Transfer Flow is the leader in aftermarket fuel tank systems. Our family of dedicated employees serves our customers, community, and country by engineering and manufacturing superior quality “Made in the USA” fuel systems and vehicle accessories. Transfer Flow is THE choice for drivers who demand premium performance from their trucks. We use top-quality components, and high-yield domestic aluminized steel or aluminum diamond plate to ensure maximum corrosion resistance, strength and durability. Our American-made products have stood the test of time for more than 33 years. With more than 275,000 tanks sold, Transfer Flow is the premier supplier of fuel tank systems in the world.