Mechanical Car Thermostats

It’s simple: a mechanical car thermostat opens when your engine gets too hot, letting coolant flow, and then it closes when the temperature is just right. Summit...

It’s simple: a mechanical car thermostat opens when your engine gets too hot, letting coolant flow, and then it closes when the temperature is just right. Summit Racing Equipment is your ultimate source for mechanical thermostats, with applications for every engine size and opening temperature you would ever need!

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When the heat is on, equip your car or truck with a high-quality thermostat. Shop for stock car thermostat replacements and high-performance upgrades from manufacturers like Meziere, Stant, Vintage Air, ACDelco, Dorman, FlowKooler, JET Performance, Motorcraft, and many more.

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Part Groups

Results 1 - 11 of 11

Aisin Thermostats THF-002

Thermostats, Mechanical, OE Replacement, 172 Degrees F, Subaru, Saab, Each

Part Number: ASN-THF-002

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Beck/Arnley Coolant Thermostats 143-0855

Thermostat, 172 Degree, Standard-Flow, Copper/Brass, for use on Honda®, Acura, Each

Part Number: BCK-143-0855

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Beck/Arnley Coolant Thermostats for 2016-2020 MDX, 2018-2020 RLX, 2015-2020 TLX - 143-0944

Thermostat, 172 Degree, Standard-Flow, Copper/Brass, for use on Acura®, Each

Part Number: BCK-143-0944

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

MotoRad Fail-Safe Thermostats 7206-180

Thermostat, Mechanical, Fail-Safe Thermostat, Standard-flow, 180 degrees F, Stainless, AMC, Buick, Cadillac, Chevy, Chrysler, Ford, GMC, Mercury, Each

Part Number: SNN-7206-180

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today