SKU: 70032307954

FST-R, WALBRO GSS342, AEM 50-1200/50-1000, PUMP NOT INCLUDED

Sale price$199.32 Regular price$221.47
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Description

FST-R, WALBRO GSS342, AEM 50-1200/50-1000, PUMP NOT INCLUDEDRADIUM FST R FEATURES Full CNC aluminum construction with O ring sealed interfaces Anodized for compatibility with all fuel types Integrated adjustable fuel pressure regulator with 1: 1 vacuum reference Interchangeable regulator orifice sizes to match output of different pumps Nickel Plated Electrical Connector with 24" Flying Leads Assembled with stainless steel hardware Three 6AN male fittings (8AN can be purchased separately) RADIUM FST R The FST R

RADIUM FST-R FEATURES
-Full CNC aluminum construction with O-ring sealed interfaces
-Anodized for compatibility with all fuel types
-Integrated adjustable fuel pressure regulator with 1:1 vacuum reference
-Interchangeable regulator orifice sizes to match output of different pumps
-Nickel-Plated Electrical Connector with 24" Flying Leads
-Assembled with stainless steel hardware
-Three 6AN male fittings (8AN can be purchased separately)

RADIUM FST-R
The FST-R (Fuel Surge Tank–Regulated) is an all new design that houses a single internal fuel pump and has an integrated fuel pressure regulator machined into the top cap. The high-flow regulator is adjustable and features interchangeable orifice sizes. This revolutionary idea eliminates the need for an external fuel pressure regulator along with the extra fittings and hoses. This simplifies the installation, reduces overall cost, reduces weight, and eliminates potential leak points in the fuel system. Furthermore, this system permits cooler fuel temperatures as the fuel is not returning from the hot engine bay. Like all Radium fuel surge tanks, this universal product can be used on any fuel injected application and is compatible with all fuel types.

The FST-R can be configured with all 39mm fuel pumps from many leading manufacturers. Note: The FST-R is not available in dual-pump configurations. If the pump is purchased as part of the FST-R, the surge tank will come fully assembled and will be pressure tested for leaks and ready to be installed. If the pump is purchased elsewhere, some assembly will be required.

The side port is the regulated pressure output and is plumbed directly to the fuel rail(s). No additional fuel pressure regulator is required. Pressure adjustment is done using the adjustment screw located on the top cap of the regulator unit. A vacuum line hooks up to the nipple on the FST-R to achieve 1:1 vacuum reference. Note: returnless fuel systems commonly use a constant fuel pressure. In this case, the vacuum reference hose is not required.

The FST-R is no taller than a standard fuel surge tank with hoses installed.

Two interchangeable orifices are included with calculated flow diameters to match the fuel pump flow to the regulator. Furthermore, this added precision will resist diaphragm flutter and optimize pressure stability.


A fuel pressure gauge is needed in order to set and monitor fuel pressure and should be located along on the output line or at the fuel rail. The Radium universal fuel pressure gauge is perfect for this duty.

For the 20-0368-00 Ti Automotive E5LM FST-R, a 20-0598 check valve is included to prevent backflow.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70032307954

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Michael Bruns
Whiting, US
★★★★★ 5
Comfort and excellent bang for your buck
Size: 10 Wide, Color: Brown
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Reviewed in the United States on May 7, 2026
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Paulie G
Chelsea, US
★★★★★ 5
Nice looking Shoes
Size: 9, Color: Brown
These shoes are very nice. I never heard of the name Bruno Marc before, but I will say the shoes are extremely comfortable, and they look like similar high end shoes at the fraction off the cost. Very light and durable.
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Reviewed in the United States on May 10, 2026
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Birmingham, US
★★★★★ 5
Comfortable casual dress shoes that look good too
Size: 13, Color: Black
Needed a nice pair of casual dress shoes. These turned out perfect for me. Comfortable and looks good.
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Reviewed in the United States on May 31, 2026
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James Combs
Chelsea, US
★★★★★ 5
Very comfortable good fit.
Size: 13 Wide, Color: Black
Good looking, very comfortable and the price was great.
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Woody
Houston, US
★★★★★ 5
Good Shoes with a Good Look
Size: 13, Color: Black
Very comfortable. Very light. Very affordable.
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