Collection: Koyorad

Coore is an Authorised Australian Distributor of Koyorad performance radiators, dealing direct with Koyorad Japan. You can order online from Coore, or contact our team in Somersby, NSW on (02) 4311 5311 or sales@coore.com.au. Workshops and retailers can apply for a wholesale account.

Yes. Koyorad is the brand name used for Koyo performance radiators, and many enthusiasts simply call them "Koyo radiators". Every Koyorad listing at Coore shows the Koyorad part number, core thickness and the vehicles it fits.

Core thickness. The 36mm performance radiators are an all-aluminium upgrade over the factory radiator for street and occasional track use. The 48mm racing radiators have a thicker core for more cooling capacity on track, in time attack or in high-power builds. A few applications use other core sizes — check the specifications on each listing.

Koyorad Performance Radiators feature an all-aluminium construction with high-density cores. Unlike factory radiators that use plastic end tanks (which are prone to cracking and leaking over time), Koyorad radiators are fully TIG-welded aluminium. This design significantly improves heat dissipation, increases coolant capacity, and provides maximum durability for both street driving and track days.

Yes! Koyorad designs their performance radiators to factory specifications for a true drop-in installation. They are engineered to use your factory mounting points, fan shrouds, and hoses without requiring any major modifications or custom fabrication.

Most Koyorad All-Aluminium Performance Radiators do not include a radiator cap, and they often require a Koyorad-specific cap (such as the Koyorad SK-C13 or similar) due to differences in the filler neck size compared to OEM. Please check the specific product description to see if you need to add a Koyorad radiator cap to your order.

The majority of Koyorad's all-aluminium performance radiators are designed specifically for Manual Transmissions, as they do not feature the built-in transmission cooler lines found in automatic OEM radiators. If you have an automatic transmission, you will typically need to install an external transmission cooler to use a manual Koyorad performance radiator.

We highly recommend using a high-quality, OEM-spec anti-freeze mixed with distilled water (usually a 50/50 mix). Never use tap water, as the minerals can cause corrosion and scale build-up inside the aluminium core, which will void the warranty and reduce cooling efficiency.

Yes, Koyorad offers a limited warranty against manufacturer defects. To ensure the warranty remains valid, the radiator must be installed properly, and the cooling system must be flushed and filled with the correct mix of distilled water and premium coolant.