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Item Number: KV030939REngine: 4G63Chassis: E-CN9A/E-CP9ADimensions (mm): 375* 710* 36Oem Code: MR340577Core Size (mm): 36

Koyo is a Japanese company established in July of 1956 as Ejiri Radiator in Nagoya, Japan (Aichi Prefecture) as a radiator repair shop.  Twelve years later in 1968, Ejiri Radiator established a radiator and oil cooler factory in Nagoya.  We then separated our production facilities from our repair facilities and began manufacturing radiators.  Two years later in 1970, Ejiri Radiator was renamed to Koyo Radiator Manufacturing and began expanding to branches all over Japan.  Koyorad quickly developed into an industry leading Aftermarket Radiator Supplier worldwide.  With over 57 years of radiator design and manufacturing experience, founder Mr. Ejiri and son soon gained interest in automotive racing.
Officially launched in 1999 in Japan, Koyorad Racing Radiators soon made a presence in Japan’s ever popular racing scene.  Koyorad Racing Radiators soon became synonymous with Koyo’s High Quality Aftermarket Radiators.  As Koyorad Racing Radiators grew in reputation for quality and performance, so did the company’s desire to expand.  In 2004, Koyorad Racing Radiators made it’s US debut.  What started as a few racing applications for Japanese vehicles in 2004 has now in 2013 grown to over 80 models for Japanese, US Domestic, and Korean vehicles.
Koyo incorporates application specific mounting locations for all fan shrouds, inlet/outlet hoses and top/bottom mounting pins, ensuring quick and pain-free installs. Each Koyo All Aluminum Race Radiator is Heliarc welded individually by hand. This creates the strongest aluminum-to-aluminum bond, to mate all components.
Precision machined billet filler necks are incorporated on each Koyo radiator for strength, durability and better sealing.
OE Specific Mounting and Hand Crafted Heliarc Welds
Koyo incorporates application specific mounting locations for all fan shrouds, inlet/outlet hoses and top/bottom mounting pins, ensuring quick and pain-free installs. Each Koyo All Aluminum Race Radiator is Heliarc welded individually by hand. This creates the strongest aluminum to aluminum bond, to mate all components.



Ross Sport Europe was founded in 2006 by Ross Walker.
Ross has been a passionate Japanese car fanatic since the early 1990s, graduating up through many Japanese sports cars. When he got his first Evo, he was completely smitten with the entire package. Even to this day, nothing comparable has ever been produced by any manufacturer.
Ross Sport Europe was originally born out of the need to develop new parts to further improve the Evo. Initially, Ross was producing these for his own car and for fellow enthusiasts, but it quickly grew in to a small business and the rest was history!
Ross's involvement with Evo motorsport, together with his will to take the Evo platform further in terms of its performance, has led to a number of notable record achievements which still stand today.
In 2011, Gavin Taylor joined the Ross Sport Europe team, bringing a wealth of knowledge and extensive experience in both OEM and aftermarket Evo parts.
Ross Sport Europe's mission is to provide proven quality parts as well as the finest customer service and technical support in the industry.