2018 PETERBILT 579 Conventional, 722,507 Miles, X15 Efficiency Series 450 H.P. Cummins Engine, Engine Brake, 13 Speed Transmission, 40,000 Lb. Rear Ends, Full Screw, 3.25 Ratio, Air Ride Suspension, 70 Inch High-Rise Walk-In Sleeper, Air Conditioned, Cruise Control, Deep Chrome Bumper, Hydraulic Power Steering, Air Fairing, Stainless Steel Exterior Visor, Stainless Steel Heated Power Mirrors, Prestige Interior, Dual High Back Air Ride Seats, Power Locks, Telescopic Tilt Wheel, Power Windows, Fuel Tank Fairings, Horizontal Exhaust, Side Extenders, Dual Aluminum Fuel Tanks, Auxiliary Bunk Heater, Stainless Steel Quarter Fenders, Air Slide 5th, 244 Inch Wheel Base, 22.5 Low Profile Tires, Aluminum Disc Wheels