Mishimoto Thermostat for Mazda MX-5 Miata 1.8L (1990–1997) Optimize cooling performance in your NA Mazda MX-5 Miata with the Mishimoto thermostat engineered specifically for the 1.8L 1990–1997 models. Designed for reliable temperature control and improved engine efficiency, this thermostat is a direct-fit replacement that upgrades stock components without modification. Direct fit: Exact compatibility with 1990–1997 Mazda MX-5 Miata 1.8L engines for quick, hassle-free installation. Precision t...