Radium Fuel Level Switch, 1/8" NPT

Radium Fuel Level Switch, 1/8" NPT

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
Part Number: 20-0461

The Radium Engineering fuel level switch installs inside a fuel container through a 1/8" NPT port and provides a switched signal when the fuel level drops. That signal can drive a dashboard warning light, a programmable ECU input for engine safety, or lift pump on/off control.

The switch is made from corrosion-resistant stainless steel, is compatible with all fuel types and is supplied with 24" (610mm) long 20AWG flying leads.

Key Features

• Switched Output: Drives a dash indicator, ECU safety input or lift pump control
• 1/8" NPT Mount: Threads into a 1/8" NPT port inside the fuel container
• Stainless Steel: Corrosion-resistant construction
• Reversible Polarity: Remove the E-clip and flip the float to reverse the signal
• Flying Leads: 24" (610mm) 20AWG leads
• Fuel Compatibility: Suits all fuel types

What's Included

• 1x Fuel level switch with flying leads

Optional Parts

• Radium Fuel Level Diagnostic Indicator (20-0508) – LED indicator for diagnosing the switch signal and potential fuelling issues
• Radium Fuel Level Switch Plus Diagnostic Indicator (20-0519) – kit combining this switch with the 20-0508 diagnostic indicator

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 threaded port
• Always apply PTFE thread sealant paste to tapered pipe threads
• For Radium FST and Standard FST tanks, only current versions are compatible – look for the level switch port on top of the tank
• 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

Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.