Transfer Tanks

Fuel Transfer Tanks

Shop fuel transfer tanks and diesel transfer tanks for pickup trucks and service vehicles from Upfit Supply. A transfer tank mounts in the truck bed so you can carry fuel to equipment, generators and other vehicles on the job site. We carry Weather Guard, UWS, RDS, ATI, Dee Zee, Better Built, Transfer Flow and TrailFX in aluminum and steel, from 35 to 200 gallons.

Types of Transfer Tanks

  • Rectangle transfer tanks: The most common style. They sit flat against the front of the bed and come in the widest range of capacities.
  • L-shape transfer tanks: A lower section leaves room to mount a crossover tool box above the tank, so fuel and tools share the space behind the cab.
  • Vertical, wedge and hammerhead tanks: Space-saving shapes for short beds or trucks that need floor space for other equipment.
  • Split tanks: Two compartments in one tank, so you can carry two different fuels.

Want fuel and tool storage in one unit? See transfer tank and tool box combos. Need more driving range for your own truck instead? Shop auxiliary fuel tanks, which plumb into your truck's fuel system.

Shop by Fuel Type

Most transfer tanks are rated for diesel. If you need to haul gas, shop our gasoline transfer tanks, which are rated for gasoline by ATI, RDS and Transfer Flow.

Transfer Tank Brands

Aluminum vs. Steel Transfer Tanks

  • Aluminum: Lighter and naturally corrosion-resistant, so it won't rust if the finish is scratched. A good fit if you move the tank between trucks or work in wet climates.
  • Steel: More impact-resistant and usually lower cost. A good fit for high-abuse fleet work where weight matters less.

Shop Transfer Tanks by Truck

Need a pump? Add one from our fuel transfer pumps.

Fuel Transfer Tank FAQs

What size transfer tank do I need?

For most full-size pickups, a 50 to 75 gallon rectangle tank fits a 6.5 ft or 8 ft bed and leaves plenty of room. L-shape tanks in the 90 to 110 gallon range work best on 8 ft beds and service trucks. For a 5.5 ft bed, look at compact 35 to 50 gallon rectangle or vertical tanks, and always check the tank dimensions against your bed.

Can I put gasoline in a transfer tank?

Only in a tank its manufacturer rates for gasoline, like our gasoline transfer tanks. Most transfer tanks, including Weather Guard, UWS, Dee Zee, Better Built and TrailFX, are rated for diesel. ATI, Transfer Flow and many RDS tanks are rated for gasoline, and gasoline tanks are limited to 119 gallons under the DOT special permits they're built to.

Are transfer tanks legal to use on public roads?

Rules vary by fuel type and by state. Diesel and gasoline are both regulated as hazardous materials when carried in bulk, so confirm the tank's fuel rating and certifications and check your state's requirements before you buy one for road use.

Do transfer tanks come with a pump?

Most transfer tanks are sold without a pump. Transfer Flow refueling tanks include a 12V pump. For other tanks, check the product listing and add a pump rated for your fuel.

What is the difference between aluminum and steel transfer tanks?

Aluminum tanks are lighter and naturally corrosion-resistant, which suits contractors who move the tank between trucks or work in wet climates. Steel tanks are more impact-resistant and usually cost less.