Skip to content
Transfer Flow 40 Gallon Auxiliary Diesel Fuel Tank Tool Box Combo - TRAX 4 Model 0800116188

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

SKU 0800116188
$3,178.80
$3,178.80 - $3,178.80
$3,178.80
$2,649.00
$3,178.80
$2,649.00 - $2,649.00
$2,649.00
Save $529.80

Availability: In-Stock

Vehicle Fitment

Specify Year, Make, Model, Bed Length, and Fuel Type of your truck before adding to cart.
Damage Free

Less Than 1% Damage Rate on Transfer Flow Products

Give Us A Call

Transfer Flow Tanks Are Proudly Made In The USA

Chat With Us

The Most Knowledgeable Fuel Tank Reps

The Best Prices

Our Out-The-Door Pricing Can't be beat.

Auxiliary Tanks

Auxiliary Tanks

Transfer Flow’s auxiliary fuel tanks are built for long hauls, off-road adventures, RV trips, and everyday driving, with sizes ranging from 37 to 100 gallons. Each system is designed to integrate with your pickup truck and features the TRAX 4™ operating system for hands-free, automatic fuel transfers. Made in the USA from aluminized steel and reinforced with internal baffles, these tanks deliver unmatched durability and reliability. It's a worry-free way to extend your range and take on any journey with confidence.

Auxiliary Tank and Toolbox Combo

Auxiliary Tank and Toolbox Combo

The Transfer Flow auxiliary fuel tank and tool box combo offers extended fuel capacity and secure storage in one rugged, American-made system. Built from aluminized steel with internal baffles, it’s designed for durability and reliability in any terrain. Featuring the advanced TRAX 4™ operating system, it automatically transfers fuel as you drive—no manual effort required. This all-in-one solution empowers drivers to travel farther, stay organized, and tackle any journey with confidence.

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.

Click Here For The TRAX 4™ User's Guide

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 EliteTruck.com comes with the industry's most comprehensive product & service guarantee.