This 2027 Peterbilt 579 UltraLoft is built for fuel-efficient long-haul performance and premium driver comfort, featuring an 80" UltraLoft sleeper with a Premier Interior in Sterling Gray and a spacious double bunk setup with ladder access. Powered by a PACCAR MX-13 rated at 455 HP and paired with a PACCAR TX-12 automated 12-speed transmission, this truck delivers smooth shifting, dependable power, and efficient performance for over-the-road applications. It rides on a 13,200 lb front axle with 40,000 lb rear tandems, low air leaf suspension, and fuel-efficient 2.79 rear gearing for a smooth, stable highway ride. Full air disc brakes provide confident stopping power, while predictive cruise control and the EPIQ Aero package help support improved fuel economy on the road. The 24" air slide fifth wheel adds flexibility for a variety of trailer applications. Dual aluminum fuel tanks, including a 135 gallon right-side tank and 120 gallon left-side tank, provide excellent range between fuel stops. Inside, drivers will appreciate Ultraleather seating, refrigerator, fuel-fired sleeper heater, premium mattresses, SmartSound insulation package, 7" infotainment display with Apple CarPlay, premium speaker system with subwoofer, inverter with shore power, TV provisions, and a 15" digital display cluster. With painted aero fairings and bright exterior accents, this UltraLoft has a clean, professional look. Let one of our sales professionals tell you about any of our Model 579 UltraLofts in inventory as well as the great financing options currently available. Delivery available.