Radium Radiator Cap for Mazda MX-5
An upgraded radiator cap is essential for any modified or tracked MX5 and can help improve the cooling efficiency of the car.
Radium provide a variety of high-quality radiator caps with higher than OEM pressure ratings, ideal for turbocharged and supercharged MX-5s.
Pressure ratings and colours available:
- 1.1Bar (16.0 PSI) (Polished)
- 1.3Bar (18.9 PSI) (Black)
- 1.5Bar (21.8 PSI) (Black)
Radium rad caps are manufactured out of stamped stainless steel and feature silicone seals, as opposed to the OEM caps natural rubber, giving a higher heat tolerance and longer life span.