The radiator cap is an essential part of an upgraded cooling system. Radium caps are engineered to safely improve cooling efficiency by managing the boiling temperature. A higher radiator pressure effectively raises the coolant boiling point, providing an extra safety margin and preventing air pocket cavitation at the water pump.
1. 1.1Bar (16.0psi)
2. 1.3Bar (18.9psi)
3. 1.5Bar (21.8psi)
COMPATIBILITY
Below are popular vehicles with their respective radiator cap style used from the factory. NOTE: there are many vehicles not listed below.
Type-A
1990-1993 Acura Integra
1991-2005 Acura NSX
1990-1993 Honda Accord
1988-1991 Honda Civic
2016-up Honda Civic
1988-1991 Honda CRX
1992-2001 Honda Prelude
2003-2008 Infiniti G35
2008-2013 Infiniti G37
2014-up Infiniti Q50
2014-up Infiniti Q60
1992-2000 Lexus SC400
1990-1995 Mazda Cosmo
1989-2005 Mazda Miata
2006-up Mazda MX-5
1986-2002 Mazda RX-7
2004-2011 Mazda RX-8
1991-1999 Mitsubishi 3000GT
1990-1999 Mitsubishi Eclipse
2002-up Mitsubishi Lancer/EVO
1989-1998 Nissan 180SX
1989-1998 Nissan 200SX
1989-1998 Nissan 240SX
1990-1996 Nissan 300ZX
2003-2009 Nissan 350Z
2009-up Nissan 370Z
1988-1994 Nissan Cefiro
2005-up Nissan Frontier
2009-up Nissan GT-R
1989-2002 Nissan Laurel
1989-2002 Nissan Silvia
1989-up Nissan Skyline
2005-2006 Saab 9-2X
1997-up Subaru Forester
1993-up Subaru Impreza
1990-up Subaru Legacy
1991-1997 Subaru SVX
2015-up Subaru WRX STi
2015-up Subaru WRX
1982-1995 Toyota Celica
1985-1995 Toyota MR2
1986-1992 Toyota Supra
Radium Coolant Expansion Tank
