This is the ATI Diesel Auxiliary Install Kit for Dodge trucks through 2012. They are designed to connect your ATI auxiliary diesel fuel tank to your truck's fuel filler neck. Automatically controls the fuel level going into your OEM tank. Works with all ATI auxiliary fuel tanks and ATI fuel tank & toolbox combos. Intended for diesel fuel only. Works on diesel powered passenger trucks up through 350 or 3500 vehicle (not on diesel commercial/semi-trucks). The kit includes hoses, clamps and fittings for easy installation. Made in U.S.A. (Lower 48 states only)