View our Specials! Coupon Code: SaveIn2026
Looking for aftermarket parts to modify or upgrade your Kia Optima with thermostats? At Tunersports.com we carry a huge selection of the top name brand performance thermostat parts and accessories.
 IN STOCK 33661Gates 98-13 Toyota Corolla 1.8L Thermostat Seal 2009-2015 Kia Optima EX / LX / SX 2013-2013 Kia Optima SXL $27.54 |
 OUT OF STOCK 33877Gates 97-99 Acura CL / 91-96 Dodge Stealth / 95-99 Honda Accord / 91-99 Mitsu 3000GT Thermostat 2001-2003 Kia Optima SE 2001-2006 Kia Optima LX 2004-2006 Kia Optima EX $58.89 |
 OUT OF STOCK 33878Gates 03-08 Infiniti FX45 / 06-10 M45 / 05-06 Q45 180 Deg Thermostat 2001-2003 Kia Optima SE 2001-2010 Kia Optima LX 2004-2010 Kia Optima EX 2009-2010 Kia Optima SX $48.36 |
 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 2001-2003 Kia Optima SE 2001-2010 Kia Optima LX 2004-2010 Kia Optima EX 2009-2010 Kia Optima SX $86.84 |