Truck Tanks

Truck Tanks

Shop truck fuel tanks for pickup trucks and service vehicles from Upfit Supply, including transfer tanks, auxiliary fuel tanks and tank/toolbox combo units from Weather Guard, RDS, Dee Zee, ATI, UWS, Better Built, Transfer Flow and TrailFX. Aluminum and steel options.

Shop by Type

  • Transfer Tanks: Fuel tanks that sit in the truck bed and dispense fuel out to equipment, generators and other vehicles through a pump and hose. The standard setup for contractors and fleets that need on-site fueling. Aluminum and steel, 35 to 200 gallons. Hauling gas? Shop gasoline transfer tanks.
  • Auxiliary Fuel Tanks: Plumbed into the truck's fuel system to extend driving range. Fuel moves from the auxiliary tank to the main tank, with no separate dispensing pump. Available from RDS, ATI, Dee Zee and Transfer Flow.
  • Tank / Toolbox Combos: A transfer tank and a lockable toolbox built as a single unit. Available from RDS, ATI, Dee Zee, UWS and Better Built in aluminum and steel. The most bed-efficient setup when you need fuel and tool storage.

Transfer Tank vs. Auxiliary Tank: Which Do You Need?

These two products are often confused, and buying the wrong one is an expensive mistake. The difference comes down to where the fuel goes.

  • If you need to refuel equipment in the field (skid steers, generators, tractors, ATVs or other trucks), you need a transfer tank. It dispenses fuel out through a pump and hose.
  • If you need more range for your own truck, you need an auxiliary fuel tank. It's plumbed into your truck's fuel system and extends how far you can drive between fill-ups.
  • If you need fuel and tool storage without giving up bed space for a separate toolbox, a tank/toolbox combo handles both in one footprint.

Brands

Frequently Asked Questions

What is the difference between a transfer tank and an auxiliary fuel tank?

A transfer tank sits in the truck bed and dispenses fuel out to equipment or other vehicles through a pump and hose, like a mobile fueling station. An auxiliary fuel tank is plumbed into the truck's fuel system to extend your driving range. Most transfer tanks are not designed to connect to your truck's fuel system, so choose an auxiliary tank built for that job.

Which brands make auxiliary fuel tanks?

RDS Manufacturing, ATI (Aluminum Tank Industries), Dee Zee and Transfer Flow offer auxiliary tanks. Weather Guard, UWS and Better Built make transfer tanks and combos only.

What is a tank/toolbox combo?

A tank/toolbox combo is a single unit that combines a transfer tank and a lockable toolbox. The tank section holds and dispenses fuel, and the toolbox section stores tools. Combos suit contractors who need both without two separate units taking up bed space. Available from RDS, ATI, Dee Zee, UWS and Better Built.

Can truck tanks carry gasoline?

Only tanks rated for gasoline, like our gasoline transfer tanks. Gasoline is a Class 3 flammable liquid, so truck bed refueling tanks carry it under U.S. DOT special permits, such as those held by ATI and Transfer Flow, which cap tanks at 119 gallons. Weather Guard, UWS, Better Built and TrailFX tanks are rated for diesel, not gasoline.

Do I need a permit to carry a fuel transfer tank?

Rules vary by fuel type and by state. Check your state's requirements and confirm the tank's fuel rating and certifications before you buy one for road use.