Set Your 11th Gen Honda Civic Catalog
A down arrow

Koyo Hyper Radiator Cap for 11th Gen Honda Civic

General Representation
General Image (Actual Part May Vary)
Fits:
Honda Civic - 2023 to 2025 - Hatchback [FL5 Type R]
Notes:
  • Red
  • 1.3 Bar
More Info:
Pressure set at 1.3 Bar (18.9 PSI). Fits on the factory expansion tank.
List Price:
$49.20
Our Price:
$38.97
You Save:
$10.23
 
 
(shipping rates shown in cart)
Select an Application For Your
11th Gen Honda Civic
 
Year Range
Door Config  [Trim Level]
Application / Notes
2023 to 2025
Hatchback [FL5 Type R]
(Red) (1.3 Bar)
Universal
(Type A) (For Most Nissan, Infiniti, Subaru, Mazda, and Mitsubishi Vehicles) (Red) (1.3 Bar)
Universal
(Type A) (For Use With All Koyo Performance Radiators) (Red) (1.3 Bar)
Universal
(Type B) (For Most Honda, Acura, Toyota, Lexus, and Scion Vehicles) (Blue) (1.3 Bar)
 
🔰 Honda Civic Fitment Help
Quicker Navigation & Better Info
Set Your Car Once & Site Customizes For It

This is the recommended radiator cap for use directly on any Koyo radiator, but can also work on factory radiators as well.

The Koyo Hyper Radiator Cap helps increase your car's operating coolant pressure to help raise the boiling point of the water in the system. Most cars come equipped with a low pressure radiator cap but for extreme race conditions, a much high relief pressure is necessary. With the 1.3 Bar relief pressure that this cap offers, it will effectively raise the boiling point of the water in the cooling system to 267.8 degrees Fahrenheit. This will aid in the effectiveness of your cooling system and provided added heat capacity. Koyo also went through the trouble of making sure this was a quality item that exceeds expectations, featuring thicker metal to prevent the cap from coming off and also a silicone based gasket to provide a consistent seal and long lasting performance.

 Narrow Down Selections By Your 11th Gen Honda Civic's Year
Application
(Clicking a link will change you to the given Honda Civic's year catalog)
Starting @
Koyo Hyper Radiator Cap for 2025 Honda Civic
$38.97
Koyo Hyper Radiator Cap for 2024 Honda Civic
$38.97
Koyo Hyper Radiator Cap for 2023 Honda Civic
$38.97
View All Koyo Hyper Radiator Cap for All Honda Civic Years

  Don't have a 11th Gen Honda Civic?

Our Customers Love Us - See our Reviews
...Loading Reviews