Radium Replacement FPR Spring Hat This is a genuine Radium Engineering replacement spring hat designed to suit all Radium fuel pressure regulators, including the DMR (Dual Multi-Port Regulator) and Multi-Pump Regulators. The spring hat is a critical internal component of the FPR assembly, seating the regulator spring and maintaining consistent fuel pressure under all operating conditions. An essential spare part for any build running a Radium FPR — recommended to have on hand for track days, endurance events, or high-demand fuel system servicing. Suits: All Radium Engineering fuel pressure regulators — including DMR and Multi-Pump Regulator variants Kit Includes: 1x Replacement FPR spring hat Available Part Numbers: 18-0052 — Replacement FPR Spring Hat (all Radium FPR models) Why Radium Engineering? ✅ Manufactured in the USA to motorsport-grade tolerances ✅ CNC-machined billet aluminium components for precision fit and long-term durability ✅ Trusted by tuners and race teams running high-power builds worldwide ✅ Direct OEM-spec replacement — no modification required ✅ Compatible with all Radium FPR variants including DMR and Multi-Pump Regulators
