2022 Peterbilt 579 – 450HP Sleeper | Matched Units Available This 2022 Peterbilt 579 is powered by the proven Cummins X15 rated at 450HP and paired with a smooth, fuel-efficient Eaton Fuller 12-speed Endurant. Featuring a spacious 80" sleeper and brand-new drive and steer tires, this truck is ready for immediate long-haul service. Multiple matched units available, making it easy to expand your fleet with consistent specifications. Stock #1270480 Road-ready and fleet-approved. 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. Exhaust: Horizontal NumberOfBeds