By Radium Engineering

Radium FCST-X SPARE DROP-IN PUMP MODULE,

Regular price $989.00
Regular price Sale price $989.00
Shipping calculated at checkout.
Availability: In stock
SKU: 20-199X
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Regular price $989.00
Regular price Sale price $989.00

SPARE DROP-IN PUMP MODULES
An FCST-X spare drop-in pump module is an additional lift and surge pump assembly for super fast pit stops. If fuel pressure issues arise, 9 bolts out and back in will get your team back on the track. Pumps are not included.

Radium P/N: 20-1996 is shown below.

PUMP COMPATIBILITY
- Walbro GSS342
- AEM 50-1200
- *Deatschwerks DW440
*Use the electrical connector provided with the pumps.

Radium P/N: 20-1997 is shown below.

PUMP COMPATIBILITY
- **Bosch BR540
- *Deatschwerks DW400
*Use the electrical connector provided with the pumps. For the lift pump, use the filter sock provided with the pump.
**Because this pump does not include a built-in check valve, multiple surge pumps must be ran together (not staged).

Radium P/N: 20-1998 is shown below.

PUMP COMPATIBILITY
- Walbro F90000267
- Walbro F90000274
- Walbro F90000285
- *Walbro F90000295
*Because this pump does not include a built-in check valve, multiple surge pumps must be ran together (not staged).

Radium P/N: 20-1999 is shown below.

SURGE PUMP COMPATIBILITY
- *Ti Automotive E5LM (check valves included)

LIFT PUMP COMPATIBILITY
- *Ti Automotive E5LM
- **Walbro F90000267
- **Walbro F90000274
- **Walbro F90000285
- **Walbro F90000295
*This pump requires a brushless controller. These typically come standard when purchasing the pump. See Ti Automotive BKS1001.
**For these pumps, it is recommended to use the Radium Engineering 14-0143 filter sock.

FUEL LEVEL SENDER
The FCST-X comes standard with a fuel level sender block-off plate. However, SAE fuel level sensors of various lengths can be purchased separately HERE.

FUEL LEVEL SWITCH / DIAGNOSTIC INDICATOR
The FCST-X comes standard with a 2AN ORB plug preinstalled in the "level switch" port. For information on adding a fuel level switch and diagnostic indicator, click HERE. This little device provides a warning when the fuel level inside surge tank canister drops by 20% or more. 

EXTENSION KIT FOR FCST-X
For added surge tank volume on deep fuel cells, click HERE. NOTE: Radium Engineering does not assemble these when purchasing an FCST-X. This kit must be installed by the end user.

What clients say


  • Really fast and high quality customer support, my order got to me faster than the quoted time too. No complaints

  • The team took a mostly broken car after some work done elsewhere, and have systematically made it reliable and fast for a fair price. The staff are invested in the work they do which also makes a big difference.

  • Jeff was extremely helpful in assisting me with my exhaust. Always kept me updated and answered any queries in a timely manner. Will definitely be coming back for my future mods

  • Justin and his crew is amazing! Always ready to help and service with a smile. Trusty, friendly and reliable! Had my car sent in for repair twice and it’s fixed on time, at a reasonable price and with no issues. Highly recommended!

  • Easy to deal with and part was ordered quickly

Fitment & Compatibility


How do I know if this part fits my car?

We recommend checking your vehicle's make, model, year, and variant carefully. Most product listings include compatibility notes, but if you're unsure, contact us before purchasing.

Can you confirm fitment before I place my order?

Absolutely. Send us your VIN or Rego and we’ll confirm fitment for you.

Do you offer installation at your workshop?

Yes, we offer installations for most parts at our Ringwood workshop. Contact us to book or get a fitting quote.

Shipping & Handling


How long will it take for my order to arrive?

Most in-stock items ship within 1-2 business days. Delivery time depends on your location and shipping option chosen at checkout.

Do you ship internationally?

Currently, we only ship within Australia. For international enquiries, please contact us directly.

Can I pick up my order in person?

Yes, local pickup is available from our Ringwood workshop. Simply select ‘Local Pickup’ at checkout and we’ll notify you when your order is ready.

Please note: Some items are stored offsite and may need to be transferred from our warehouse, which can add a few business days before pickup is available.

Returns & Warranty


Can I return a product if it doesn’t fit?

Returns are accepted within 14 days if the item is unused and in original packaging. Please see our full Returns Policy for details.


What warranty comes with your products?

All products come with the manufacturer’s warranty. If you experience any issues, contact us and we’ll assist with the claim process.