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

SKU 0800116188

Availability: In-Stock

Original price $3,208.05
Original price $3,208.05 - Original price $3,208.05
Original price $3,208.05
Current price $2,467.73
$2,467.73 - $2,467.73
Current price $2,467.73

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

Fits: 2008-24 Ford, 2010-24 GM, 2010-24 Dodge/Ram
Dimensions: 59"L x 21"W x 21"H

Our team knows the Transfer Flow catalog inside and out. So no matter your application, we can help you pick out the perfect tank setup. Elite Truck was founded by a diesel mechanic, and that heritage has helped the Elite Truck team excel in tank product support.

After you order is when the Elite Truck team shines, we use the highest-rated carriers and significant packaging protection. But, even with these precautions, damages happen. Being the #1 toolbox dealer on the internet for several years running, we know this better than most. That's why we have a dedicated damages team that will take care of any problem 100%.

Considering our excellent pricing, selection, inventory, and customer service, we would be honored to earn your business.

Damage Free

Less Than 1% Damage Rate on Transfer Flow Products

Made In The USA

Transfer Flow Tanks Are Proudly Made In The USA

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Transfer Flow 40 Gallon Auxiliary Diesel Fuel Tank and Tool Box Combo

The 40 Gallon Auxiliary Diesel Fuel Tank and Tool Box Combo

The 40 Gallon Auxiliary Diesel Fuel Tank and Tool Box Combo

The all-in-one auxiliary fuel tank and tool box combo is the best of both worlds, providing more fuel and secure storage for all your adventures. Our 40-gallon fuel tank and tool box combo sits nearly flush with most pickup bed rails and won’t interfere with most standard fifth wheel hitches. With 6 cubic feet of storage space and locking paddle handles, you can rest easy knowing your cargo and fuel is secure.The auxiliary system is computer-controlled by our patented TRAX 4™ operating system with patented AutoTrans® technology. Computer-controlled automatic fuel transfers mean worry-free operation, and much safer and more reliable operations than gravity fed systems. Based on the capacity of your vehicle's main fuel tank and the capacity of the Transfer Flow fuel tank, the TRAX 4™ system will transfer fuel at predetermined fuel levels while the vehicle is in operation.

The 40 Gallon Auxiliary Diesel Fuel Tank and Tool Box Combo Exclusive Features

The 40 Gallon Auxiliary Diesel Fuel Tank and Tool Box Combo Exclusive Features

- Recommended for drivers who want extra fuel capacity and a safe place to store their gear.

- TRAX 4™ computer-controlled automatic fuel transfers for worry-free operation with exclusive AutoTrans® technology.

- DOT legal for gasoline, diesel, methanol/ethanol, and kerosene.

- Perfect for RVers, contractors, and outdoor enthusiasts.

- Comes complete with all components needed for installation.

- Built from ReliaSteel®, high-yield U.S. aluminized steel for superior durability and strength.

- Powder coated black for a durable satin black finish.

- 6 cubic ft. of storage space (Storage dimensions: 59” L × 18” W × 9 3/4” H).

- Gas-filled shocks for easy opening and closing.

- Stainless steel locking paddle handles

-Baffled to prevent fuel sloshing.

- 6 year, unlimited mile warranty.

- Proudly made in the USA.

Dimesions and Shipping Information

Dimesions and Shipping Information

- See dimension drawing image for exact dimensions.

- Dimensions: 59"L x 21"W x 21"H

- Fits: 2008-23 Ford, 2010-23 GM, 2010-23 Dodge/Ram

- Shipping Weight: 202 lbs

- Shipping Dimensions: 68"L × 27"W × 29"H

- All Transfer Flow fuel tanks systems ship via freight. The freight shipment will need to be signed for, so make sure someone is ready to unload, inspect, and receive the order.

Fuel Level Display

Fuel Level Display

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, you’ll be able to monitor your pickup’s fuel capacity! During fuel transfer, the message “PUMP ON” 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 our TRAX 4™ app with your auxiliary tank but still want to know how much fuel you have, Transfer Flow offers an in-cab fuel level monitor LCD. 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 pickup’s main fuel tank. This item is sold separately and can be added to your cart by simply selecting the option above.

High-Quality Transfer & Auxiliary Tanks

With American Made Quality And Sleek Designs Transfer Flow Has Become A Customer Favorite.

The Elite Promise

The Elite Promise

We promise to make it right 100% of the time. We'll take care of any damages or defects, no matter the issue. Just contact our highly-rated USA-based commercial customer service team. Know any purchase from comes with the industry's most comprehensive product & service guarantee.

Customer Reviews

Based on 3 reviews
Great product for F450

This tank and box combo has been great in my 2019 F450. It allows me to travel a full day pulling a load without stopping for fuel. The transfer process is easy and the app is stable and simple to use. The fit is great as it hides just below the sides of the bed. I would definitely recommend this product. FYI, I had it installed instead of doing it myself.

Glen in SLC
Auxiliary 40 gal and Toolbox combo

This thing is bad to the bone! Just took a trip hauling my 40 ft 5th wheel and the auxiliary fuel tank came on at around half a tank and continually kept me at that level. I got about 7 miles to the gallon during this trip, but my total range was still around 500 miles vs 200 before having to stop for fuel. The phone app was difficult to get paired, but I think it had more to do with my phone then the software. Installation was not difficult but the directions could use some pictures for those of us that are visual learners, that being said there were plenty of videos on YouTube to look at. The size of the toolbox is great for items as large as box of def and there is plenty of room for other items. Very happy with this purchase and the customer support while installing it. I put this guy in a 2024 Chevy 3500, not the dually. Thanks fellas!