Engines | Mounts, , (USED) Caterpillar 3304PC Diesel Engine, Serial # 43V19305, AR # 7N3593, 139HP, HIGH 2390 RPM, LOW HOURS AFTER REMAN, PERFECT RUNNING ENGINE!! TEST RUN 3-22-17. Call for more information on this or any other diesel engine 1-800-971-3019. or visit jjrebuilders.com. INV # 003254