2020 Peterbilt 579 For Sale! *STOCK PHOTOS* of 2020 Peterbilt 579 Fully Loaded Paccar Powered at 455HP | 12 Speed Automatic | With 80 Inch Double Bunk | Hood Mirrors | Air Slide 5th Wheel | Smart Wheel | Dual Air Ride Seats | Comes With A Fridge | Space For Microwave | Lots Of Cabinet Space | Fresh DOT, Detail & Lots More! Financing Available!