Designed to connect your RDS Auxiliary or Transfer diesel fuel tank to your truck's fuel fill hose. Automatically controls the fuel level going into your OEM tank. Kit includes hoses, clamps and fittings for easy installation. Intended for diesel fuel only. Fits Dodge diesel trucks 2013 â current with 1-3/4 fill line. Made in USA. For safety reasons, the filler neck on RDS fuel tanks prevents them from being overfilled. Actual usable tank capacity is about 95% of the total advertised gallons due to fuel expansion in warmer climates. | RDS Diesel Install Kit for Dodge Diesel Trucks 2013 Current with 1-3/4 Fill Line Made in USA