The Radium Engineering FCST-X is a lightweight 2.6L fuel cell surge tank that feeds high-pressure pumps without starvation during hard cornering, braking, and acceleration. This complete kit includes two Walbro GSS342 surge pumps plus one GSS342 lift pump to keep the tank full. Fast 9-bolt pump access, integrated lift handle, swappable modules. Compatible with E85 and other fuels. Universal fitment; pumps included as listed.
| Product | FCST-X Fuel Cell Surge Tank |
| Capacity | 2.6L |
| Pumps Included | 2 surge + 1 lift (Walbro GSS342) |
| Fuel Compatibility | Gasoline / E85 |
| Fitment | Universal |
| Part Number | 20-1990-02 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
