Looking for aftermarket parts to modify or upgrade your 2003 Mazda Miata with thermostats? At Tunersports.com we carry a huge selection of the top name brand performance thermostat parts and accessories for your Miata.
Whether you have a 2003 Mazda Miata in Base to Shinsen trim we have you covered. We have 3 thermostats available to mod your Miata. All parts have free shipping to the Continental US 48 States.
 OUT OF STOCK 33488Gates 90-05 Mazda MX-5 Miata / 71-85 Toyota Celica Thermostat - 180 Degree 2001-2003 Mazda Miata SE 2001-2004 Mazda Miata Base / LS 2003-2003 Mazda Miata Shinsen $31.76 |
 OUT OF STOCK 33489Gates 90-05 Mazda MX-5 Miata / 71-85 Toyota Celica Thermostat - 195 Degree 2001-2003 Mazda Miata SE 2001-2004 Mazda Miata Base / LS 2003-2003 Mazda Miata Shinsen $32.57 |
 IN STOCK MMTS-MIA-99The Mishimoto racing thermostat for the 99-05 Mazda Miata NB will promote greater cooling efficiency in your stock or modified Miata. Once the engine is fully warmed up, Mishimoto's Miata NB racing thermostat will open at a lower temperature than standard thermostats. This allows coolant to flow thr... Mishimoto 99-05 Mazda Miata NB 177 Degree Racing Thermostat 1999-2005 Mazda Miata Base 2000-2003 Mazda Miata SE 2000-2005 Mazda Miata LS 2003-2003 Mazda Miata Shinsen $73.73 |