transfer flow

Transfer Flow Toolbox and Fuel Tank Combos


$1,975.81 - $2,258.03

+ $225.00 Shipping

Product Details

Product Name: Toolbox and Fuel Tank Combos
Manufacturer: Transfer Flow
Application: Fits Most Diesels
  • Operates with Transfer Flow's patented TRAX-III®, TRAX-II®, or our MaxFlo-TFI operating system
  • Fuel transfers automatically from in-bed fuel tank to stock fuel tank
  • Available in 30, 40 and 50 gallons
  • Gas and diesel systems available
  • Manufactured from aluminized steel or aluminum diamond plate
  • Baffled to reduce fuel sloshing
  • Locking storage compartment
  • Large storage area
  • Nitrogen gas filled shock for easy opening and closing
  • Won't interfere with standard fifth wheel hitch
  • Over 300 authorized fuel tank installers in the US and Canada
  • Locking storage compartment
  • 3 year/unlimited mile warranty
  • Proudly made in the USA!
  • Note: Please provide year, make, model, and bed length to notes on your order.

Available for Dodge, Ford, GM, and Toyota Tundra pickups, our toolbox and fuel tank systems are available in 30, 40, and 50 gallons! They're the all-in-one auxiliary fuel tank and storage box! The toolbox and fuel tank combos come with all components needed for installation (some Ford and GM vehicles require a fillneck adapter kit. See below for information). Our toolbox and fuel tank combos should not interfere with most standard in-bed hitches.

Available optional items:

  • Riser kit - rises toolbox tanks 3 5/8 so you can store items under the tank!
  • Locking gas cap - keeps your fuel safe and secure. Available for our aluminum diamond plate tanks only.

Aluminum Diamond Plate Tanks
The fuel tank, constructed of 14-gauge aluminized steel for superior strength and rust resistance, is mounted inside the shell of the 1/8" bright aluminum diamond plate toolbox. The fuel fill access is located on the driver's side of the pickup on the front of the toolbox. The locking paddle handles keeps your belongings safe and secure. Available in 30 and 50 gallon units. The 30 gallon unit has a storage space of 5 1/2 cubic feet, while the 50 gallon unit has a whopping 9 cubic feet of storage space!

Aluminized Steel (Powder Coated Black)
Available in 30 and 40 gallons, the toolbox and fuel tank is made from 14-gauge aluminized steel for superior strength and rust resistance, and is baffled in two places on all four sides. It is powder coated black for a durable finish. The fillneck is located within the locking storage department. The tank is about flush with most bed rails. The 30 gallon units has 5.1 cubic feet of storage space, while the 40 gallon units has 6 cubic feet of storage space!

TRAX-II Operating System (99-12 Dodge, 99-12 Ford, 01-12 GM)

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!.


*50 Gallon Toolbox & Fuel Tank Combo For 8-Ft. Bed ONLY


TRAX-II Operating System (99-12 Dodge, 99-12 Ford, 01-12 GM)


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