579, Heavy Duty Trucks - Conventional Trucks w/ Sleeper, Paccar MX, 13 Spd, 2014 PETERBILT 579 FOR SALE DISC BRAKES, SHORE POWER, INVERTER, BUNK HEATER, SMART WHEEL. COME TAKE A LOOK OR CALL FOR MORE INFORMATION!, 485 Horse Power, Low Air Suspension, Aluminum Wheels, 232 Wheel Base, , Tandem Axle, Ratio, 63 Mid Roof Sleeper