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The HKS Type S radiator cap is designed to increase the opening and closing pressure of your car's cooling system. The increase in pressure to 1.1kg/cm2 / 108kPa allows an improvement in cooling system efficiency. The under cap seal is made from high-temperature silicone rubber and improves sealing characteristics. This cap will work with the MK3/MK4 Supra, SW20 MR2, and the Lexus IS300 with KOYO radiators. Please note this radiator cap may not work with your stock radiator.
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🇺🇸 Ship from USA · On Agora since 2026
$39.99