"2016 Peterbilt 579, Cummins, ISX15, 450HP, Fuller 10 Spd SmartAdvantage Transmission, Sleeper, Stock # 471611 2016 Peterbilt 579. This 2016 Peterbilt 579 is part of a group of trucks we took in on trade. The trucks have a 450 HP Cummins ISX Engine, 10 Speed Transmission, 3.08 Ratio, 236in Wheelbase, Flex Air Suspension. These trucks were setup for fuel economy. Currently we have 2 in Tulsa and both have been sent through the shop and are ready to roll. Call or come by Rush Truck Center Tulsa and let one of our sales professionals tell you about this or any of our trucks in inventory as well as the great financing options currently available."