HKS Radiator Cap Mazda MX5

An upgraded radiator cap is essential for any modified or tracked MX5 and can help improve the cooling efficiency of the car. HKS manufacture high-quality radiator caps with higher than OEM pressure ratings, ideal for turbocharged and supercharged MX-5s. This cap is pressured rated to 1.1kgf/cm2 (1.07 BAR / 15/6 PSI) HKS rad caps are manufactured out of stainless steel and feature silicone seals, as opposed to the OEM caps natural rubber, giving a higher heat tolerance and longer life span.