CATERPILLAR , (GOOD USED/ RUN TESTED/ FULLY INSPECTED) Caterpillar 3406C Industrial Diesel Engine (WATER-AFTERCOOLED), Serial # 6TB65222, AR # 7C6843, 400HP, 3128 HOURS, TEST RUN WATCH VIDEO ON JJ REBUILDERS, Runs Perfect!!!! Visit JJREBUILDERS for more information on this engine or any other diesel engine you may be looking for. Call . REF INV # 005079