Engines | Mounts, , (USED) 2003 Caterpillar C12 Diesel Engine with Jake Brakes (70PINECM), Serial # MBL03943, Family # 3CPXH0729EBV, AR # 233-8855, 355HP RATED @ 2100RPM, 505HP MAX, 110,448 MILES, GREAT RUNNER Visit jjrebuilder.com for more information on this engine or any other diesel engine. Call for more information 1-800-971-3019. INV # 002855