Shop the BEST Fuel Tank Systems For Your Truck! Sign In; Transferflow - Premier American-Made Fuel Systems. Cart. 0. Close navigation. Account. Favorites. Cart. 0. Cart. 0. 0 items ( $0.00 ) View the Full Cart ... IN-BED AUXILIARY FUEL TANKS; IN-BED AUXILIARY TANK & TOOL BOX COMBOS; REFUELING TANK SYSTEMS; REFUELING TANK & TOOL BOX …

Upgrade your truck today with a Transfer Flow replacement fuel tank system and experience the convenience and freedom of extended driving range. Say goodbye to frequent fuel stops and maximize your time on the road with Transfer Flow.

Increase your truck’s fuel capacity and driving range with a high-capacity replacement fuel tank system from Transfer Flow. A larger gas tank installed on your truck can significantly reduce the number of stops needed to refuel.

Our auxiliary fuel tank systems are designed to seamlessly integrate with your pickup truck, offering convenience and reliability. Plus, with our TRAX 4™ operating system, you can rest assured that fuel transfers will be smooth and efficient, without requiring any manual intervention.

Whether you’re a contractor, off-road enthusiast, or just need to carry additional onboard fuel in case of emergencies, Transfer Flow has you covered with refueling tank systems that are DOT-legal for gasoline, diesel, and kerosene.

Have Your Tank Installed at Our Factory Located 90 miles north of Sacramento in the beautiful town of Chico, our facility is open Monday - Friday with installation appointments at 7 AM and 11 AM. To check available install dates or to schedule an installation, call (800) 442-0056.

You'll get the convenience of a diesel fuel station in the bed of your truck with our 80-gallon refueling tank. Fuel pump sold separately.

This 50-gallon in-bed auxiliary fuel tank is designed with a low profile and small footprint to fit under most tonneau covers and leave plenty of bed space for you. The auxiliary system is computer-controlled by our patented TRAX 4™ operating system.

Our 40-gallon in-bed auxiliary fuel tank fits half-ton pickups, trucks with utility beds, RamBox equipped trucks, or those with a factory installed 5th wheel prep package or other 5th wheel hitch. You'll be pleased that its low height means it can fit under most standard tonneau bed covers.

The 58-gallon fuel tank system passed extensive emissions testing and has been granted an Executive Order from the California Air Resources Board. The larger fuel tank increases the truck’s driving range, allowing the driver to bypass more …