Radiator cap for selected Toyota, Lexus, Nissan, Infiniti, Subaru, Mitsubishi, Honda, Mazda, Daihatsu and Suzuki vehicles listed in the fitment table. NBR NRC-009B is designed to maintain stable cooling system pressure at 0.9 kg/cm2 / 88 kPa. The cap helps prevent coolant boiling, supports proper coolant circulation and protects the cooling system from pressure loss. Made from heat-resistant materials and manufactured to OEM-style dimensions for direct replacement without modification.