Call or Text our US based team: 800-964-5341 Mon to Sun 9am-9pm ET
Call our US based team:
800-964-5341
Mon to Sun 9am-9pm ET
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.
The Transfer Flow In-Bed auxiliary fuel tank is designed to be compatible with almost any diesel truck, including half-ton pickups, trucks with uti...
View full detailsAluminum Tank Industries rectangle aluminum auxiliary fuel tank is available in sizes that range from 30 gallons to 55 gallons. These light weigh...
View full detailsAluminum Tank Industries rectangle aluminum auxiliary fuel tank is available in sizes that range from 51 gallons to 66 gallons. These light weigh...
View full detailsThe aluminum ATTA Auxiliary Roll-Top Bedcover Tank is designed to be in conjunction with a roll-top bed cover. The aluminum auxiliary diesel tank ...
View full detailsThe aluminum ATTA Sleeper Diesel Auxiliary Fuel Tank is a 110 gallon rectangular aluminum auxiliary fuel tank designed to fit underneath a truck b...
View full detailsATTA Aluminum Extreme Wedge Style fuel tanks are constructed from .125 gauge aluminum. Wedge Style tanks are designed for full size Dodge, Ford, a...
View full detailsThe low profile Transfer Flow auxiliary fuel tank is designed to fit under tonneau covers. Choose from 40 or 50 gallon sizes. Either option offers...
View full detailsThe Fuelbox Under Tonneau is a low profile fuel tank toolbox combo. This fuel tank toolbox combo is designed to work with most tonneau covers. Th...
View full detailsThe Transfer Flow auxiliary fuel tank and toolbox combo is the best of both worlds, providing more fuel and secure storage for all your adventures....
View full detailsThe 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. *...
View full detailsThe Fuelbox L-Shaped Auxiliary Fuel Transfer Tank is an in bed diesel fuel tank. Choose whether you want to use this fuel tank as a transfer tank o...
View full detailsThe Fuelbox Auxiliary Fuel Transfer Tank is an in bed diesel fuel tank. Choose whether you want to use this fuel tank as a transfer tank or an auxi...
View full detailsATTA Diesel Auxiliary Tank & Toolbox combos provide an ideal solution for securely storing a 50 gallon auxiliary fuel tank and a toolbox in an...
View full detailsThe aluminum ATTA L-Shape auxiliary diesel tank is for long beds only. It comes standard with duel fill necks for easier fueling. L-Shape tanks w...
View full detailsThe aluminum ATTA low profile under toolbox fuel tank is designed for short beds only. The Under Toolbox fuel tank is designed to work in conjunct...
View full detailsATTA Aluminum standard wedge tanks give you more of the custom look compared to a standard rectangular tank. The standard wedge auxiliary tank is ...
View full detailsATTA rectangular diesel auxiliary fuel tanks are designed with .125 aluminum gage and are available in sizes that range from 40 gallons to 110 gall...
View full detailsATTA Low Profile Below Bed Rail rectangular tanks are designed to be used with a hard or soft bed cover. The highest portion of the tank will be b...
View full detailsATI 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...
View full detailsATI aluminum diesel L-shaped auxiliary fuel tanks are designed to work with a crossover style toolbox or chest box. The bottom of the L-shape fits...
View full detailsSee our guide to the best Auxiliary Fuel Systems.
Unsure of the Best Tank Size? See our Auxiliary Tank Size List by Brand:
