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Radium Radiator Cap

Radium Radiator Cap

SKU: 18-0076-A11

Regular price $29.95
Sale price $29.95
Pressure Relief Spring
This is an estimated ship date once your order is placed from JHPUSA. Ship dates do not include weekends and holidays.

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.

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.

Available with 3 different pressure relief springs:

  • 1Bar (16.0psi)
  • 1.3Bar (18.9psi)
  • 1.5Bar (21.8psi)

Vehicle Fitment:


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


1994-2001 Acura Integra
2002-2006 Acura RSX
2004-2008 Acura TSX
1994-1997 Honda Accord
1992-2015 Honda Civic
1993-1997 Honda Del Sol
2003-2011 Honda Element
2007-up Honda Fit
2000-2009 Honda S2000


We realize that returns and exchanges are a part of the purchasing process and we do our best to make it as easy as possible. If you are not 100% satisfied with your purchase, you can return your order to JHPUSA within 14 DAYS from the invoice date.

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