Transfer Flow Toolbox and Fuel Tank Combo

From $1,436.74 to $2,145.13
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Product Option:
Dodge | Ford | GM (See Description)
Transfer Flow Inc,
$5 Price Beat Guarantee

Transfer Flow's Toolbox and Fuel Tank Combos Come in 30, 40, and 50 Gallons! Available for Gas and Diesel Pickups!

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)

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 - 2004 GM pickups require a Fillneck Adapter Kit (part # 020-01-14278)
C = 1992 - 1997 Ford pickups require a Retrofit Fillneck Kit (standard box - Part #020-01-09292, Dually box - #020-01-09284
D = Available for Non-California emissions vehicles over 8600 GVW only.
E = Available for non-California Toyota Tundra regular cab, double cab and Crewmax gas pickups.
F = 2001-11 GM long bed pickups require a Bracket Mounting Kit (part #020-01-14222).

Truck Freight Item:  allow 1-2 Weeks for delivery.


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(29 Ratings, 2 Reviews) Average Rating:
40 Gallon toolbox refuel combo
Kenny (Louisiana) 4/21/2013 9:51 PM
I am disappointed with the valve this tanks delivers. For the price I expected higher quality. Coating/black paint is not smooth and has bubbles and runs. The tool box lid is bolted on with small bolts. The nuts are exposed and with a little time and a wrench the lid could be easily removed. Even if the lid wasn't bolted on it could be popped open easily with a large screw driver or pry bar. Not much security for you pump or tools that you would carry. The included pump retails for $200. 15 mins on and 30 mins off is the listed duty cycle. Stickers say not to run pump for more than 5 mins with the nozzle closed, however the pump manufacture recommends much shorter times. The hose does not have swivels at either end and twist and kinks are a pain in the tail. No filter is included. While it shows the filter in the pictures and the plate in the tool box even says the filter is behind. There is no filter of any kind present. Not even the cheap inline type. I will never again buy anything from transfer flow. While it might be a DOT legal refueling tank the quality and craftsmanship is not what I expected. Save you money and deal with a company that has real customer service and cares about their customers and products.
Chief, Montague Fire Department
Jason Vela (Montague, CA) 3/28/2012 6:49 PM
Great product, top quality, and looks great in my Chevy 2500!