2020 Peterbilt 389. 525HP Cummins X15. 13 Speed Transmission. 40,000LB Rears. Steerable Air Lift Axle. Only 229,000 Original Miles. Air Trac Suspension. Loaded Interior. Gauge Package. Concert Class Stereo. Steer Axle Disc Brakes. Air Slide Fifth Wheel. 11R24.5 Tires. Poly Rear Quarter Fenders. Engine Brake. Cruise Control. Dual Breathers. Clean Peterbilt 389