2025 Peterbilt 579 Day Cab Dimensions. 579 tractor with 80 double bunk ultraloft sleeper with epiq aero package. Peterbilt model 579 is the most advanced peterbilt truck ever, with an unmatched combination of power and efficiency, advanced technologies and luxurious driver comfort.

Peterbilt model 579 is the most advanced peterbilt truck ever, with an unmatched combination of power and efficiency, advanced technologies and luxurious driver comfort. Of storage and the largest mattresses in the industry.