON JJ REBUILDERS WEBSITE!!, Fully Inspected!!! LOW MILES!!! RUNS GREAT!!!! visit JJREBUILDERS for more information on this motor or any other diesel engine. Call for more information 1-800-971-3019. INV # 004193