Transfer Flow, Inc. - Aftermarket Fuel Tank Systems - IN-BED AUXILIARY FUEL TANKS
Find The Perfect Fuel Tank

IN-BED AUXILIARY FUEL TANKS

Our auxiliary fuel tanks are available in a variety of sizes to fit your specific needs, ranging from 37 to 100 gallons. Whether you need extra fuel capacity for long hauls, RVing, off-roading adventures, or just everyday convenience, Transfer Flow has the perfect solution for you.

With an auto-transfer auxiliary fuel tank from Transfer Flow, you can extend your driving range and have the peace of mind knowing you won’t run out of fuel on long trips or in remote areas. 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.

Transfer Flow's auxiliary fuel tanks are made in the USA and manufactured from American-made aluminized steel. Each fuel tank system comes with all parts needed for installation and have internal baffles for extra strength and durability.

Upgrade your pickup truck with a Transfer Flow auxiliary fuel tank and experience the freedom and convenience of extended driving range.

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40 Gallon In-Bed Under Tool Box Auxiliary Fuel Tank System - TRAX 4

You'll get a winning combination when you match our 40-gallon in-bed auxiliary fuel tank with your over-the-bed-rail tool box!

$2183.03/EA
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37 Gallon In-Bed Auxiliary Fuel Tank System - TRAX 4

Our 37-gallon in-bed auxiliary fuel tank system is designed to fit under a Pace-Edwards and Truck Covers USA retractable canister bed covers.

$2106.20/EA
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40 Gallon In-Bed Auxiliary Fuel Tank System - TRAX 4

Our 40-gallon in-bed auxiliary fuel tank system is designed to be compatible with most diesel trucks for a universal fit.

$1870.62/EA
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50 Gallon In-Bed Auxiliary Fuel Tank System - TRAX 4

More than double your driving distance when you install a 50-gallon in-bed auxiliary fuel tank system.

$1745.26/EA
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75 Gallon In-Bed Auxiliary Fuel Tank System - TRAX 4

Investing in an extra 75 gallons of onboard fuel gives you invaluable peace-of-mind on the road.

$1889.76/EA
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100 Gallon In-Bed Auxiliary Fuel Tank System - TRAX 4

This tank is our biggest in-bed auxiliary fuel tank, holding up to 100 gallons of additional fuel to go the distance without needing to stop for fuel.

$2177.82/EA
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