Transfer Flow 40 Gallon In-Bed Under Tool Box Auxiliary Diesel Fuel Tank System Model 0800117470
✅ COMPLETE FUEL SYSTEM
Includes the tank and the major operational components required for a functioning fueling system. Unlike a tank-only purchase, this system ships with the TRAX 4™ computer-controlled transfer system and a complete installation kit, so you are not piecing together components from multiple suppliers.
Combining a 40-gallon in-bed auxiliary fuel tank with a ProTech® Tool Box provides the ultimate truck bed solution. Its sleek, low-profile design fits under most over-the-rail toolboxes, including ProTech® models, and tucks neatly beneath tonneau covers for a clean, integrated look. Constructed from high-yield 12-gauge U.S. aluminized steel with a durable satin black powder-coated finish, this tank delivers exceptional strength, corrosion resistance, and long-lasting performance.
The system is powered by the patented TRAX 4™ operating system, offering computer-controlled automatic fuel transfers that are safer and more reliable than traditional gravity-fed systems. TRAX 4™ monitors the vehicle’s main fuel tank and the auxiliary tank, automatically transferring fuel at predetermined levels while the vehicle is in operation. For added convenience, the TRAX 4™ mobile app allows for real-time monitoring of fuel levels directly from a smartphone.
Features & Benefits
Specifications
| Attribute | Details |
|---|---|
| Material | 12- & 14-Gauge U.S. Aluminized Steel |
| Tank Capacity | 40 Gallons |
| Finish | Satin Black Powder Coat |
| Operating System | TRAX 4™ Computer Controlled |
| Construction | Robot-Welded, Baffled |
| Mount Style | In-Bed (Under Toolbox/Cover) |
| Warranty | 6-Year / Unlimited Mile |
| Origin | Made in USA |
| Required Part | Cover Plate (PN 0400117477) if installed without toolbox |
Warning: Proper Use of Auxiliary Tanks
To ensure safety and optimal performance, do not exceed the manufacturer”s specified maximum fill capacity for your auxiliary tank. Always follow the manufacturer”s filling, venting, and operating instructions. Overfilling the tank beyond its rated capacity can lead to:
Safe Filling Recommendations
By following these precautions and the manufacturer”s specified fill capacity, you can help ensure the safe and reliable use of your auxiliary tank while protecting your vehicle, property, and the environment.
If you have questions about the proper use or specifications of this tank,


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