How to Install a Rectangle Aluminum Auxiliary Fuel Tank


Installing a rectangle aluminum auxiliary fuel tank can be a practical solution for those who need extra fuel capacity for their vehicles. Whether you’re a long-distance traveler, off-road enthusiast, or simply want to extend the range of your vehicle, adding an auxiliary transfer fuel tank can provide peace of mind and convenience. In this guide, we’ll walk you through the steps to properly install a rectangle aluminum auxiliary fuel tank.

Preparation and Safety MeasuresĀ 

Before you begin the installation process, it’s crucial to take the necessary precautions to ensure your safety and the successful completion of the task. Here are some key steps to follow:

  • Read the Instructions: Start by carefully reading the manufacturer’s instructions that come with your rectangle aluminum auxiliary fuel tank. Familiarize yourself with the components and installation process outlined in the manual.
  • Choose a Suitable Location: Select a suitable location for mounting the auxiliary fuel tank. It should be securely positioned and easily accessible for filling and maintenance purposes. Ensure that the tank will not interfere with other components of your vehicle or impede its functionality.
  • Gather the Necessary Tools: Collect all the tools and equipment you’ll need for the installation, including wrenches, screwdrivers, mounting brackets, and any additional hardware specified in the instructions.
  • Safety First: Prioritize safety throughout the installation process. Wear appropriate protective gear, such as gloves and safety glasses, to prevent injury. Work in a well-ventilated area away from open flames or sources of ignition.

Installation StepsĀ 

Now that you’re prepared, let’s dive into the installation process of your rectangle aluminum auxiliary fuel tank:

  • Drain the Existing Fuel Tank: Begin by draining any remaining fuel from your vehicle’s existing fuel tank. Use a siphon pump or other suitable method to transfer the fuel to a safe container.
  • Locate Mounting Points: Identify the mounting points on your vehicle where you’ll attach the auxiliary fuel tank. These may include the bed of a pickup truck, the undercarriage, or other suitable locations depending on the design of your vehicle and the size of the tank.
  • Install Mounting Brackets: Attach the mounting brackets to the chosen location using the appropriate hardware. Ensure that the brackets are securely fastened and capable of supporting the weight of the auxiliary fuel tank.
  • Position the Tank: Carefully position the rectangle aluminum auxiliary fuel tank onto the mounting brackets. Make sure it is level and aligned properly with the vehicle.
  • Connect Fuel Lines: Connect the fuel lines from the auxiliary tank to the existing fuel system of your vehicle. Follow the manufacturer’s instructions for proper connection methods and ensure that all fittings are tight and secure.
  • Test for Leaks: Before proceeding further, conduct a thorough inspection of the fuel system to check for any leaks or potential issues. Pressurize the system and monitor for signs of leakage, addressing any issues promptly.


Installing a rectangle aluminum auxiliary fuel tank can provide added convenience and flexibility for vehicle owners who require additional fuel capacity. By following the steps outlined in this guide and prioritizing safety, you can successfully complete the installation process and enjoy the benefits of extended range and peace of mind on your travels. Remember to refer to the manufacturer’s instructions and seek professional assistance if needed to ensure a smooth and trouble-free installation.

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