Transfer Flow In-bed Auxiliary Tanks Fit Dodge, Ford, and GM Gas and Diesel Pickups!

Transfer Flow's in-bed fuel tank systems are available in 37, 50, 75, and 98 gallon fuel tanks, and are available for diesel and gas pickups! Our gas systems meet federal and California Air Resources Board emissions regulations. Our in-bed tanks are baffled in three places and come with all components needed for installation. They operate using our patented TRAX-II™ or Express-UFS™ operating systems. Press here for dimensions of our in-bed tanks.

37 Gallon Fuel Tank
Our 37 gallon in-bed fuel tank fits short and long bed pickups. It's designed to fit under Pace-Edwards™ and Truck Covers USA™ retractable bed covers. It's available in powdercoated black aluminized steel. Transfer Flow installs Pace-Edwards retractable covers!

SPECIAL! FREE installation on a Pace-Edwards cover when we install both the 37 gallon tank and Pace-Edwards cover at our Chico, California facility! Limited time only! Call 1-800-442-0056 to schedule an installation!

50 Gallon Fuel Tank
The height of this tank allows it to fit under a tonneau cover. This tank fits short bed and long bed pickups, and is available in either 14 gauge aluminized steel, which is powder coated black, or bright aluminum diamond plate.

75 Gallon Tank
Our 75 gallon in-bed fuel tank fits short and long bed pickups. It's available in powdercoated black aluminized steel only.

98 Gallon Fuel Tank
Our 98 gallon fuel tank fits long bed pickups only, and is available in either 14 gauge aluminized steel, which is powder coated black, or bright aluminum diamond plate.

TRAX-II™ Operating System
TRAX-II™ consists of an auxiliary fuel tank, an in-line pump, an auxiliary sending unit, a wire harness, an installation kit, and a dash mounted LCD computer module.

TRAX-II™ functions similar to a computer controlled balance line. The computer determines the fuel level of the stock tank, the level of the auxiliary tank, and the status of the vehicle’s fuel system once every few seconds.

When necessary, the TRAX-II™ module will turn on the auxiliary fuel pump and transfer fuel to the main tank. The message, “PUMP ON” will be displayed on the dash mounted LCD when this is occurring. The main tank and auxiliary tank will decrease at the same rate. The LCD will display the gallons in the main tank, the auxiliary tank, the combined fuel levels, and the operational status of the fuel systems. In some vehicles, the OEM fuel gauge will show the combined amount of fuel in the main and auxiliary fuel tanks.

With the addition of TRAX-II™, there’s no need for a toggle switch to flip back and forth between the main and auxiliary tank. The TRAX-II™ module does the transferring of fuel for you!

Express-UFS™ Operating System
Transfer Flow’s Express-UFS™ auxiliary system comes preassembled and consists of an auxiliary fuel tank, an in-line pump, a draw tube, a wire harness, and a computer module.

The computer module will turn on the auxiliary pump when the fuel level on the OEM fuel gauge drops between 3/8 to 5/8. The auxiliary tank will then transfer fuel into the main tank until the OEM fuel gauge rises to about 5/8 to 7/8 full. The transferring of fuel at set intervals will occur until the auxiliary tank is empty. When the fuel level of the OEM gauge drops below 3/8 of a tank, the user knows that the auxiliary tank is out of fuel, and the OEM tank only has 3/8 of a tank remaining. Unlike a switch and valve system, the operation of the Express-UFS™ computer module is transparent to the user. Transfer Flow’s Express-UFS™ fuel tank systems do not include a dash mounted LCD. The LCD display only comes with our TRAX-II™ operating system.

NEW Upgrade! Express-UFS™ Momentary Switch with LED Light
When you hold down the momentary switch, you can manually transfer fuel from the auxiliary tank into the main tank, or turn off the fuel pump to stop the transferring of fuel. The LED light signals when fuel is being transferred from the auxiliary tank into the main tank.

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— Aluminized Steel (Powder Coated Black) Fuel Tanks —

— Aluminum Diamond Plate Fuel Tanks —

CODES
A = On 2004 GM diesel pickups, check the pickup’s Vehicle Identification Number (VIN) prior to ordering. Your pickup will have an LB7 engine if there is a “1” in the eighth digit of the VIN number. Your pickup has an LLY engine if there is a “2” in the eighth digit of the VIN number. Please indicate your GM pickup’s engine type when ordering this product for the 2004 model year.
B = 2001 - 2010 GM 4500/5500 cab chassis must purchase an Express-UFS/TRAX-II Fillneck Adapter Kit (part # 050-01-12150)
C = 2001 - 2010 GM pickups and 1992 - 1997 Ford pickups must purchase an Express-UFS/TRAX-II Fillneck Adapter Kit (part # 020-01-14278)
D = Available for Non-California emissions vehicles over 8600 GVW only.

— Optional Items —

Momentary Switch
Our momentary switch allows you to manually transfer fuel from the auxilary tank to main tank or to turn off the transferring of fuel. Comes with LED light.

Fill Through Your Camper Shell
Our Camper Shell Fillneck Kit allows you to fill our cross-the-bed fuel tanks through a camper shell. Kits available for 4 or 7 inches of clearance. Measure from the end of the camper shell rearward to find available clearance (measure inside and outside of shell).

Locking Gas Cap Available
Now you can keep your fuel secure with a locking gas cap. We can even key two caps alike so one key opens up two caps --- one for your Transfer Flow in-bed fuel tank and one for your stock fuel tank!

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