Engines | Mounts, , (USED) 1991 Caterpilllar 3406B Diesel Engine with Jake Brakes (Air to Air), Serial # 3ZJ01526, AR # 4P1258, 425HP @ 2100RPM, Low Miles, Test Run 11-18-15, 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 # 002732