Radium Engineering Fuel Level Switch Plus Diagnostic Indicator

Radium Fuel Level Switch Plus Diagnostic Indicator

Application: Universal – fuel containers with a 1/8" NPT port, including Radium FST, MPFST, MPFST-R, FCST and FCST-X surge tanks
Part Type: Fuel level switch with LED diagnostic indicator kit
Part Number: 20-0519

This kit combines the Radium Engineering 1/8" NPT fuel level switch (20-0461) with the fuel level diagnostic indicator (20-0508). The stainless steel switch installs inside the fuel container and provides a switched signal when the fuel level drops, which can drive a dashboard warning light, a programmable ECU input for engine safety, or lift pump on/off control.

The LED indicator mounts in a 2AN ORB port and gives a visual confirmation of the switch state. It is often not practical to view while driving, so it is mainly used to diagnose a potential fuelling issue.

Key Features

• Switched Output: Drives a dash indicator, ECU safety input or lift pump control
• Diagnostic LED: Visual confirmation of switch operation for troubleshooting
• 1/8" NPT Switch: Stainless steel, corrosion resistant
• 2AN ORB LED Mount: LED mounts in a 2AN ORB (5/16"-24) port
• Reversible Polarity: Remove the E-clip and flip the float to reverse the signal
• Flying Leads: 24" (610mm) 20AWG leads on the switch
• Fuel Compatibility: Suits all fuel types

What's Included

• 1x Fuel level switch with flying leads
• 1x LED with flying leads
• 1x 2AN ORB LED mount
• Eyelet terminals
• Heat shrink
• Abrasion sleeve

Important Notes

• The switch must be installed inside the fuel container
• Check the signal direction on a test bench before installing – polarity can be reversed by removing the E-clip and flipping the float
• Requires a 1/8" NPT port for the switch and a 2AN ORB (5/16"-24) port for the LED
• If the LED is stacked on the level switch, the panel thickness must be at least 0.75" (19mm)
• Soldering is required to install the LED
• Always apply PTFE thread sealant paste to tapered pipe threads
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• Radium FST and Standard FST (current versions with level switch port)
• Radium MPFST and MPFST-R multi-pump fuel surge tanks
• Radium FCST and FCST-X fuel cell surge tanks
• Universal – see Application

If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.

Installation

We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.

Note

Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.