2016 Peterbilt 579, 4 matching available. MX-13 455 HP, 13 spd ultrashift transmission, 80 double bunk, fridge, dual stacks. Miles 344.824 Transmission Make: Eaton Transmission Speed: 13 Transmission Type: Automatic Front Tire Size: 225 Rear Tire Size: 225 Color: White Fuel Tank Size: 220 Interior Color: Gray