Engines | Mounts, , (GOOD USED) 1997 Caterpillar C12 Diesel Engine with Jake Brakes (40PINECMCONNECTOR), Serial # 9NS02143, AR # 154-1158, 410HP RATED @1800RPM, Visit JJREBUILDERS for more information on this engine or any other diesel engine. Call for more information 1-800-971-3019 (INV#004594)