2021 Peterbilt 579, Cummins, X15, 500HP, Fuller 12 Speed Endurant Transmission, Sleeper, , , Stock # 1151551 This 2021 Peterbilt 579 Sleeper just came in. This truck has a 500 HP Cummins X15 Engine, 472558 Miles, 12-speed Endurant Transmission, 2.79 Ratio, 235in Wheelbase, Flex Air Suspension. Call or come by Rush Truck Centers - Houston 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. Delivery available. Se habla Espanol. Price does not include state and local taxes; tags; registration or title fees; dealer-imposed fees, including document preparation, processing or servicing fees, or any optional equipment or upfitting work selected by buyer. Valid while supplies last. Images shown may not reflect actual vehicle.