Radium Fuel Pump Hanger - Mitsubishi Evo 7-9

Radium Engineering Fuel Pump Hanger — Mitsubishi Evo 7-9

The Radium Engineering Fuel Pump Hanger is a precision-engineered drop-in replacement for the OEM hold-down flange in the Mitsubishi Lancer Evolution 7, 8, and 9 fuel tank. Designed for high-power builds that demand reliable, high-volume fuel delivery, this hanger supports single or dual aftermarket pump configurations without cutting, welding, or modifying the factory tank.

Built from anodized billet aluminum and stainless steel hardware, every component is engineered to withstand continuous submersion in standard and exotic fuels — including E85, methanol blends, and race-spec formulations.

Why the OEM Hanger Fails at High Power

The factory Evo 8-9 fuel pump hanger is a known restriction point in high-output builds. Its venturi jet pump and return port become critically restrictive when paired with high-flow aftermarket pumps, creating excessive backpressure in the regulator return line and causing fuel rail pressure to spike unpredictably. The Radium hanger solves this with an upgraded venturi jet pump featuring an integrated pressure-relief valve — eliminating backpressure and keeping the OEM baffle full for starvation-free operation under hard cornering, acceleration, and braking.

Plumbing & Fitment

The hanger features a single 8AN male pump feed port and a 6AN male return port for clean, direct aftermarket AN plumbing. OEM fuel line adapter fittings are also included for builds retaining factory lines. All returning fuel from the pressure regulator and crossover hose exits through the jet pump, keeping the OEM baffle full for consistent fuel pickup.

Electrical System

Custom-designed stainless electrical studs handle the high current demands of modern high-flow pumps — a critical upgrade over compact bulkhead connectors that are prone to resistance and heat buildup. All connections are properly sealed and chemically resistant. In-tank wiring is insulated with PTFE for long-term durability. Nonconductive acorn nuts are included to prevent accidental short circuits. Electrical hardware is provided for both fuel pump(s) and the OEM level sender.

Note: Single pump applications can reuse OEM fuel pump controller wiring, however upgrading to a larger gauge wiring kit is strongly recommended to handle the additional current draw of high-flow pumps.

Pump Compatibility

Select your variant based on the pump(s) you are running:

• 20-1342 — Walbro Ti Automotive F90000267 / F90000274 / F90000285 / F90000295 — High-flow 450lph class pumps for serious power builds
• 20-1340 — Walbro GSS342 / AEM 50-1200 / AEM 50-1220 — Proven 255lph class pumps for street and moderate track builds

If supplying your own pumps, select the appropriate variant for your pump model. The kit includes enough components for 1 or 2 fuel pumps — unused parts simply won't be installed. A pliable fuel pump filter sock must be used for proper fitment. When pumps are included, 65-micron sock filters are pre-installed. A low-micron aftermarket inline fuel filter should always be installed downstream to protect injectors.

What's Included

• Anodized Aluminum Mounting Plate
• Anodized Aluminum Venturi Jet Pump with Multiple Orifices & Integrated Pressure-Relief Valve
• Anodized Aluminum 8AN Male Pump Outlet Fitting
• Anodized Aluminum 6AN Male FPR Return Fitting
• Anodized Aluminum Dual Pump & Fuel Sender Bracket
• Anodized Aluminum Pump Outlet Fittings
• Stainless Electrical Studs & Hardware for Fuel Pump(s) and OEM Sender
• Fluorosilicone Duckbill Return Valve
• Submersible Rubber Fuel Hose
• Stainless Steel Hardware & Clamps
• OEM Fuel Line Adapter Fittings

Available Part Numbers

• 20-1342 — Radium Fuel Pump Hanger, Evo 7-9, Walbro F90000267 / F90000274 / F90000285 / F90000295
• 20-1340 — Radium Fuel Pump Hanger, Evo 7-9, Walbro GSS342 / AEM 50-1200 / AEM 50-1220

Optional Add-On (Sold Separately)

20-0376-0X — Fuel Hanger Plumbing Kit, Evo 8-9
Includes everything required to connect directly to an aftermarket -8AN male fuel rail and -6AN male FPR for both single and dual pump configurations. Features a pre-made PTFE -8AN feed line from the hanger to the engine bay, and re-uses the factory feed line as the regulator return line. Includes the necessary post-pump inline fuel filter.