Koyorad offers our experience of 56 years in the heat exchange industry and is renowned for manufacturing products of highest quality, performance, and fit-and-finish. Koyorad has earned this exceptional reputation through our company’s strict quality control measures. Initially, Koyorad was the leading manufacturer of OE Aftermarket radiators in Japan. After over 10 years in the US, we now offer the same level of quality for US and Europe markets. Koyo radiators are manufactured to the stringent quality and performance tests required by the OE’s, holding Koyo to a much higher standard. This makes Koyo the obvious choice for your vehicle for the best reliability.