579, Heavy Duty Trucks - Conventional Trucks w/ Sleeper, Paccar MX-13, 13 Spd, Here it Is!!! Your chance to own THE Peterbilt 579 you have been DREAMING about. This one is Loaded with Goodies, GPS, Fridge, Rear Window, Freedom Inverter and Shore Power, Sleeper Access Door, 485 hp, 1750 ft./lb Torque. Under 400k miles. HURRY and call BLAKE before its Gone. 801-913-6438, 485 Horse Power, Air Ride Suspension, All Aluminum Wheels, 245 Wheel Base, 11R22.5, Tandem Axle, Ratio, 75 Mid Roof Sleeper