Thermostat Replacement Estimate for Lexus GS400

Lexus GS400 Thermostat Replacement costs $122 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$122 to $132
Labor: $70 -$80
Parts: $52
Average Dealer price
$196
Average Shop price
$148
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CarServiceYourMechanic PriceShop/Dealer Price
1998 Lexus GS400V8-4.0LService typeThermostat ReplacementYourMechanic Price$125.73Shop/Dealer Price$165.07 - $225.92
1999 Lexus GS400V8-4.0LService typeThermostat ReplacementYourMechanic Price$124.69Shop/Dealer Price$163.90 - $224.07
2000 Lexus GS400V8-4.0LService typeThermostat ReplacementYourMechanic Price$124.69Shop/Dealer Price$163.82 - $223.93
Show example Lexus GS400 Thermostat Replacement prices
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Parts required for a Lexus GS400 Thermostat Replacement

Thermostat Gasket
$9
Thermostat
$16

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Real customer reviews from Lexus owners like you.

178 reviews
Chris
11 years of experience
Chris is by far one of the best and honest mechanics I've ever dealt with. My car is older and rusted so the amount of time he spent to do the work and explain what he did was awesome. I highly recommend Chris and his services!!!
2002 LEXUS IS300 - ABS LIGHT IS ON INSPECTION
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145 reviews
James
26 years of experience
Knowledgeable, soft spoken, very clean job, Amazing human being, Highly Recommended.
2004 LEXUS LS430 - OIL CHANGE
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132 reviews
Rodney
31 years of experience
Rodney was professional, on time and very thorough. He pointed out other concerns that he noticed while he was doing his assigned tasks. Rodney took the time to explain the procedures, what was needed and how to view his online report.
2001 LEXUS LS430 - TIRE ROTATION
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46 reviews
David
11 years of experience
He checked all things possible and found out it was timing thanks
1992 LEXUS LS400 - CHECK ENGINE LIGHT IS ON INSPECTION
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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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