Looking for aftermarket parts to modify or upgrade your 2004 Kia Optima with thermostats? At Tunersports.com we carry a huge selection of the top name brand performance thermostat parts and accessories for your Optima.
Whether you have a 2004 Kia Optima in EX to LX trim we have you covered. We have 3 thermostats available to mod your Optima. All parts have free shipping to the Continental US 48 States.
 IN STOCK - LOW 33877Gates 97-99 Acura CL / 91-96 Dodge Stealth / 95-99 Honda Accord / 91-99 Mitsu 3000GT Thermostat 2001-2006 Kia Optima LX 2004-2006 Kia Optima EX $49.16 |
 OUT OF STOCK 33878Gates 03-08 Infiniti FX45 / 06-10 M45 / 05-06 Q45 180 Deg Thermostat 2001-2010 Kia Optima LX 2004-2010 Kia Optima EX $39.27 |
 IN STOCK MMTS-S2K-00LThe Mishimoto racing thermostat will promote greater cooling efficiency throughout your engine and significantly lower high engine temperature produced by modified and upgraded turbo applications.Once the engine is fully warmed up the Mishimoto racing thermostat will open up at a lower temperature t... Mishimoto 00-09 Honda S2000 / 93-99 NSX / 91-95 Legend 68 Degree Racing Thermostat 2001-2010 Kia Optima LX 2004-2007 Kia Optima EX $73.73 |