2026 Peterbilt 579 UltraLoft Sleeper Truck for Sale | Cummins X15E | 500 HP | 13 Speed Stock # TD813951 Location: Portland, Oregon New 2026 Peterbilt 579 UltraLoft sleeper truck for sale. This long-haul spec is loaded with premium features, excellent fuel capacity, and driver comfort upgrades, ready for over-the-road use. Engine & Drivetrain: Cummins X15E, 500 HP 13-Speed Manual Transmission CARB Compliant (Idle Reduction) Axles & Suspension: - 13,200 lb Front Axle - 40,000 lb Rear Axles - 3.08 Rear Ratio - Low Air Leaf Suspension - Full Disc Brakes - 236” Wheelbase - Sliding Fifth Wheel Wheels & Tires: - 295/75R22.5 Michelin Front Tires - 445/50R22.5 Michelin X One Line Energy D2 Super Singles Fuel & Aero: - Dual 150 / 110 Gallon Fuel Tanks - Full Aerodynamic Package for Improved Fuel Economy Sleeper & Interior: - 80” UltraLoft Sleeper - Platinum Interior Package - Smartsound Cab Insulation - Leather Smart Steering Wheel - Keyless Entry Electronics & Driver Features: - 7” Navigation Screen with Apple CarPlay - Factory RAM Mount - Dual USB Charging Ports Comfort & Amenities: - 1800W Inverter with Shore Power - Fuel-Fired Sleeper Heater - Refrigerator - Second Bunk - Thermal Insulation Package - TV Mount - Full Cabinet Storage This Peterbilt 579 UltraLoft for sale is ideal for owner-operators and fleets looking for a new Peterbilt sleeper truck with top-tier specs, fuel efficiency, and premium comfort. Call Jayce Dempsey in Sales for price, availability, and financing options.