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Questions? Call or Text our US based team: 800-964-5341
Questions? Call or Text our US based team: 800-964-5341

Auxiliary Fuel Tanks for Sale

We offer a full line of Auxiliary Fuel Tanks for sale.  Choose from sizes that start at 30 gallons and increase up to 110 gallons.  We offer a variety of designs including rectangle, L Shaped, wedge, and low profiles. 

Auxiliary fuel tanks allow you to transfer diesel fuel directly into your truck's factory gas tank.  We do not sell Gas Auxiliary Fuel Tanks.

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    ATTA Diesel Extreme Wedge Auxiliary Fuel Tank
    $1,103.00 - $1,477.00
    $1,103.00 - $1,477.00
    $1,103.00 - $1,477.00
    $1,103.00

    ATTA Diesel Extreme Wedge Auxiliary Fuel Tank

    ATTA

    ATTA Aluminum Extreme Wedge Style fuel tanks are constructed from .125 gauge aluminum. Wedge Style tanks are designed for full size Dodge, Ford, a...

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    $1,103.00 - $1,477.00
    $1,103.00 - $1,477.00
    $1,103.00 - $1,477.00
    $1,103.00
    Fuelbox WD85 Save 15% Save %
    $1,941.00
    $1,941.00 - $1,941.00
    $1,941.00
    $1,650.00
    $1,650.00 - $1,650.00
    $1,650.00

    The Fuelbox Wedge Auxiliary Fuel Transfer Tank

    The Fuelbox

    The Fuelbox Wedge Auxiliary Fuel Transfer Tank is an in bed diesel fuel tank. The wedge tank is designed for flatbed pickups only 65 inches long. *...

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    $1,941.00
    $1,941.00 - $1,941.00
    $1,941.00
    $1,650.00
    $1,650.00 - $1,650.00
    $1,650.00
    Save 15% Save %
    Diesel Wedge Auxiliary Fuel Tank 50 Gallon
    $979.00 - $1,298.00
    $979.00 - $1,298.00
    $979.00 - $1,298.00
    $979.00

    ATTA Diesel Wedge Auxiliary Fuel Tank

    ATTA

    ATTA Aluminum standard wedge tanks give you more of the custom look compared to a standard rectangular tank. The standard wedge auxiliary tank is ...

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    $979.00 - $1,298.00
    $979.00 - $1,298.00
    $979.00 - $1,298.00
    $979.00
    ATI Wedge Auxiliary Fuel Tank AUX60W Save 17% Save %
    $855.88
    $855.88 - $855.88
    $855.88
    $706.25
    $706.25 - $706.25
    $706.25

    ATI Wedge Auxiliary Fuel Tank

    Aluminum Tank Industries

    ATI aluminum wedge diesel auxiliary fuel tanks are designed for flatbeds and pickups with a 5th wheel. The tank slopes at a 45 degree angle on the...

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    $855.88
    $855.88 - $855.88
    $855.88
    $706.25
    $706.25 - $706.25
    $706.25
    Save 17% Save %

    Auxiliary Fuel Tank Resources

    See our guide to the best Auxiliary Fuel Systems.

    Unsure of the Best Tank Size? See our Auxiliary Tank Size List by Brand: