2017 PETERBILT, 579, Heavy Duty Trucks - Sleeper Trucks, CUMMINS ISX, AMT, 2017 Peterbilt 579 Ultraloft - Here is a very nice Pete! 1 Owner, Fleet Maintained Truck! Cummins ISX15 450HP Engine, 16 Speed Automatic Transmission, Double Bunk Condo Sleeper, 486k Miles! 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, 2.64 Ratio, Raised Roof Sleeper, VIN