Cummins is one of the most recognized diesel engine manufacturers in the world, and their ISX15 and X15 engines have powered countless Peterbilt 579, 567, and 389 trucks over the years. This collection includes Cummins-branded filters, sensors, maintenance parts, and components designed to meet factory specifications for Cummins-equipped Peterbilts. Using genuine Cummins parts helps protect engine warranties and ensures compatibility with the precision tolerances these engines demand.