CATERPILLAR , (USED) 1988 Caterpillar 3406B Diesel Engine (Air to Air), Serial # 4MG08486, AR # 9Y2463, 350HP RATED @ 18000 RPM, Test Run 9-20-17, Fully Inspected!!! Runs Perfect!!! Visit WWW.JJREBUILDERS.COM for more information on this engine or any other diesel engine you may be looking for. Call 1-800-971-3019. INV # 003489 https://www.jjrebuilders.com/engine-for-sale/? vid=1779&unit=cat-3406b