Cummins Powered Day Cab with 10 new tires!! 2021 Peterbilt 579. Powered by a Cummins X15 at 400 horsepower with an Endurant automated transmission on Peterbilt Low Air Leaf suspension. Fresh PM service and DOT inspected. Ready to roll, call Rush Truck Center of Denver today! Price does not include state and local taxes; tags; registration or title fees; dealer-imposed fees, including document preparation, processing or servicing fees, or any optional equipment or upfitting work selected by buyer. Valid while supplies last. Images shown may not reflect actual vehicle.