Koyorad Racing Radiator – Honda Civic Type R FK8 (2017+)

Overview

Enhance your cooling system with the Koyorad 48mm “HH” Series Racing Radiator, designed specifically for the 2017–2021 Honda Civic Type R FK8. This high-performance aluminium radiator features Koyorad’s ultra high-density Hyper Core technology, engineered for maximum heat transfer and reliability under extreme conditions. A true drop-in replacement for the factory radiator, it installs with no modifications required and is compatible with OEM fans and A/C components.

Each Koyorad radiator is built in-house in Japan to the highest standards, utilising Nocolok-R brazing, hand TIG welding, and precise tube and fin alignment to deliver consistent performance and unmatched durability. An integrated 1/8” NPT sensor port (with included plug) allows easy installation of aftermarket temperature sensors.

Key Features

Koyorad “HH” Series 48mm high-efficiency Hyper Core
Direct-fit design for easy OEM replacement
Ultra high fin density for superior heat dissipation
All-aluminium construction with TIG-welded end tanks
Nocolok-R brazed core for maximum durability
Billet aluminium filler neck with high-pressure cap
1/8” NPT accessory fitting for temperature sensors (plug included)
Compatible with factory fans and A/C condenser
Ideal for track use, high-power builds, and street performance

Construction Details

Core Thickness: 48mm
Core Type: Hyper Core, high-density fin layout
Material: All-aluminium (core and tanks)
Finish: Raw aluminium
Sensor Port: 1/8” NPT with plug included

Vehicle Compatibility

Honda Civic Type R FK8 (2017–2021)