Transfer Flow is the leading American manufacturer of precision-engineered fuel systems, proudly designing and building fuel tanks and retrofit filler neck kits in Chico, California and Algood, Tennessee. From high-capacity replacement tanks to in-bed auxiliary systems, refueling tanks, and tank-and-toolbox combinations, our products are built for real-world performance. Driven by innovation and craftsmanship, we create durable, compliant solutions that extend range, maximize efficiency, and deliver uncompromising reliability wherever the road or job demands with American-made quality built into every level.