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)

Part Number

VH332663