2018 PETERBILT, 579, Heavy Duty Trucks - Sleeper Trucks, CUMMINS X15, Manual, 2018 Peterbilt 579 Ultraloft Fleet Maintained Peterbilt! 450HP Cummins X15 Engine, 13 Speed Eaton Fuller Manual Transmission, Mid Roof Sleeper! This truck has 730k Miles. This truck has also 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, Ratio, Mid Roof Sleeper, VIN