About

  • Technology
  • The Difference

    • Installation

      Koyo is committed to manufacturing radiators that meet and even exceed OE standards. Koyo radiators do not require any drilling, cutting, or relocating, yet the company highly recommends leaving the installation to a professional mechanic.

      Recommended Antifreeze Coolant

      A high-quality antifreeze and coolant protect your engine by lowering water's freezing point and raising its boiling point. They protect metal components of your radiator and cooling passages within your vehicle's engine against rust and corrosion. It also provides proper lubrication for the engine water pump.

      It is important to use proper coolant in your Koyo OE Aftermarket Replacement Radiator. The company highly recommends you to use a coolant grade listed in your vehicle owner’s manual.

      When a new Koyo OE Aftermarket Replacement Radiator is installed, you should perform a complete cooling system flush and fill it with a new coolant mixed 50/50 with distilled, de-ionized or de-mineralized water. Neglecting a full cooling system flush or using the wrong coolant may result in corrosion, leaks, and premature wear and tear, not to mention other stresses on your engine's cooling system.

      Koyo Cooling Systems, Inc. OEM Aftermarket Replacement Radiator Limited Warranty

      Subject to the obligations and exclusions below, Koyo Cooling Systems, Inc. (Koyo) warrants that the Koyo-brand OEM replacement radiators (the Products) will be free from defects in material and workmanship under normal use and service for 18 months from the date of sale of the Product to a Koyo authorized supplier in the United States. Koyo will, at its sole absolute discretion, either repair or replace a Product with a new or rebuilt Product (a Product may include new and/or reconditioned parts) if found by Koyo to be defective in material or workmanship. All replaced or refunded parts will become the property of Koyo.

      Obligations

      In order to obtain warranty service, you must deliver the Product, together with the original sales receipt describing the Product, to and pick it up from a Koyo authorized service center within the warranty period at your expense.

      Exclusions

      This limited warranty is not transferable to any third party, including but not limited to any subsequent purchaser or owner of the Product. This limited warranty does not cover, and is void with respect to: (i) improper installation, storage, repair, maintenance, modification, defects or failures due to misuse, neglect, negligence, abuse, accident, physical damage, improper handling or shipping, abnormal operation or operation contrary to furnished instructions or warnings, exposure to fire, water, excessive moisture or dampness, or any substance inside or outside the operating system, or extreme changes in climate or temperature; (ii) cosmetic damage; (iii) Products with removed, altered or illegible serial numbers; (iv) cost of installation, removal or re-installation; or (v) damage resulting from fire, flood, or other acts of God or other acts which are not the fault of Koyo.

      Koyo specifically disclaims liability for any and all direct, indirect, special, general, incidental or consequential damages, including but not limited to loss of profits or anticipated profits arising out of use of or inability to use any product. Repair or replacement, as provided under the warranty, is your sole and exclusive remedy for breach of the limited warranty. Except to the extent prohibited by applicable law, and implied warranty of merchant ability or fitness for a particular purpose is limited in duration to the duration of this warranty. To the extent permitted by applicable law, Koyo makes no other warranties of any kind, express or implied, with respect to the products, including, but not limited to any warranty against infringement.

      Some states do not allow exclusions or limitations of incidental or consequential damages, or allow limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you. This limited warranty gives you specific rights, and you may also have other rights which vary from state to state.

    • The Difference

      Koyo is a Japanese company established as Ejiri Radiator repair shop in July of 1956 in Nagoya, Japan (Aichi Prefecture). Twelve years later, in 1968, Ejiri Radiator opened a radiator and oil cooler factory in Nagoya. The company then separated their production facilities from the repair facilities and began manufacturing radiators. Two years later, in 1970, Ejiri Radiator was renamed to Koyo Radiator Manufacturing and began expanding all over Japan. Koyorad quickly developed into an industry leading aftermarket radiator supplier.

      Engineering, Research and Development

      In Japan, Koyorad employs a team of more than 20 engineers that have over 54 years of combined experience. This ensures that the aompany's customers receive products of the best quality, performance, and fit. At Koyorad, they continuously strive to find ways to improve and implement new technologies in their Radiators and Condensers.

      Koyo uses only Japanese-made equipment and sources only the finest aluminum when producing its products. The combination of skilled engineers, quality materials and precision manufacturing is what has earned Koyorad its reputation for performance and reliability.

      Testing

      Before any new model is introduced to the market, it is extensively tested for fit, finish, and performance. From installation to road testing, when you purchase a Koyorad Racing Radiator, you are getting a superior quality product that is built to last.