Radium Engineering Radiator Cap Type-A 1.5 Bar Black Green 18-0076-A15

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. 

Please confirm what style your application uses prior to ordering. NOTE: Traditionally, "radiator" caps are mounted to the radiator but can also be found on coolant expansion tanks.

Each OEM replacement radiator cap is manufactured from stamped stainless steel for durability. All 18-0076-X1X radiator caps are electroplated black.

Unlike OEM caps which use natural rubber gaskets, these radiator caps feature premium silicone sealing elements for long lasting durability. 

PRESSURE

1.5Bar (21.8psi)

TYPE
Radium radiator caps are designed for mini size (32mm ID) radiator necks only. (Type-A).

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 & 2016-up Honda Civic
1988-1991 Honda CRX 
1992-2001 Honda Prelude

2003-2008 Infiniti G35
2008-up Infiniti G37
2014-up Infiniti Q50
2014-up Infiniti Q60

1992-2000 Lexus SC400

1990-1995 Mazda Cosmo
1990-2005 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
1989-2002 Nissan Skyline

2005-2006 Saab 9-2X

1997-up Subaru Forester
1993-up Subaru Impreza
1990-up Subaru Legacy
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