2021 PETERBILT, 579, Heavy Duty Trucks - Day Cab Trucks, PACCAR MX-13, , Single Axle Day Cab, MX13 Paccar 405 HP, Eaton Ultrashift 12 Speed, 2.80 Ratio, 3 Stage Engine Brake, Air Trac, 12,000 FA, 22,700 RA, 155" WB, P/S, A/C, Heated Mirrors, Cruise, Tilt/Tele Wheel, Power Windows, Locks, and Mirrors, High Back Driver Seat, Dual Aluminum Fuel Tanks 90Gal/100Gal, 275/80R22.5 Tires on Steel Wheels, 405 Horse Power, Air Ride Suspension, Wheels, Wheel Base, , Axle, Ratio, , VIN