2015 Western Star 4900. 550HP Detroit DD15. 10 Speed Transmission. Only 527,000 Original Miles. 46,000LB Full Locking Rears. 14,320LB Steer Axle. Airliner Suspension. Loaded Interior. Leather Driver Seat. Gauge Package. Air Slide Fifth Wheel. 11R24.5 Tires. Stainless Steel Rear Quarter Fenders. Aluminum Headache Rack. Engine Brake. Cruise Control. Dual Stacks. Dual Breathers. Clean Western Star 4900