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Radium Fuel Pump Hanger, Toyota Supra MK4

Radium Fuel Pump Hanger, Toyota Supra MK4


We keep in stock two version of this kit

The Twin 485 and triple 485 pre assembled kit including pumps.

Pumps are F90000274

Please select which one you require.



Click here to download installation instructions (PDF)

Instructions for older 20-041X-XX (these kits have been discontinued)
Watch an independent installation video

Toyota MK4 Supra (JZA80) 

The Radium Engineering fuel pump hanger permits the use of 1, 2, or 3 aftermarket pumps in the stock MK4 Toyota Supra (JZA80) fuel tank.

This system is compatible with the following fuel pumps:

Walbro F90000267 (not stocked by Radium Engineering)
Walbro F90000274
Walbro F90000285
Walbro GSS342 255lph
AEM 50-1200 E85

To simplifying aftermarket -AN hose plumbing, the 10AN ORB threaded feed port features a low profile 8AN male fitting and the 8AN ORB threaded return port features a low profile 6AN male fitting. To reconnect the OEM return and vent hoses, 8.5mm barb fittings are also included. Furthermore, no permanent modification to the OEM fuel tank access cover is required.

The custom designed stainless electrical studs easily handle the high current demand that compact bulkhead connectors lack. These serviceable connections are properly sealed and impervious to all standard and exotic fuels. The low profile design keeps all wiring tucked nicely underneath the OEM fuel tank cover using the provided foam insulation. Nonconductive acorn nuts are provided to prevent any accidental short circuits. Furthermore, the high quality in-tank wiring is insulated with chemically resistant ETFE. Electrical hardware is included for the fuel pump(s), OEM level sender, and OEM temperature sensor.

One issue with all Supra fuel pump hangers is the lack of fuel starvation protection. In this kit, the flow from the FPR return line powers a Radium jet pump. Using a venturi-effect, this “mechanical” pump draws fuel from outside the sub-tank and distributes it directly to the pump inlets.

As shown, the sub-tank stays full in all driving conditions.

A bespoke stainless steel triple pump mesh strainer is included for proper fuel pump inlet filtration.

Because all compatible fuel pumps utilize integrated check valves, the pump outlets merge into a single 10AN billet collector.

Single pump applications can reuse the OEM fuel pump controller wiring, but it is recommended to upgrade the OEM wiring as these high flow fuel pumps draw additional current requiring larger gauge wire. Fuel pump wiring kits can be purchased HERE. Select qty1 for single pump applications, qty2 for dual pump applications, and qty3 for triple pump applications.

-Drop-In OEM Replacement
-Permits 1-3 Fuel Pumps
-8AN Male Pump Outlet
-6AN Male Return Inlet
-Fuel Starvation Protection
-High Current Electrical Hardware
-Compatible with Various Pumps
-Anodized Aluminum Construction

-Anodized Aluminum 8AN Male Fitting for Pump Outlet
-Anodized Aluminum 6AN Male Fitting for Aftermarket Return
-Anodized Aluminum 8.5mm Barb Hose End for OEM Return
-Anodized Aluminum 8.5mm Barb Fitting for OEM Vent
-Anodized Aluminum OEM Fuel Sensor Mount
-Anodized Aluminum Venturi Jet Pump
-Fuel Resistant Submersible PTFE Tubing
-Fuel Resistant ETFE Insulated Wiring
-Stainless Electrical and Mounting Hardware
-Stainless Steel Mesh Triple Pump Filter

Additional information


Twin Walbro 485, Triple Walbro 485


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