Koyorad is a Japanese company established in July of 1956 as Ejiri Radiator in Nagoya, Japan as a radiator repair shop. In 1968, Ejiri Radiator established a radiator and oil cooler factory in Nagoya. Koyo then separated their production facilities from their repair facilities and began manufacturing radiators. Two years later in 1970, Ejiri Radiator was renamed to Koyo Radiator Manufacturing. Koyo quickly developed into an industry leading Aftermarket Radiator Supplier worldwide.