Transfer Flow 40 Gallon Auxiliary Diesel Fuel Tank Tool Box Combo - TRAX 4 (0800116188)

Sale price


Regular price $3,855.17
Selling fast - 1 left
Ask a question

Please allow an additional 3-4 days for shipping for this tank.

Transfer Flow 40 Gallon Auxiliary Diesel Fuel Tank: Fuel and Storage Solution for Your Adventures

The Transfer Flow 40 Gallon Auxiliary Diesel Fuel Tank is an all-in-one solution for your fuel and storage needs. This auxiliary fuel tank and tool box combo provides more fuel and secure storage for all your adventures, making it a must-have for any off-road enthusiast.

Quality Construction and Design

Built from ReliaSteel®, high-yield aluminized steel, this fuel tank and tool box combo offers superior durability and strength. It's powder coated black for a durable satin black finish, ensuring it can withstand the rigors of off-road adventures.

Dimensions and Compatibility

The tank measures 59" in length, 21" in width, and 21" in height, while the tool box measures 56-3/4" in length, 16-5/8" in width, and 9-3/4" in height. This combo sits nearly flush with most pickup bed rails and won't interfere with most standard fifth wheel hitches.

Dimensions: 59"L x 21"W x 21"H
Fits: 2008-22 Ford, 2010-23 GM, 2010-23 Dodge/Ram

Automated Fuel Transfers

The TRAX 4™ system features computer-controlled automatic fuel transfers for worry-free operation. Based on the capacity of your pickup’s main fuel tank and the capacity of the Transfer Flow auxiliary fuel tank, the TRAX 4™ system transfers fuel at pre-determined levels from the auxiliary tank to the main tank while the vehicle is in operation.

Secure Storage Space

With 6 cubic feet of storage space and locking paddle handles, you can rest easy knowing your cargo and fuel is secure. The gas-filled shocks ensure easy opening and closing of the tool box.

Warranty and Support

Transfer Flow stands behind the quality of their products. This auxiliary fuel tank and tool box combo comes with a limited 6-year or unlimited mile warranty for your peace of mind.

Additional Features

This combo is recommended for drivers who want extra fuel capacity and a safe place to store their gear. It's perfect for RVers, contractors, and outdoor enthusiasts. The tank and tool box are baffled to prevent fuel sloshing, ensuring a smooth ride even on rough terrains.

40 Gal
Installation Type
Aluminized Steel
59 in
21 in
21 in
Powder Coat Black
ltl shipping
202 lb
Winch Use
DOT Approved For Direct Feed Into OEM Fuel Tank
Number Of Lids Or Doors
Tool Box Info
With Chest Tool Box
Locking Type
Locking Cap
Liquid Type
Transfer Flow Logo

    TRAX 4™

    Want to know the status of your on-board fuel systems? Simply download the TRAX 4™ app to your smartphone and enter your vehicle and fuel system information. In no time, you’ll be able to monitor your pickup’s fuel capacity!
    App Install Details
  • Unlimited Mile


    Transfer Flow fuel systems and parts are covered by a six-year unlimited mile warranty against defects in material and workmanship throughout the U.S. and Canada from the unit purchase date by the original purchaser for the original vehicle the unit was installed in.
  • Need Help?

    Fuel Tank Installers

    Transfer Flow has built an extensive network of 196 authorized installers throughout North America, all of which undergo thorough screening and have demonstrated the ability to install multiple fuel systems from each of our main product lines.
    Installer Map
  • Replacement Fuel Tank

    Increase driving range with a high-capacity aftermarket replacement tank.

  • Transfer Tanks

    Transfer tanks are perfect for refueling vehicles, off-road toys, equipment, and more.

  • Auxiliary Tanks

    Automatically transfer fuel to the main tank with our exclusive AutoTrans® technology

Transfer Flow Combo

Toolbox & Tanks

Discover the unbeatable versatility and reliability of our all-in-one auxiliary fuel tank and tool box combo, where convenience meets practicality in perfect harmony.

40 Gallon Fuel Tank Tool Box Combo

Customer Reviews

Be the first to write a review