BMW E90 E91 E92 E93 N54 N55 Radium FHST-RA Fuel Hanger Surge Tank

Radium FHST-RA Fuel Hanger Surge Tank. Fitment: BMW E90 E91 E92 E93 N54 N55. Available part numbers: 20-1970, 20-1972.

Choose Your Version

• Fits Walbro GSS342 / AEM 50-1000 / AEM 50-1200 (20-1970)
• Fits Walbro F90000267 / 274 / 285 (20-1972)

Features

• Permits 1 or 2 surge pumps; pumps not included
• Integrated RA-series regulator with 1:1 adjustment and haptic detents
• Integrated 1-way fill valve and fuel starvation protection
• 8AN ORB feed port with preinstalled low profile 8AN male fitting to clear the OEM pump cover plate
• Four interchangeable 10-32 vacuum port fittings: 3/16in barb, 3AN male, push-to-connect for 1/4in tubing, and a vacuum plug for constant pressure
• Stainless electrical studs with nonconductive acorn nuts, ETFE insulated in-tank wiring
• Anodized aluminum construction, gasoline and ethanol compliant

Kit Includes

• Fuel hanger surge tank, partially assembled
• Hardware to install one or two pumps
• Filter socks
• DIY fuel pump wiring kit for 1 pump, with relay and fuse
• Electrical parts kit for external wiring
• NOT included: fuel pumps and post pump fuel filter

Applications

• BMW E90, E91, E92, and E93 3-series with the N54 or N55 engine

Important Notes

• NOT compatible with BMW 1-series (E81, E82, E86, E87)
• Fits the E90/91/92/93 M3 fuel tank, but the M3's brushless pump means the installer must devise a way to trigger the surge tank pumps; this is not covered in Radium's instructions. The 20-0475 feed kit does not fit the M3 at all due to the exhaust system.
• A low micron post pump filter is required separately since the FHST removes the OEM unit