This 2027 Peterbilt 579 is built for dependable highway performance and driver comfort, featuring an 80" high-roof sleeper with a Prestige Interior in Sterling Gray and a double bunk setup. Powered by a Cummins X15 Efficiency Series engine rated at 450 HP and paired with an Eaton Endurant automated 12-speed transmission, this truck delivers smooth shifting, reliable power, and efficient performance for flatbed or over-the-road applications. It rides on a 13,200 lb front axle with 40,000 lb rear tandems, low air leaf suspension, and 3.08 rear gearing for a stable, comfortable ride. Front air disc brakes and rear drum brakes provide dependable stopping performance, while predictive cruise control helps support efficient operation on the highway. The 24" air slide fifth wheel adds flexibility for different trailer setups. Dual 120-gallon aluminum fuel tanks provide excellent range between stops. Inside, drivers will appreciate the refrigerator, fuel-fired sleeper heater, TV provisions, Bluetooth, USB port, dual USB charging, 1800W inverter with shore power, sleeper audio controls, 15" digital display cluster, and a comfortable Prestige interior built for productivity on the road. Chrome stacks, painted aero bumper, body-color mirror housings, and clean sleeper side extenders give this 579 a sharp, professional look. Let one of our sales professionals tell you about any of our Model 579s in inventory as well as the great financing options currently available.