Skip to product information
1 of 3

Radium Extension Kit for FCST-X

Radium Extension Kit for FCST-X

SKU: SKU:  20-1989

Regular price $349.99
Regular price Sale price $349.99
4 In Stock
Taxes included.
Icon 1 Icon 2 Icon 3 Icon 4 Icon 5 Icon 6 Icon 7
View full details

More info

Radium Extension Kit for FCST-X

Application: Radium FCST-X 20-1990, 20-1991 and 20-1992 series
Part Type: Surge tank extension kit for FCST-X
Part Number: 20-1989


The Radium Extension Kit adds 1.2 L of volume to the surge tank of the FCST-X and lowers the one-way fill valves for better fuel starvation protection at low fuel levels. An anodised aluminium canister mounts between the top plate and the existing surge tank canister, and a longer stainless steel pump bracket replaces the original.

The kit makes the module 94mm (3.7in) taller, so it is intended for deeper fuel cells such as the Radium R14A and R22A.


Key Features

  • Added Volume: 1.2 L extra surge tank capacity
  • Lower Fill Valves: Improved starvation protection at low fuel levels
  • Bolt-in Canister: Anodised aluminium canister fits between the top plate and existing canister
  • Longer Pump Bracket: Stainless steel bracket replaces the original

What's Included

  • Anodised aluminium canister
  • Stainless steel pump bracket
  • Large ID fuel pump tubing
  • Small ID fuel pump tubing
  • Submersible fuel hose
  • Stainless steel hardware

Optional Parts


Important Notes

  • Requires a fuel cell with a minimum depth of 274mm (10.8in) – compatible with Radium R14A (20-0614) and R22A (20-0622) cells
  • Not compatible with Radium 6, 10 or 10.5 gal RA-Series cells, or any Radium FCST not listed in the fitment
  • Radium does not pre-assemble the kit on FCST-X units – it is installed by the end user
  • 20-1991-00 (Bosch BR540 / DeatschWerks DW400) requires 14-0691 fittings to replace the pump outlet adapters – one per surge pump
  • FCST-X sold separately

Vehicle Fitment

  • Radium FCST-X 20-1990-00, 20-1990-01, 20-1990-02, 20-1990-03
  • Radium FCST-X 20-1991-00 (requires 14-0691 fittings)
  • Radium FCST-X 20-1992-00, 20-1992-01, 20-1992-02, 20-1992-03

Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.

Specs & Features

  • Part Number: 20-1989
  • Height Increase: 94mm (3.7in)
  • Added Volume: 1.2 L
  • Minimum Cell Depth: 274mm (10.8in)
  • Canister: Anodised aluminium
  • Pump Bracket: Stainless steel