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This spare drop‑in pump module fits Radium FCST‑X fuel cell surge tanks and is sized for Bosch BR540 or DW400 style pumps (pumps sold separately). Installing a spare module enables quick pump changeouts during competitive events and leverages the tank’s lift‑out module design for fast servicing without extensive disassembly.
Radium Engineering FCST-X Spare Drop-In Pump Module (Bosch BR540 or DW400)
