Engines | Mounts, , (USED) 2004 Cummins ISX-450 Diesel Engine (EGR Model), Serial # 79066988, Engine Family # 4CEXH0912XAJ, CPL 8520, 450 @ 2000 RPM RATED, TEST RUN 2-17-16, Fully Inspected!!! LOW MILES!!! RUNS GREAT!!! NICE LOOKING ENGINE!! visit JJREBUILDERS.COM for more information on this motor or any other diesel engine. Call for more information 1-800-971-3019. INV # 002811