Radium Engineering FCST-X Spare Drop-In Pump Module (Walbro GSS342 or AEM 50-1200 Or DW440)

For a properly planned performance build, the Radium Engineering FCST-X Spare Drop-In Pump Module (Walbro GSS342 or AEM 50-1200 Or DW440) keeps a dedicated reservoir of fuel around the high-pressure pump or pumps to reduce fuel starvation during hard cornering, acceleration, and other high-load driving. By integrating surge-tank functionality with a fuel-cell system, the setup is well suited to track, competition, and high-performance builds that cannot tolerate inconsistent fuel supply.

Key sizing for this version includes compatibility with Walbro GSS342, AEM 50-1200, and DW440, so it should be matched to the rest of the system before installation. Pump model and quantity are part-number-specific. Match the surge-tank configuration to the exact pump family being used.