Fuel Cell Surge Tank FCST-X 1 Surge Pump 1 Lift Pump Walbro GSS342 Radium Engineering - USA-RAD-20-1990-01 - FCST-X FEATURES LEGACY FCST FEATURES The features listed below carry over from previous fuel cell surge tanks. Merged single 10AN ORB female threaded outlet. All pumps use check valves that prevent back-flow. One-way fill valves (355LPH each) allows fuel in, but not out, keeping the surge tank full. Multiple fuel pump options including gerotor, reaction turbine, and brushless DC motor pumps. Hermetically sealed high-current stainless steel electrical studs capable of handling all pumps. Simplified servicing eliminates sealing washers and fuel cell retaining brackets. Full CNC aluminum construction with anodized surfacing for superior corrosion resistance. Fuel compatibility: leaded and unleaded gasoline, methanol, ethanol, E85, etc. Optional fuel surge tank level switch and diagnostic LED failsafe port. Rollover vent valve protection  NEW FEATURES In addition to all previous FCST features, the new FCST-X rendition is packed with innovations. Fast lift and surge pump access (9 bolts total) Integrated lift handle for fuel pump servicing Lightweight surge tank increased from 2.2L to 2.6L Compatible with up to 4 brushless fuel pumps Up to 4 Bosch BR540 fuel pumps (DW400)  Up to 3 Ti Automotive E5LM brushless pumps Up to 4 brushless Bosch pumps (DW440) Compatible with 16AN inlet mechanical pumps Easily swappable pump modules (sold separately) Compatible with shrouded level sensors Designed with less potential leak points Improved fluid control for quick filling Optimized internal fluid management Enhanced roll over protection Anti-rotation electrical terminals COMPATIBLE WITH MY FUEL CELL? To install a Radium Engineering FCST-X into a fuel cell, the following criteria must be met: The fuel cell must have the industry standard 6"x 10", 24-bolt flange opening. The opening must be on the top face of the fuel cell (i.e. not a side face). The cell depth must be at least 7.7" (196mm) measured from the outer top face to the internal bottom face. WHATS IN THE BOX? The following comes standard with every FCST-X variation Anodized aluminum 6x 10 plate Anodized aluminum surge tank pump hat Anodized aluminum lift pump hat Anodized aluminum service handle Anodized aluminum level sensor plate Anodized aluminum surge pump bracket Stainless lift pump mounts (shallow and deep) Lift pump and surge pump fuel filters Anodized aluminum 8AN roll over vent valve FKM refueling rollover protection seal FKM 6x 10 24-hole sealing gasket 8AN ORB to 6AN male return fitting 10AN ORB to 8AN male pump out fitting 2AN ORB fuel level switch plug FKM 1-way fill valves (x 3) Anodized aluminum acorn nuts Electrical wire ring terminals 20-1990-01 This FCST-X is preassembled with 1 Walbro GSS342 lift pump and 1 Walbro GSS342 surge tank pump. Instruction PDF