2015 Peterbilt 389. Factory Glider. 550HP CAT 6NZ C15. 18 Speed Transmission. Air Ride Suspension. Loaded Interior. Leather Seats. Gauge Package. Concert Class Stereo. Thermo King TriPac Evolution APU. Air Slide Fifth Wheel. 275/80R24.5 Tires. Stainless Steel Rear Half Fenders. Strobe Lights. Engine Brake. Cruise Control. Dual Stacks. Dual Breathers. Clean Peterbilt 389 Glider