Downtown Diesel Engine Parts, Inc. is an e-store that offers comprehensive lines of diesel engine parts for Caterpillar, Cummins, Detroit Diesel, and Navistar. We offer the following: new and remanufactured parts for cooling systems, crankshaft seals, custom gasket sets, cylinder kit components, engine bearings, fuel systems, gasket lubrication systems, to name a few. Along with parts for the trucking application, we also offer replacement parts for industrial and marine applications. Our sales counter is opened daily from 7:30 until 5:00 pm and 8:00 am until noon on Saturdays. Our website is available 24/7/365.