Radium Engineering FPR Spring
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Radium Engineering FPR Spring - Universal - Wide Range
Radium Engineering builds precision fuel system hardware for motorsport and high performance street applications, and this wide range internal spring is a direct replacement component for select Radium fuel pressure regulators and pulse dampers. It's designed to extend the adjustable pressure range of your existing regulator, giving tuners more headroom when dialling in fuel pressure for forced induction or high flow builds.
This listing covers the wide range spring (SKU 18-0046) for use with the Radium MPR Regulator (20-0100-00, 20-0100-01), the Radium DMR Regulator (all versions), and the Radium FPD-R Pulse Damper (20-0176, 20-0178). It is a spring only and does not include the regulator or damper housing.
Note: This spring is intended solely as a service replacement or upgrade part for the specific Radium products listed above. Confirm your regulator or damper part number before ordering to ensure correct fitment.
Key Features
- Wide range internal spring for extended pressure adjustment
- Direct replacement for the factory installed spring
- Compatible with Radium MPR, DMR, and FPD-R components
- OEM quality construction for consistent, reliable performance
- Suited to motorsport, track, and high performance street fuel systems
Compatible part numbers and fitment notes for each regulator and damper are listed in the tabs above. Please confirm your Radium component's part number before ordering.
Not sure if this spring suits your Radium regulator or damper? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
Universal fitment — verify dimensions before ordering.
Technical Specifications
| Spec | Value |
|---|---|
| Part Number | 18-0046 |
| Type | Wide range internal spring |
| Compatible with MPR Regulator | P/N 20-0100-00, 20-0100-01 |
| Compatible with DMR Regulator | All versions |
| Compatible with FPD-R Pulse Damper | P/N 20-0176, 20-0178 |
No instructions available for this product.

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