



Transfer Flow Under Toolbox Auxiliary Tank 0800117470
The Transfer Flow 40 gallon Under Tool Box Auxiliary fuel tank is designed to fit underneath bed rail toolboxes.
The low profile steel auxiliary fuel tank transfers diesel fuel using Transfer Flow's patented TRAX 4⢠operating system. The under toolbox auxiliary tank is designed to fit short and long bed trucks.
Sizes:
- 40 GallonĀ - 49 inches long x 27 inches wide x 12.25 inches high.
Fits:
- 40 GallonĀ -Ā 2008-24 Ford, 2011-24 GM, 2010-24 Dodge/Ram
Restrictions:
- Does not fit on 2013-24 Ram short bed with 5th wheel prep package.
- 2010-12 Ram Mega Cab & crew cab short bed pickup with single rear wheels require a filler neck part.
- Cover plate accessory required to protect tank when not using the tank with a bed rail toolbox.
40 Gallon Under Toolbox Aux Tank

FEATURES
- Built from 12 and 14 gauge high yielding US aluminized steel.
- Includes all components for installation.
- Fits under most tonneau bed covers.
- Robot-welded seams provide extraordinary strength.
- TRAX 4⢠computer-controlled automatic fuel transfers for worry-free operation with exclusive AutoTrans® technology.
- Baffled to prevent fuel sloshing.
- 6 year, unlimited mile warranty.
- Made in the USA.
Want to know the status of your on-board fuel systems? Simply download the TRAX 4⢠app to your smart phone and enter your vehicle and fuel system information. In no time, youāll be able to monitor your pickupās fuel capacity! During fuel transfer, the message āPUMP ONā will be displayed. You also have the option of displaying either the gallons or the percentage of fuel in each tank.
If you prefer not to use the TRAX 4⢠app with your auxiliary tank but still want to know how much fuel you have, Transfer Flow offers an optional in-cab fuel level monitor LCD.Ā
The LCD shows the fuel level of the auxiliary tank with an easy-to-read bar graph that decreases when fuel is transferred to the pickupās main fuel tank.
Other Auxiliary Tank Options:
- Transfer Flow Auxiliary Tank
Original: $2,439.00
-65%$2,439.00
$853.65Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Transfer Flow 40 gallon Under Tool Box Auxiliary fuel tank is designed to fit underneath bed rail toolboxes.
The low profile steel auxiliary fuel tank transfers diesel fuel using Transfer Flow's patented TRAX 4⢠operating system. The under toolbox auxiliary tank is designed to fit short and long bed trucks.
Sizes:
- 40 GallonĀ - 49 inches long x 27 inches wide x 12.25 inches high.
Fits:
- 40 GallonĀ -Ā 2008-24 Ford, 2011-24 GM, 2010-24 Dodge/Ram
Restrictions:
- Does not fit on 2013-24 Ram short bed with 5th wheel prep package.
- 2010-12 Ram Mega Cab & crew cab short bed pickup with single rear wheels require a filler neck part.
- Cover plate accessory required to protect tank when not using the tank with a bed rail toolbox.
40 Gallon Under Toolbox Aux Tank

FEATURES
- Built from 12 and 14 gauge high yielding US aluminized steel.
- Includes all components for installation.
- Fits under most tonneau bed covers.
- Robot-welded seams provide extraordinary strength.
- TRAX 4⢠computer-controlled automatic fuel transfers for worry-free operation with exclusive AutoTrans® technology.
- Baffled to prevent fuel sloshing.
- 6 year, unlimited mile warranty.
- Made in the USA.
Want to know the status of your on-board fuel systems? Simply download the TRAX 4⢠app to your smart phone and enter your vehicle and fuel system information. In no time, youāll be able to monitor your pickupās fuel capacity! During fuel transfer, the message āPUMP ONā will be displayed. You also have the option of displaying either the gallons or the percentage of fuel in each tank.
If you prefer not to use the TRAX 4⢠app with your auxiliary tank but still want to know how much fuel you have, Transfer Flow offers an optional in-cab fuel level monitor LCD.Ā
The LCD shows the fuel level of the auxiliary tank with an easy-to-read bar graph that decreases when fuel is transferred to the pickupās main fuel tank.
Other Auxiliary Tank Options:
- Transfer Flow Auxiliary Tank




















