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HKS 15009-AK004 D1 Limited Edition Radiator Cap
Specification is 1.1 kilograms per square centimeter
Made in Japan
Exclusive line of branded accessories and apparel lets you make the style statement
HKS High Pressure Radiator Cap Limited Race Edition for most of Mazda, Mitsubishi, Nissan, Subaru's vehicles. In a cooling system, a higher pressure equates to a higher boiling point for the coolant. Higher coolant pressures also transfer heat from the cylinder heads more efficiently. A radiator cap with the high pressure rating that the radiator is designed to accept.