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GREDDY TRUST High Pressure High Temp Radiator Cooling Cap for Mazda RX8 (Series 1 & 2, 2003-2012)

Raise the boiling point and pressure of the cooling system with an uprated cap, helping prevent cavitation and supporting consistent temperatures.

$40

The GREDDY TRUST High Pressure High Temp Radiator Cooling Cap for Mazda RX8 Series 1 & Series 2 models (2003–2012) is a simple but important upgrade that raises the cooling system’s operating pressure for more efficient heat control.

  • Increases coolant system pressure to raise the boiling point and improve temperature stability
  • Manufactured with high-quality materials and a refined tension spring for long-term durability
  • Features a buffed metal finish with GREDDY TRUST branding, adding a neat detail to the engine bay
  • Direct replacement for the factory radiator cap with no additional modifications needed

You will gain extra confidence that your cooling system is working at maximum efficiency, providing an additional safety margin against overheating when you drive your 2003–2012 RX8 hard.

For a more complete cooling package, consider pairing this with GREDDY TRUST Aluminium Racing Radiator TW-R for Mazda RX8 (Series 1, 2003-2008) and SAMCO Silicone Coolant Hose Set for Mazda RX8 (Series 1 & 2, 2003-2012).

Additional information

SKU GT-RCC-S1S2 Categories , Types , Brand:

Related RX8 Upgrades

This high-pressure radiator cap is one of the best Mazda RX-8 upgrades you can make to your Mazda RX-8. Radiator pressure upgrades are among the top Aftermarket mods you can buy from GREDDY TRUST for owners who want better performance and reliability from their RX8. If you are looking for cooling radiator cap for sale in Brisbane (QLD), Sydney (NSW), Melbourne (VIC), Canberra (ACT), Adelaide (SA), Darwin (NT) or Perth (WA), you’ll find high-quality Japanese Cooling upgrades at RX8 Upgrades.