Aluminum Tank Industries Diesel Auxiliary Tanks 30 to 66 Gallons Includes Gravity Feed Kit

30, 41, 42, 43, 46, 51, 58, 62 and 66 Gallon Choices

MSRP: $700.00 - $909.00
$627.95 - $930.95 (Inc. Tax)
MSRP: $700.00 - $909.00
$627.95 - $930.95 (Ex. Tax)

  • Includes Fuel Shotz Kit to easily attach to factory fuel system
  • No switches or wires to install
  • Automotive style filler cap
  • Fully baffled to reduce the movement of tank contents

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Rectangular Auxiliary Diesel Fuel Tanks by ATI Feature

  • Includes Fuel Shotz Kit to easily attach to factory fuel system
  • No switches or wires to install
  • Automotive style filler cap
  • Fully baffled to reduce the movement of tank contents
  • 2" npt reinforced bung for superior strength
  • Welded hold down brackets
  • The tank is pressure tested for leaks and inspected internally by video.
  • Tanks are clean and free of debris inside the tank
  • 1 year limited warranty

Go Further and Longer - adding a diesel auxiliary fuel tank can give you an additional 30 to 66 gallons on top of your factory installed tank's capacity, more than doubling your range in most cases. Not to be confused with "Transfer Tanks", these rectangular auxiliary tanks are not designed to be used with external pumps. The vehicle fitment list on this page is for the installation kit only. It does not ensure the fit of the tank. 

No Guesswork - ATI auxiliary tanks increase your driving range and fuel capacity by as much as 66 gallons by connecting directly into your factory fuel tank through the factory filler neck. These tanks are designed for use with the included Fuel Shotz diesel install kits. This will keep your factory tank completely full until the auxiliary tank is empty. You will know your auxiliary tank is empty when your factory fuel gauge moves off the full mark. Auxiliary fuel tanks can also be used to supply fuel to the engine of machinery and equipment such as generators. Our auxiliary fuel tanks meet all the necessary DOT requirements.

Hook Up - The FUEL SHOTZ auxiliary fuel tank installation kit that is included is used to connect the auxiliary fuel tank to the factory fuel tank via the factory fill tube. The kit contains everything you need to make the connection from the auxiliary tank with a 3/8" NPT bottom fitting to the factory fill tube. The auxiliary tank keeps the factory tank full. When the auxiliary tank is empty your factory fuel gauge will move off the full mark. These kits are supplied with detailed instructions and take less than an hour to install. There are no wires or switches to install, engineered for rollover protection and only requires attaching the kit supplied 3/8" npt pipe fitting on the bottom of the tank in place of the drain fitting.

You Have a Little Work To Do - ATI offers many different configurations, capacities, and shapes but measuring the area you intend to mount your tank is the only way to correctly choose the right tank for your truck. Use our guide "How to Measure Your Truck Bed for a Transfer or Auxiliary Tank" 

If you cannot find a fit for your truck or have any other questions please contact us for help.

What You Need To Know:


Toolbox Measurements in Inches

Part Number GAL    A        B         C        *Bottom Taper Dimension **Bottom Notched Dimension
AUX30R 30    9      48.5        19
AUX41R 41  19      48.5        11
AUX46R 46  16.5      57        12
AUX51R* 51  24      60          9                            55
AUX66R 66  17      55         18  
AUX65R* 62 13      60         21                            54
AUX42R 42 12     48.5        19
AUX58R** 58 13     58        21                         51
AUX43R** 43 16.5     58        12                        51

Since opening in 1963 Leonard Buildings and Truck Accessories' goal has always been to provide quality truck accessories at the lowest prices. Ford, Chevy, GMC, Dodge, Ram, Nissan, Honda, Jeep and Toyota Truck owners may disagree on which vehicle brand is better but they can all agree that Leonard Truck Accessories is the perfect place to buy your ATI Rectangular Diesel Auxiliary Tanks.

Real truck lovers, off-roaders or fans of anything auto, be a truck hero and buy the best quality, best reviewed, best priced Aluminum Tank Industries - ATI products through Leonard Truck Accessories or visit any one of our stores in North Carolina , South Carolina , Tennessee , Virginia and West Virginia . Leonard Store Locator .


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