This RDS Diesel Install Kit is designed to connect your RDS auxiliary or RDS transfer diesel fuel tank to your truck's fuel fill hose. It automatically controls the fuel level going into your OEM tank. It works with RDS auxiliary fuel tanks, RDS transfer fuel tanks, and RDS fuel tank/toolbox combos. Intended for diesel fuel only. This Diesel Install Kit works on diesel-powered passenger trucks up through 350 or 3500 vehicles (not on diesel commercial/semi-trucks). Kit includes hoses, clamps, and fittings for easy installation. Made in the USA. Works with RDS auxiliary fuel tanks, transfer fuel tanks, & fuel tank/toolbox combos Intended for diesel fuel only Includes hoses, clamps, & fittings for easy installation | RDS Diesel Install Kit for Auxiliary and Transfer Fuel Tanks, Fits Ford (1999-current), Chevy/GMC (2011-current), Dodge (1999-2012)