Transfer Tank Frequently Asked Questions
Choosing and installing the right truck transfer tank starts with clear answers. Use this guide to compare WEATHER GUARD steel tank shapes and capacities, understand approved uses, and plan a secure installation. Always follow the instructions supplied with your model and confirm applicable federal, state and local requirements before transporting liquid.
What is a transfer tank used for?
A transfer tank carries liquid in a pickup truck bed, service body, or on a flat bed so it can be dispensed into equipment at the jobsite or in the field. WEATHER GUARD Transfer Tanks are designed for diesel and non-flammable liquids. They should be used only as directed in the instructions supplied with the specific model.
What liquids can I carry in a WEATHER GUARD Transfer Tank?
The new WEATHER GUARD Transfer Tanks are designed for combustible liquids such as diesel fuel. The tank cannot be used for flammable liquids such as gasoline, aviation fuel, or propane. Confirm liquid compatibility and all regulatory requirements before filling the tank.
Can I use the tank for gasoline?
No, the WEATHER GUARD Transfer Tanks are not certified for flammable liquids.
Do WEATHER GUARD Transfer Tanks meet DOT requirements?
WEATHER GUARD Transfer Tanks are designed to meet DOT requirements for hauling diesel and non-flammable liquids. Follow the model instructions and check federal, state and local rules that apply to your use.
Can I connect a transfer tank to my truck's factory fuel system?
No, the WEATHER GUARD Transfer Tanks cannot be used as an auxiliary tank and should not be connected to your vehicle's factory fuel system.
Which size and shape transfer tank should I choose?
The right transfer tank depends on your vehicle, equipment, and how you use your truck. Start by considering how much fuel or liquid you need to carry and the capacity of the equipment you'll be refilling.
Tank shape is also important:
- L-shaped tanks maximize fuel capacity and lockable storage in the truck bed space when paired with a crossbox or saddle toolbox.
- Column tanks provide fuel capacity with a smaller footprint, making them ideal when bed space is limited.
- Rectangular tanks offer maximum capacity in a traditional design.
Before selecting a tank, review the overall dimensions, installed weight, and available truck bed space to ensure proper fitment and that your vehicle's payload capacity is not exceeded. WEATHER GUARD Transfer Tanks are available in multiple sizes and configurations to help you balance fuel capacity, storage needs, and vehicle fitment.
What is the difference between L-shaped, column and rectangular tanks?
- L-shaped tanks maximize fuel capacity and lockable storage in the truck bed space when paired with a crossbox or saddle toolbox.
- Column tanks provide fuel capacity with a smaller footprint, making them ideal when bed space is limited.
- Rectangular tanks offer maximum capacity in a traditional design.
How is the tank mounted?
The transfer tanks use integrated mounting tabs to simplify installation and reduce separate stress points. Rubber isolation bushings help absorb road vibration. Install the tank only with the specified hardware and procedure, verify that no wiring, brake lines or fuel lines are below drilling locations, and tighten fasteners to the model's instructions.
Why does the tank have interior baffles?
Interior baffles reduce liquid movement, or slosh, while the truck is moving. That helps steady the load and adds internal strength to the tank.
What does the lockable vented cap do?
The lockable vented cap helps protect the contents of your transfer tank by restricting unauthorized access while allowing the tank to breathe properly. Venting helps manage pressure changes caused by temperature fluctuations, filling, and liquid dispensing, supporting safe tank operation.
For safety, always use the approved cap provided with the tank. Never block the vent, replace the cap with a non-approved alternative, or attempt to pressurize the tank.
Can I add a fuel transfer pump?
The tank uses a reinforced 2-inch NPT threaded neck designed to mount most off-the-shelf fuel pumps. Do not use fuel pumps greater than 25 GPM flow rate. Follow the transfer tank instructions and the instructions provided by the pump manufacturer.
What finishes are available?
The steel fuel transfer tanks are offered in White or Matte Black ARMOR TUF® Powder Coat designed to protect the tank in demanding work environments.
What warranty covers the tank?
The new WEATHER GUARD Transfer Tanks are backed by a Limited Lifetime Warranty.
How should I inspect and maintain a transfer tank?
Before use, check the tank, mounting points, bushings, cap, fittings, pump and hoses for looseness, damage, corrosion or leaks. Keep the vent clear, avoid modifications such as welding or drilling into the tank, and remove the tank from service if damage or leakage is found.
Choose your WEATHER GUARD Transfer Tank
The redesigned lineup combines heavy-duty steel, rounded corners, integrated mounting tabs, interior baffles, isolation mounting, a lockable vented cap and a 2-inch threaded neck delivering lasting strength and easier installation. Browse all transfer tanks, compare model specifications and choose the configuration that fits your truck and work.