KOYO Aluminum Radiator - 2004-09 Mazda3 2.3L & 2007-09 MazdaSpeed3 (36mm - KH061816) - Leave your cooling concerns behind with the installation of a KOYO Racing performance radiator. The V-Series (1 7/16" - 36mm) KOYO Radiator provide greater cooling coverage for both street and track applications.
Construction is held to tight quality control standards that are illustrated in the outstanding Heliarc soldering, pristine tube and fin alignment, and mirror-like surface finish. The tubes, fins, headers, and brackets are brazed in a state-of-the-art Nocolok furnace, which bonds these components into a virtually indestructible radiator unit.
All fan mounts are situated to OE specifications, and using the OEM mounting locations facilitates fitment into the 2004-09 Mazda3 2.3L & 2007-09 MazdaSpeed3.
- MT only - Auto transmission models required the installation of an external transmission oil cooler.