2021 PETERBILT, 579, Heavy Duty Trucks - Sleeper Trucks, CUMMINS X15, Automatic, 2021 Peterbilt 579 - 1 Owner Fleet Maintained Truck! LOW MILES!! This truck is extremely nice! Cummins X15 Engine, Eaton Endurant 12 Speed Automatic, Only 236k Miles! This truck has been Serviced and DOT inspected. Call, text or email Steven at (6.1.6.) - 6.0.0. - 2.6.8.2, 450 Horse Power, Air Ride Suspension, Wheels, Wheel Base, , Axle, Ratio, Mid Roof Sleeper, VIN