More Miles. Fewer Fuel Stops.
Auxiliary Fuel Tank & Toolbox Combo For Diesel Pickup Trucks
The FuelBox auxiliary fuel tanks automatically transfer diesel fuel to your truck’s factory fuel tank while you drive, providing extended driving range & fewer fuel stops. Our auxiliary fuel systems help drivers tow farther, travel longer distances, and spend less time searching for fuel, and more time on the road..
- Patented Plug & Play Automatic Fuel Transfer System
- DOT Compliant for Diesel Fuel
- Nationwide Installation
- American Made
- Heavy-Duty Marine Grade Aluminum Construction
Trusted by Diesel Owners Nationwide
Get Help Choosing a Model
- 3 Year Warranty on Fuel Tank
- 1-Year Auto Fuel Controller Warranty
- 22+ Years in Business
- Family Owned & Operated
Shop Auxiliary Fuel Tanks
Real Customers. Real Results.
Family Owned & Operated Since 2004
Spend More Time Driving and Less Time Fueling
More Miles. Fewer Fuel Stops.
The FuelBox auxiliary fuel tanks automatically transfer diesel fuel to your truck’s factory fuel tank while you drive, giving you extended range, fewer fuel stops, and more time on the road.
What sets The FuelBox apart is our patented Plug & Play Auto Fuel Controller (AFC). Unlike manual transfer systems that require switches, valves or driver involvement, the AFC automatically monitors fuel levels and transfers fuel from the auxiliary tank to your truck’s factory tank as needed.
The result is a seamless fueling experience that increases driving range, reduces downtime, and allows you to focus on the road instead of your fuel gauge.
Why Buy a FuelBox Auxiliary Fuel Tank?
- Increase Driving Range
Travel hundreds of additional miles between fuel stops - Save Time
Reduce unnecessary fueling stops on long trips. - Better Fuel Planning
Fill up when diesel prices are lower and fuel where it's most convenient. - Perfect for Towing
Maintain range while hauling heavy loads, trailers, and equipment. - Fuel on Your Schedule
Avoid unexpected fuel stops and choose safer, more convenient locations to refuel. - Remote Job Sites
Keep working without searching for fuel stations. - Added Peace of Mind
Travel with confidence knowing you have additional fuel capacity when stations are scarce or conditions are less than ideal.
| FuelBox | Standard Tank | |
|---|---|---|
| Refuel While You Drive | ||
| Refuel While You Drive | ||
| Secure Toolbox Storage | ||
| DOT Legal Diesel Design | Varies | |
| Premium Aluminum Construction | Varies | |
| Flush With Truck Bed | ||
| Fuel Transfer Capabilies | ||
| No Drill Warranty Safe Install |
Built for Drivers Who Depend on Their Trucks
Whether you’re towing a horse trailer, hauling equipment, managing a fleet, or traveling long distances, The FuelBox auxiliary fuel tanks provide the additional fuel capacity needed to go farther between fill-ups while maintaining valuable truck bed functionality.
RV & Fifth-Wheel Owners
Travel farther with fewer interruptions.
Hotshot Drivers
Maximize driving time and efficiency.
Fleet Operators
Improve efficiency and reduce downtime.
Farmers & Ranchers
Reduce trips back to town for fuel.
Contractors
Stay productive on remote job sites.
How FuelBox Auxiliary Fuel Tanks Work
- Fill the auxiliary tank.
- Drive as normal.
- Transfers fuel to your factory tank while you drive.
- No fuel cans
- No manual transfers
- Fewer fuel stops
- More time on the road
Ready to Extend Your Truck's Driving Range?
Find the FuelBox auxiliary fuel tank that fits your truck and enjoy fewer fuel stops, longer range, and greater convenience on every trip.
