2023 Ford Super Duty F-350 Crew Cab XL 4-Door RWD Pickup

Includes: Hardened Engine Intake Valves and Valve Seats Bi-Fuel manifold. (NOTE: This package does not include CNG/Propane fuel tanks, lines, etc. Vehicle will be equipped with the standard factory gasoline fuel system. Additional equipment combined w/Certified calibration reflash is required, from an external upfitter, to convert the vehicle to a CNG/Propane fueled vehicle. See Alternative Fuel Buyers Guide: www.ford.com/altfuelbuyersguide Ford Motor Company does not provide an exhaust or evaporative emissions certificate w/this option when converted to use CNG or Propane fuel. Ford does not represent that a vehicle converted to use CNG or Propane will comply w/all applicable U.S. or Canadian safety standards. It is the responsibility of the final stage manufacturer (body-builder, installer, alterer or subsequent stage manufacturer) to determine that any vehicle converted to use CNG or Propane complies w/U.S. Federal, California or Canadian exhaust and evaporative emission requirements, Federal fuel economy standards, U.S. and Canadian safety standards, labeling and any other requirements)

Includes: Heavy service front springs (1 up upgrade above the spring computer selected as a consequence of options chosen. Not included if maximum springs have been computer selected as standard equipment) (Recommended only on vehicles which will permanently utilize aftermarket equipment such as Heavy-Duty winches, brush guards or other apparatus which loads the front axle to the specified Gross Axle Weight Rating (GAWR)) (Note 1: May result in deterioration of ride quality when vehicle is not equipped with front end utility attachment. Note 2: Vehicle ride height will increase with the addition of this package)