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2017-22 Ford F350, F450, F550 After Axle Auxiliary Fuel Tank System (4020217)

$1,539.00
40 Gallon*, extra heavy duty, frame mounted, after-axle replacement tank.
For F-350, F-450, and F-550 model years 2017-2022.
Availability: In stock
SKU
4020217

40 Gallon*, Generation 6 auxiliary, aft-axle fuel tank, galvanized mounting straps, fuel lines, and TITAN Electronic Controller.

  • • Adds an additional 40 gallons of range to the truck’s fuel system, by transferring fuel to the original equipment, mid-ship tank.
  • • Features TITAN’s famous, military grade, cross-linked polymer, aft-axle tank.
  • • Includes TITAN’s Electronic Controller management system, sending unit, transfer pump, wiring, fuel lines, and mounting straps.
  • • Optional filler neck assembly is also available.

Note: For use with diesel fuel ONLY!

TITAN Fuel Tanks Direct. Original Equipment Replacement, Tanks are manufactured to use the trucks stock/original equipment fuel sending unit. The trucks stock sending unit is removed from the stock tank and mounted into the TITAN tank. They are a direct fit, there are no modifications needed. With use of the stock sending unit, the trucks analog fuel gauge will read correct and accurate with the TITAN tank.

Like all fine TITAN products, this proven design has undergone extensive testing. Our legendary tank products are so tough and well-tested that we back them with a Lifetime Warranty!
For use with diesel fuel only

For F-350, F-450, and F-550 vehicles
For model years 2017-2022.

Our extra large fuel tanks provide freedom; freedom to chase your dreams, freedom to explore, freedom to adventure further, freedom to get where you need to when it matters without having to worry about fuel, freedom to be there for your family and loved ones when needed. Each and every extra large fuel tank as well as all of the parts included are made right here in the greatest country on the face of the Earth, the United States of America. We are proud to be the only cross-linked polymer fuel tanks on the market that are made here and are tough enough to be backed by an Lifetime Warranty. Innovation, quality, durability, refinement—are all synonymous with the name TITAN Fuel Tanks. We stand squarely behind them with our industry-leading Lifetime Warranty. With our tanks, no carbon steel comes in contact with your fuel at any time. A feature that leads the way by ensuring against corrosion and fuel contamination.

Made in The USA
More Information
Year 2017, 2018, 2019, 2020, 2021, 2022
Make / Model Ford F350, Ford F450, Ford F550
TITAN Tank Capacity 40
Instructions Download Instructions
CA PROP 65 WARNING CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Truth About Fuel Capacity

The Truth About Fuel Capacity

Fuel capacities shown for each and every Titan Fuel Tank are not a claim: it is fact, we show the usable capacity for every tank! In fact, the tanks are larger than their usable capacity. Usable fuel capacity is the portion of the tank that can safely hold fuel and allows the fuel to be picked up by the sending unit. For example, our 7020217 tank for the 2017+ Ford Crew Cab, Short Bed trucks is marketed as a 55 gallon tank. Could it hold more? Yes! Another 5 gallons of capacity exists in the tank, but that capacity is not usable. This 5 gallon area above the filler neck is for expansion/vapor headspace to dissipate the pressure changes in the tank due to temperature and elevation changes. We choose to not mislead our customers and market only the usable capacity, 55 gallons.

We chose to only market usable capacity to set honest and reasonable expectations for our customers.

Distance Till Empty

Distance Till Empty and Similar Information
For Mid-Ship Replacement Tanks

Many trucks now come pre-programed with the capacity of the Original Equipment Manufacturers’ (OEM) fuel tank. Replacing the OEM tank with any extra-large capacity, direct replacement tank will result in the distance to empty information being incorrect. This information may be corrected on many trucks.
-2017+ Fords: Customers may use ForScan, a program designed for Ford trucks that allows the computer to be adjusted for the capacity of a TITAN Fuel Tank.
-2011-2016 Fords: Ford dealers can adjust the customer’s capacity using their Ford Motor Company software. These trucks are also compatible with ForScan.
-2019+ Dodge RAMs: Customers may use Alfa OBD, a program designed for RAM trucks that allows the computer to be adjusted for the capacity of a TITAN Fuel Tank.

Such solutions are entirely independent of, and not guaranteed by TITAN Fuel Tanks™.

CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov