Product information
*Even for the same vehicle model, installation may not be possible depending on the grade and year. Additionally, separate parts may be required for installation. For detailed compatibility information, please be sure to check the following:HerePlease check further.
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By increasing the valve opening pressure, a stable cooling effect is achieved.
By increasing the opening pressure of the pressure regulating valve to 127 kPa (1.3 kg/cm²), the boiling point of the coolant is raised. This maintains a high pressure within the cooling system, suppressing boiling and vaporization of the coolant. This ensures stable cooling performance during sporty driving. The seal uses a silicone gasket that boasts high heat resistance and durability. It maintains airtightness over a long period, preventing coolant leaks and pressure drops. It is compatible with a wide range of major Mazda models. >>Learn more