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Part #: TFT4020299

Titan 4020299 Spare Tire Auxiliary Fuel System

1999-2007 Ford 7.3L/6.0L Powerstroke
Part #: TFT4020299
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The Titan 4020299 Spare Tire Auxiliary Fuel System (STAFS) puts an additional 30 gallons of fuel at your fingertips. In most cases, this can even double the fuel capacity of your truck! This innovative system is designed to repurpose the space commonly used to stow a vehicles spare tire. Its underbody location means that it has no impact on the truck bed's hauling space. In many cases where aftermarket custom wheels and tires are installed on a vehicle, they are not the same size as standard which means the original equipment space cannot be used anyway.

The STAFS military-grade cross-linked polyethylene tank body is light at only 30-pounds making it easy for one person to install. This kit includes all mounting hardware, filler kit and electronic fuel transfer monitor and control unit which is operated from the comfort of the cab. The electronic system gives the vehicle operator total flexibility in managing how the extra fuel capacity is used. The fuel can be held in reserve or transferred on-the-go as the need arises. The illuminated user interface indicates the tank's fuel level and features a single-touch button that starts the fuel transfer sequence. With one touch, fuel transfers from the STAFS to tank to the vehicles primary fuel tank and continues to flow until it is automatically stopped by the controller or the button is touched again.

The Titan system comes with a universal filler kit featuring an attractive brushed aluminum door that can be installed on the vehicle's exterior sidewall or on an inside wall of the truck bed. All of the mounting brackets, hoses, valves and pump are included with each system. Lifetime warranty on tank body. 


  • 30-Gallon Capacity
  • Repurposes Spare Tire Space
  • Transfers Fuel From STAFS To Factory Tank


  • MFG. Number4020299
  • Manufacturer NameTitan Fuel Tanks
  • Shipping Weight68.00 lb.
  • Shipping Length32 in.
  • Shipping Width19 in.
  • Shipping Height35 in.


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Most Popular Questions

Is there a plate you can purchase to protect this tank in off road situations?
View Staff Answer 

Titan does not offer a shield for the Titan 4020299 Spare Tire Auxiliary Fuel System, but we can assure you that this is one tough tank and it really doesn’t need one.