Thermostat Replacement Estimate for Lexus RX300

Lexus RX300 Thermostat Replacement costs $116 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$115 to $125
Labor: $70 -$80
Parts: $45
Average Dealer price
$184
Average Shop price
$140
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CarServiceYourMechanic PriceShop/Dealer Price
1999 Lexus RX300V6-3.0LService typeThermostat ReplacementYourMechanic Price$118.98Shop/Dealer Price$156.64 - $212.43
2003 Lexus RX300V6-3.0LService typeThermostat ReplacementYourMechanic Price$118.07Shop/Dealer Price$155.62 - $210.83
2000 Lexus RX300V6-3.0LService typeThermostat ReplacementYourMechanic Price$118.07Shop/Dealer Price$155.54 - $210.69
2002 Lexus RX300V6-3.0LService typeThermostat ReplacementYourMechanic Price$118.07Shop/Dealer Price$155.58 - $210.75
2001 Lexus RX300V6-3.0LService typeThermostat ReplacementYourMechanic Price$118.98Shop/Dealer Price$156.65 - $212.46
Show example Lexus RX300 Thermostat Replacement prices
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Parts required for a Lexus RX300 Thermostat Replacement

Thermostat Gasket
$4
Thermostat
$14

Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

344 reviews
Robert
26 years of experience
Very nice service. Worth every bucks.
2001 LEXUS RX300 - AIR FUEL RATIO SENSOR REPLACEMENT
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311 reviews
Lucas
12 years of experience
Lucas was incredibly kind and professional. He took time to explain everything to me. I truly appreciate it!
2002 LEXUS RX300 - OIL CHANGE
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236 reviews
Jose
12 years of experience
Jose is fast, efficient, respectful & does a great job. He replaced my parts speedy quick and saved me some money. I will ask for him everytime I need a mechanic from now on. He did a wonderful job. Thank you Jose.
1999 LEXUS RX300 - ALTERNATOR REPLACEMENT
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212 reviews
Enrique
16 years of experience
Awesome guy, great personality.
1999 LEXUS RX300 - INSPECTION / DIAGNOSTICS
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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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