Radium Engineering Fuel Pump Hanger – Subaru WRX 08–21 / STI 08–21

These Radium Engineering in-tank fuel pump hangers are a direct replacement for the OEM fuel unit and support one or two high-flow aftermarket fuel pumps. Designed for performance Subaru applications, this system is ethanol-safe (E85 compatible), includes advanced features to prevent fuel starvation, and requires no permanent modifications for installation.

Overview
The CNC-machined anodised assembly replaces the OEM fuel pump module, using the factory gasket and mounting flange. Fuel is collected in a dedicated collector box with twin 355LPH one-way fill valves and a redesigned venturi jet pump for optimal scavenging from both sides of the tank. The system merges dual pump flow internally to a single outlet port and retains OEM level and temperature sensor compatibility.

Key Features

• Dual pump compatibility

• Collector box with two 1-way 355LPH fill valves

• Integrated venturi jet pump with pressure relief

• 8AN ORB feed, 6AN ORB return and crossover ports

• Pre-installed SAE quick connect fittings for OEM lines

• Stainless anti-rotation electrical terminals

• Compatible with gasoline, methanol, and ethanol (E85)

• Supports high current fuel pumps

• Includes mounting for OEM level and temperature sensors

Vehicle Compatibility

• 08–14 Subaru Impreza (All)

• 08–14 Subaru Forester (All)

• 05–09 Subaru Legacy (All)

• 05–09 Subaru Outback (All)

• 15–21 Subaru WRX

• 15–21 Subaru STI

• 14–18 Subaru Forester XT

Note: Forester XT and WRX require Radium P/N: 20-0850 Fuel Level Sender Adapter.
An external fuel pressure regulator is required.
This system eliminates the OEM post-pump fuel filter—Radium plumbing kits below include a replacement.