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Kobe Motorsport High Pressure 1.3 Bar Radiator Cap - Subaru

Kobe Motorsport High Pressure 1.3 Bar Radiator Cap - Subaru


Kobe Motorsport high performance radiator caps are engineered to improve cooling efficiency. The radiator cap is an essential part of an upgraded cooling system and will help to safely maximize engine performance by controlling the coolant boiling point. Each OEM replacement radiator cap is manufactured from pressed steel and coated in black powder coating for durability and feature silicone sealing elements that are superior to natural rubber gaskets.


A higher radiator coolant pressure (1.3Bar) effectively raises the boiling temperature of the coolant, providing extra safety margin and preventing air pocket cavitation at the water pump. A great upgrade for those who track their Subaru or live in a climate that has higher ambient temperature.



Below are popular vehicles with their respective radiator cap style that is used from the OEM factory. NOTE: there are many vehicles not listed below that use one of these radiator cap styles. If unsure, please message us to comfirm.



  • 1993-up Subaru Impreza
  • 1990-up Subaru Liberty (except for stock ez30 H6 radiators)
  • 2015-up Subaru WRX STi
  • 2015-up Subaru WRX


*However this will fit our H6 EZ30 Alloy Radiator because we utilise the same fill neck as WRX/STI

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