40 Gallon Under Tool Box Refueling Tank System For Gas, Diesel, and Kerosene

Transfer Flow Refueling Tank + ProTech® Tool Box – The Ultimate Truck Bed Solution

Meet the 40-gallon under-toolbox refueling tank system, engineered to fit seamlessly under most over-the-rail toolboxes, including ProTech® Tool Boxes. This combination is perfect for truck owners who demand efficiency, durability, and smart space utilization on every job.

Designed for versatility, the tank comes with a Special Permit from the Department of Transportation, allowing safe transport and dispensing of gasoline, diesel, and kerosene. Built from high-yield 12-gauge U.S. aluminized steel and finished with a durable satin black powder coat, it offers unmatched strength, corrosion resistance, and long-lasting performance. Like all Transfer Flow fuel systems, it includes everything needed for a seamless installation.

For added convenience, the tank features a hose-purge mechanism, allowing any remaining fuel in the hose to be safely returned to the tank. This keeps your truck bed clean, maximizes fuel capacity, and ensures every drop of fuel is ready when you need it.

Why You'll Love It:

• It's low profile height allows it to fit under most over-the-rail toolboxes and bed covers

• Includes 12-volt GPI® fuel pump, 12-ft hose, nozzle, fuel cap, cab-mounted power switch, and mounting hardware

• DOT-approved for gasoline, diesel, and kerosene

• Heavy-duty 12- and 14-gauge U.S. aluminized steel construction

• Durable black powder-coated finish for long-lasting protection

• Hose-purge system for mess-free operation

• Pumps up to 8 gallons per minute

• Baffled design minimizes fuel sloshing during transport

• Backed by a 6-year, unlimited-mileage warranty

• Proudly made in the USA with American-made steel

Note: A cover plate (Part No. 0400117477) is required if the fuel tank is installed without a toolbox.

• DOT Special Permit
• 40 Gallon Under Tool Box Fuel Tanks