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This spare drop‑in pump module is made for Radium FCST‑X fuel cell surge tanks and accepts Brushless Ti Automotive E5LM pumps (pumps sold separately). The extra module enables quick pump changeouts during competition, using the tank’s lift‑out module architecture to simplify servicing and replacement without removing the entire surge tank assembly.
Radium Engineering FCST-X Spare Drop-In Pump Module (Brushless Ti Automotive E5LM)
