2020 Peterbilt 579 semi truck Miles: 190,912 Engine Paccar MX-13 Serial: Y203280 Cylinders: 6 HP: 380 Transmission Automated manual Chassis Axles: Tandem Differential lock: Inter-axle Suspension: Air Dump valves Brakes: Air GVWR: 52,350 lbs Interior AC, Heat Heated mirrors Power windows, Power locks Cruise control Air ride cab Features Deck plate: Aluminum Fifth wheel type: Air operated, Sliding Fuel tank: Dual Tires Size: 295/75R22.5