Koyo aluminum racing radiators are designed to be direct factory replacement units for the manual transmission 2004-2009 Mazda3 and 2007-2009 MazdaSpeed3. Koyo racing radiator features a much thicker core with a more efficient fin design that helps with flow and temperature drop over the surface. Koyo is Japans largest aftermarket radiator manufacturer, utilizing the latest aircraft quality aluminum and Heli-arc welded. Heli-arc soldering is the highest quality standard for enforcement along aluminum connections.
- All aluminum construction
- Heli-arc welded for stronger enforcement along aluminum connections
- Thicker core
- Precise tube and fin alignment promotes optimal coolant flow and fins with highly efficient heat transfer
- NoClock Brazing is featured on the tubes, fins, headers and brackets using a state-of-the-art NoClock furnace which bonds all components to resist damage from vibration, road debris, and the elements
- Billet Filler Neck is precision machined for durability
Please note: Image is for reference only, actual part may vary.