Engines | Mounts, , (USED) 1989 Caterpilllar 3406B Diesel Engine with Jake Brakes (Air to Air), Serial # 4MG80368, AR # 7E9229, 425HP @ 2100RPM, Test Run 3-8-16, Fully Inspected!!! Runs Perfect!!! Visit JJREBUILDERS.COM for more information on this engine or any other diesel engine you may be looking for. Call 1-800-971-3019. INV # 002833