2027 Peterbilt 579

2027 Peterbilt 579 High-Roof Sleeper — built for long-haul comfort, fuel-conscious performance, and professional presence. This premium 579 is configured with a PACCAR MX-13 rated at 455 hp and 1,650 lb-ft of torque, paired with a smooth-shifting PACCAR TX-12 automated 12-speed transmission. A 2.79 rear axle ratio, predictive cruise control, and 240 gallons of aluminum fuel capacity support efficient highway operation and extended range. The 80-inch high-roof sleeper features a Prestige Sterling Gray interior, coil-spring mattress, second bunk, refrigerator, sleeper heater, fresh-air heating and air conditioning, 1,800W inverter with shore power, TV provisions, rear audio controls, and abundant storage. Air-ride, high-back driver and passenger seats, a multi-function steering wheel, power windows and locks, heated power mirrors, Bluetooth, USB charging, and a 15-inch digital display add everyday comfort and convenience. Safety and confidence come standard with Bendix ESP stability control, ABS, tire-pressure monitoring, front air disc brakes, a compression brake, and a 40,000-lb PACCAR rear axle with low air-leaf suspension. Finished in Northsea Gray with polished aluminum wheels, chrome standpipes, and aerodynamic styling, this 579 delivers the comfort drivers want, and the capability fleets depend on.