Radium Engineering V2 Fuel Pump Hanger for use w/ Walbro 450LPH (F90000267/274/285) Pumps 2008-2014 WRX / 2008-2021 STI / 2005-2009 Legacy / 2005-2009 Outback / 2008-2014 Forester

Pump Compatibility

This fuel pump hanger is compatible with 1 or 2 of the following fuel pumps:

• Walbro F90000267
• Walbro F90000274
• Walbro F90000285
• Walbro F90000295⁽²⁾

  ⁽¹⁾These pumps do NOT feature a check valve. If this is required, purchase 20-1533.

Included:

• Anodized aluminum and laser engraved fuel hat
• Collector box with two 1-way fill valves
• Pressure relief valve venturi jet pump
• Stainless electrical terminals
• Stainless steel hardware
• SAE quick connect fittings
• Submersible fuel tubing

Notes:

• The OEM fuel tanks may be the same, but the OEM fuel units are completely different. To adapt the OEM fuel level sensor to the Radium fuel pump hanger, 20-0850 FUEL LEVEL SENDER ADAPTER, FA20 is required.
• The OEM fuel system is returnless. The fuel pressure regulator that is normally inside the OEM fuel unit is discarded. An aftermarket fuel pressure regulator is required.
• 2014-2018 Subaru Forester XT & 2015-2021 Subaru WRX require extra components

Preventing Starvation:

To help prevent starvation, the anodized aluminum collector box keeps fuel trapped around the pumps. Furthermore, there are two 1-way fill valves on the collector box that will allow fuel in but not out. Each fill valve flows 355LPH (710LPH total).

The included a venturi jet pump features an integrated PRV (pressure relief valve). This transfers fuel from the passive side of the OEM fuel tank to the active side where the pump(s) reside. This unique design creates suction without restricting the return line.

All returning fuel from the FPR return and the crossover hose enter the collector box through a one-way duckbill valve keeping it full. The duck bill valve prevents back flow and reduces fuel spray noise.

Plumbing:

• FUEL PUMP OUT: This port is thread tapped for 8AN ORB (3/4"-16). A SAE quick connect male adapter fitting is preinstalled for connecting to the OEM feed line.
• FPR RETURN: This port is thread tapped for 6AN ORB (9/16"-18). A SAE quick connect male adapter fitting is preinstalled for connecting to the OEM return line.
• CROSSOVER: This port is thread tapped for 6AN ORB (9/16"-18). A SAE quick connect male adapter fitting is preinstalled for connecting to the OEM crossover line.

An external fuel hanger plumbing kit is no longer required if the factory fuel lines are reused. Each fuel pump merges internally into a single port. External fuel line merging is no longer required. 

Note: because the post pump filter normally located inside the OEM fuel pump hanger, an external post pump fuel filter is still required.

Electrical:

Single pump applications can reuse the OEM fuel pump controller wiring. It is recommended to upgrade the OEM wiring to get the maximum potential out of these high current, high flow pumps. Fuel pump wiring kits can be purchased HERE. Select qty1 for single pump applications and qty2 for dual pump applications.

Unlike compact multi-pin electrical connectors, these custom designed anti-rotation stainless steel electrical studs easily handle the high current demand from aftermarket fuel pumps. These serviceable connections are hermetically sealed and impervious to all standard and exotic fuels. The low profile design keeps all wiring tucked nicely underneath the OEM access cover. Each pump has it's own dedicated +/- electrical connections. Anti-rotation electrical terminals are now featured as well. Nonconductive anodized acorn nuts are provided to prevent any accidental short circuits. All necessary electrical hardware is provided for external wiring connections.

The factory fuel temperature and level sensors are re-used. The collector box permits mounting for level as shown above. The internal pump bracket permits mounting for the temperature sensor. 

Installation Instructions