13 Gallon DEF Tank, Airliner Suspension, Disc Brakes, Jost JSK37 Series 24" Air Slide No Tilt Fifth Wheel, 60 Gallon + 100 Gallon Fuel Tan, 80 Gallon Hydraulic Tank, 295/75R22.5 Steers + 11R22.5 Drive Tires, Aluminum Wheels, Price Includes CARB22 Warranty, Balance of 5 Year/500,000 Miles Extended Engine Warranty (EW4), 5 Year/500,000 Miles Extended Truck Coverage (TC4), 5 Years Unlimited Mileage Towing