Engines | Mounts, , (USED) 1985 Caterpilllar 3406B Diesel Engine (Air to Air), Serial # 7FB27354, AR# 4W3608, 425HP @ 1800RPM, Test Run 2-11-16, 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 # 002799