Transfer Flow 40 Gallon In-Bed Under Tool Box Auxiliary Diesel Fuel Tank System (0800117470)

Part # TFI-0800117470 Transfer Tank
$2,601.00
Available to order · ships direct
Ships for a flat $229.99Big item: one flat rate to the lower 48 states, shipped direct in about 3–7 business days (larger items come by freight truck, curbside). Or pick it up free in Bemidji, MN.
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30-day returnsOn unused parts in original packaging
Local installProfessional installation in Bemidji, MN
Ships in about 3–7 business daysMost in-stock parts ship direct from the manufacturer's warehouse. Big item: ships for a flat $229.99 to the lower 48 states, or free pickup in Bemidji.
Free pickup in Bemidji, MNChoose pickup at checkout and we'll email you when it's ready.
Need a fitment check?Call (218) 308-0045 before ordering and we’ll help confirm the application.
Buying for a fleet or a work truck? Request a fleet quote for multi-truck orders, or apply for business pricing. Or call (218) 308-0045.
Product details

✅ 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

  • Low-Profile Integration: Designed to fit under most over-the-rail toolboxes and bed covers.
  • Precision Engineering: Robot-welded seams ensure extraordinary structural strength.
  • Ready to Install: Includes a complete installation kit for a seamless setup.
  • Smart Fuel Management: TRAX 4™ automatic fuel transfers ensure hassle-free operation.
  • Heavy-Duty Materials: Built from 12- and 14-gauge high-yield U.S. aluminized steel for superior durability.
  • Anti-Slosh Technology: Fully baffled design prevents fuel movement during transit.
  • Long-Term Protection: Covered by a 6-year, unlimited-mile warranty.
  • Domestic Quality: Proudly made in the USA from American-made steel.

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

Product Guide

Product Guide

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:

  • Fuel Leaks: Excess fuel may escape through vents or seals, posing safety and environmental risks.
  • Increased Pressure: Improper filling or inadequate venting can increase pressure within the tank and potentially damage the tank or connected systems.
  • Compliance Issues: Improperly filled tanks may violate applicable local, state, or federal regulations for fuel transport.

Safe Filling Recommendations

  • This tank is rated to be filled to 100% of its listed capacity. Do not exceed the manufacturer's rated capacity.
  • Use the proper venting system and check all connections for leaks before transport.
  • Follow all applicable local, state, and federal guidelines for the storage, handling, and transport of fuel.
  • Always refer to the manufacturer's specifications and instructions for proper use.

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, please refer to the manufacturer's documentation or contact our customer service team for assistance.

Part number: 0800117470. Brand new from Transfer Flow, shipped direct from the manufacturer.

Shipping & delivery

Typical delivery is 3–7 business days for most in-stock products. Many items ship directly from the manufacturer's warehouse, and tracking is emailed once your order ships. Oversized items such as truck caps, bumpers and some tonneau covers may ship by freight; we'll contact you if special arrangements are needed. Tonneau covers and orders of $100 or more ship free by UPS Ground to the lower 48 states. Big items such as running boards, bed racks, tool boxes, bumpers, grille guards, heavy hitches and tanks ship for one flat rate by order price, from $24.99, to the lower 48 states only; larger items come by freight truck, curbside. Hood shields ship for a flat $29.99. Free pickup in Bemidji, MN is always available. Smaller orders, and orders to Alaska, Hawaii and US territories, pay the UPS Ground rate shown at checkout. Shipping policy

Returns & warranty

Unused parts in their original packaging, with all hardware, can be returned within 30 days of delivery. Custom or special-order items, installed parts and clearance items can't be returned. Contact us before sending anything back so we can help with the right process. Manufacturer warranties apply and vary by brand. Return policy

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Call (218) 308-0045
Transfer Flow $2,601.00