This extension kit permits an additional 1.2 liters of volume for the fuel surge tank found in many FCST-X (10yr special edition). This also lowers the 1-way fill valves for increased fuel starvation protection at low fuel levels. The anodized aluminum canister secures between the top plate and the existing surge tank canister. Because it is 3.7in taller, it is not compatible with shallow fuel cells. A longer stainless steel pump bracket replaces the existing pump bracket.

This kit is compatible with the FCST-X models and RA Series fuel cells listed below. It can also be used on other brands of fuel cells that will accept an FCST-X as long as the minimum depth is 10.8 inches.

FCST-X MODELS

• RADIUM 20-1990-00 FCST-X
• RADIUM 20-1990-01 FCST-X
• RADIUM 20-1990-02 FCST-X
• RADIUM 20-1990-03 FCST-X
• RADIUM 20-1991-00 FCST-X⁽¹⁾
• RADIUM 20-1992-00 FCST-X
• RADIUM 20-1992-01 FCST-X
• RADIUM 20-1992-02 FCST-X
• RADIUM 20-1992-03 FCST-X

⁽¹⁾Requires additional fitting: Radium part number 14-0691 to replace the pump outlet adapters normally used when installing the Bosch BR540 or Deatschwerks DW400. The quantity needed is directly related to the amount of the fuel pumps installed into the surge tank side of the FCST-X. These adapter fittings can be ordered from the checkboxes on the right, or found HERE.

Not compatible with any Radium FCST not listed

FUEL CELLS

• Radium 20-0614 R14A Fuel Cell, 14 Gallon
• Radium 20-0622 R22A Fuel Cell, 22 Gallon
• FCST-X Compatible fuel cells with 10.8" minimum depth

Not compatible with 6 gallon, 10 gallon, or 10.5 gallon Radium RA-Series fuel cells.

Radium Engineering does not assemble these when purchasing an FCST-X. This kit must be installed by the end user.

• Anodized aluminum canister
• Stainless steel pump bracket
• Large ID fuel pump tubing
• Small ID fuel pump tubing
• Submersible fuel hose
• Stainless steel hardware