Skip to content
Questions? Give us a call or text: 800-964-5341
Questions? Give us a call or text: 800-964-5341

Transfer Flow Auxiliary Tanks

Browse our selection of Transfer Flow auxiliary fuel tanks for sale.
  • Original price $1,889.76 - Original price $2,177.82
    Original price
    $1,889.76 - $2,177.82
    $1,889.76 - $2,177.82
    Current price $1,889.76

    Transfer Flow In-Bed Auxiliary Fuel Tank System

    Transfer Flow

    The Transfer Flow In-Bed auxiliary fuel tank is designed to be compatible with almost any diesel truck, including half-ton pickups, trucks with uti...

    View full details
    Original price $1,889.76 - Original price $2,177.82
    Original price
    $1,889.76 - $2,177.82
    $1,889.76 - $2,177.82
    Current price $1,889.76
  • Original price $1,745.26 - Original price $1,870.62
    Original price
    $1,745.26 - $1,870.62
    $1,745.26 - $1,870.62
    Current price $1,745.26

    Transfer Flow Low Profile Under Tonneau Auxiliary Fuel Tank

    Transfer Flow

    The low profile Transfer Flow auxiliary fuel tank is designed to fit under tonneau covers.  Choose from 40 or 50 gallon sizes. Either option offers...

    View full details
    Original price $1,745.26 - Original price $1,870.62
    Original price
    $1,745.26 - $1,870.62
    $1,745.26 - $1,870.62
    Current price $1,745.26

Transfer Flow Auxiliary Tank Dimensions

Transfer Flow Rectangular Auxiliary Fuel Tank

Transfer Flow Rectangular Auxiliary Fuel Tank

  • Sizes range from 40 gallons to 100 gallons.
  • 40 & 50 gallon size fits under standard tonneau cover.
  • Auxiliary Tanks Require a diesel powered engine.
  • See detailed dimensions by size below:

The 40 gallon and 50 gallon auxiliary fuel tank is designed to fit under a standard tonneau cover.  The 40 gallon size includes a diagonal fill neck that doesn't add any extra height to the tank. The 50 gallon size includes a fill neck mounted to the top of the tank.

Dimensions (Click SKU number to see tank)

  • 0800116637: 40 Gallon - 48 inches long x 19 inches wide x 19.38 inches high
  • 0800116625*: 50 Gallon - 60.75 inches long x 18.5 inches wide x 18.25 inches high

*The fill neck adds 2.5 inches of height to the top of the tank. The 2.5 inches is included in the 18.25 inch total height.

The 75 and 100 gallon auxiliary fuel tanks offer larger fuel capacity. In return for larger fuel capacity, these tanks require slightly larger height and increased width than compared with the smaller sizes.

Dimensions (Click SKU number to see tank)

  • 0800116755*: 75 Gallon - 60.75 inches long x 20.5 inches wide x 22.75 inches high.
  • 0800116758*: 100 Gallon - 60.75 inches long x 26.75 inches wide x 22.75 inches high.

For more information, see our full selection of Transfer Flow tanks.