2021 PETERBILT, 579, Heavy Duty Trucks - Sleeper Trucks, CUMMINS X15, AMT, 2021 Peterbilt 579 Ultraloft - 1 Owner Fleet Maintained Truck! 450HP Cummins X15 Engine, 12 Speed Eaton Endurant Automatic Transmission with only 416k miles and 11k hours! This truck has been serviced and DOT inspected. Call, text or message Steven at (6.1.6.) - 6.0.0. - 2.6.8.2., 450 Horse Power, Air Ride Suspension, Wheels, Wheel Base, , Axle, 2.79 Ratio, Mid Roof Sleeper, VIN