CATERPILLAR , (USED) 1991 Caterpilllar 3406B Diesel Engine with Jake Brakes (Air to Air), Serial # 3ZJ02836, 425HP @ 1800RPM, AR#4P1085, LOW MILES, FULLY INSPECTED, Test Run 7- 30-15!!! Runs Perfect!!! Visit Our Website for more information on this engine or any other diesel engine. Call . INV # 002575