Description

Raise the boiling point of your coolant for increased cooling efficiency and prevention of overheating with the Cusco High Pressure Radiator Cap. Utilizing a reinforced main pressure valve spring and silicon seals, the internal pressure of the radiator is increased, resulting in a higher boiling point.

When coolant boils, small air pockets are created. As the coolant passes through the block and radiator core, the air pockets reduce the cooling efficiency and will eventually cause the engine to overheat.

Cusco's high-pressure radiator cap operates at 1.3kb/cm2 at zero atmospheric pressure. In theory, the atmospheric pressure of the road surface (approximately 1.0kg/cm2) is added and the pressure is 2.3kg/cm2.

Note: Operates from 2.3kg/cm2 Boiling point approximately 126.5 Degrees Celsius

This cap does not suit BRZ/86 OEM radiator.

Specifications

What's Included

  • 1 x 1.3 bar Radiator Cap

Compatibility

  • 2016-2024 MAZDA MX-5 (ND), NDERE
  • 1998-2002 SUBARU Forester (1st Gen), SF9
  • 2003-2008 SUBARU Forester (2nd Gen), SG9
  • 2018-2023 SUBARU Crosstrek (2nd Gen - GT), GT7
  • 2015-2021 SUBARU WRX (VA), VAG
  • 2015-2021 SUBARU WRX STi (VA), VAF
  • 2022-2025 SUBARU WRX (2nd Gen - VB), VBH

Raise the boiling point of your coolant for increased cooling efficiency and prevention of overheating with the Cusco High Pressure Radiator Cap. Utilizing a reinforced main pressure valve spring and silicon seals, the internal pressure of the radiator is increased, resulting in a higher boiling point.

When coolant boils, small air pockets are created. As the coolant passes through the block and radiator core, the air pockets reduce the cooling efficiency and will eventually cause the engine to overheat.

Cusco's high-pressure radiator cap operates at 1.3kb/cm2 at zero atmospheric pressure. In theory, the atmospheric pressure of the road surface (approximately 1.0kg/cm2) is added and the pressure is 2.3kg/cm2.

Note: Operates from 2.3kg/cm2 Boiling point approximately 126.5 Degrees Celsius

This cap does not suit BRZ/86 OEM radiator.

  • 1 x 1.3 bar Radiator Cap
  • 2016-2024 MAZDA MX-5 (ND), NDERE
  • 1998-2002 SUBARU Forester (1st Gen), SF9
  • 2003-2008 SUBARU Forester (2nd Gen), SG9
  • 2018-2023 SUBARU Crosstrek (2nd Gen - GT), GT7
  • 2015-2021 SUBARU WRX (VA), VAG
  • 2015-2021 SUBARU WRX STi (VA), VAF
  • 2022-2025 SUBARU WRX (2nd Gen - VB), VBH

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