KOYO 55mm R2277 Aluminum High Performance Miata Radiator :: 99-05

Made by Koyo of Japan. All aluminum construction, polished tanks, gorgeous, affordable, and effective. With a 2 and 1/16th inch thick core (55mm) you will never again have cooling problems.

These Koyo Miata radiators are very popular with our Spec Miata customers for their great price and value. Has all OEM connection points and the OEM fans bolt on. If you have large tubular aftermarket sway bars note that you will need to trim the fan housings slightly because this thick core will push the fan housings back to the location of the OEM sway bar and aftermarket bars are thicker!

Note that this miata radiator is THREE times thicker than a stock miata radiator on 99-05 cars and, therefore, fit is tight! We have had a few reports of potential interference with factory air conditioning condenser and you may need to modify that mounting bracket to get this massive miata radiator core in.

For those that don't want the fuss....see our 37mm core miata radiator. Intended for Manual Transmission Only.