2009 Peterbilt 388. 525HP Cummins ISX15. 18 Speed Transmission. Only 766,000 Original Miles. 40,000LB Full Locking Rears. Air Trac Suspension. Dual Line Wet Kit. Loaded Interior. Gauge Package. Concert Class Stereo. Air Slide Fifth Wheel. 11R24.5 Tires. Poly Rear Full Fenders. Aluminum Headache Rack. Strobe Lights. Engine Brake. Cruise Control. Dual Stacks. Dual Breathers. Clean Peterbilt 388