Thermostat Replacement Estimate for Kia Optima

Kia Optima Thermostat Replacement costs $131 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$113 to $189
Labor: $70 -$112
Parts: $43 -$77
Average Dealer price
$178 to 285
Average Shop price
$137 to 213
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CarServiceYourMechanic PriceShop/Dealer Price
2011 Kia OptimaL4-2.0L TurboService typeThermostat ReplacementYourMechanic Price$146.98Shop/Dealer Price$179.55 - $231.53
2001 Kia OptimaV6-2.5LService typeThermostat ReplacementYourMechanic Price$117.31Shop/Dealer Price$143.73 - $190.15
2006 Kia OptimaV6-2.7LService typeThermostat ReplacementYourMechanic Price$145.31Shop/Dealer Price$177.50 - $228.25
2003 Kia OptimaL4-2.4LService typeThermostat ReplacementYourMechanic Price$118.58Shop/Dealer Price$145.29 - $192.65
2002 Kia OptimaL4-2.4LService typeThermostat ReplacementYourMechanic Price$119.50Shop/Dealer Price$146.40 - $194.43
2009 Kia OptimaL4-2.4LService typeThermostat ReplacementYourMechanic Price$118.98Shop/Dealer Price$145.74 - $193.36
2009 Kia OptimaV6-2.7LService typeThermostat ReplacementYourMechanic Price$146.42Shop/Dealer Price$178.98 - $230.64
2004 Kia OptimaL4-2.4LService typeThermostat ReplacementYourMechanic Price$118.58Shop/Dealer Price$145.31 - $192.69
Show example Kia Optima Thermostat Replacement prices
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Parts required for a Kia Optima Thermostat Replacement

Thermostat Gasket
$2 to $5
Thermostat
$13 to $48

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432 reviews
Patrick
22 years of experience
good
2003 KIA OPTIMA - AC IS NOT WORKING INSPECTION
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212 reviews
Enrique
16 years of experience
Quick and thorough!
2001 KIA OPTIMA - IGNITION COIL REPLACEMENT
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129 reviews
Allen
31 years of experience
Showed up on time (a few minutes early) and did a great inspection of the A/C. Described exactly what was going on so that I could understand it!
2001 KIA OPTIMA - AC IS NOT WORKING INSPECTION
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52 reviews
Rusty
18 years of experience
It was a bit hassled with the reps at the center but Rusty took charge it seemed and got the job done for me. Was very polite and kind. And quick.
2008 KIA OPTIMA - THROTTLE BODY REPLACEMENT
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All about Thermostat Replacement

A thermostat is part of the cooling system that regulates the temperature of the coolant in the engine. The thermostat is a metal valve that has a temperature sensor built in. It can either be open or closed. When the thermostat is closed, it keeps the coolant in the engine. When the engine gets to a predetermined temperature, the thermostat opens allowing coolant to circulate. The circulation of coolant prevents the engine from overheating. If the thermostat fails to open, the car will overheat. If the thermostat fails to close, the engine may never reach the optimal temperature (~220F). The thermostat opens and closes many times when the car engine is running. It is the most common component in the cooling system to fail, causing the car to overheat.

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