2019 PETERBILT, 579, Heavy Duty Trucks - Sleeper Trucks, CUMMINS X15, Automatic, 2019 Peterbilt 579 - Here is a 1 owner fleet maintained Peterbilt 579! This truck is sweet! She is very clean and drives great! Cummins X-15 450HP Engine, 12 Speed Automatic Transmission, Mid-Roof Sleeper! 408k 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