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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Showing In Stock Items. Show All 144 Items.

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Results 1 - 25 of 64

EMP Stewart High Performance Thermostats 301

Thermostat, 180 Degree, High-Flow, Copper/Steel, 3 Bypass Holes, Each

Part Number: EMP-301

4.81 out of 5 stars ( 101 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Thermostats SUM-359-180

Thermostat, 180 Degree, High-Flow, Bypass Valve, Copper/Brass, Stainless Body, Each

Part Number: SUM-359-180

4.44 out of 5 stars ( 142 )

Estimated Ship Date: Tomorrow

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EMP Stewart High Performance Thermostats 300

Thermostat, 160 Degree, High-Flow, Copper/Steel, 3 Bypass Holes, Each

Part Number: EMP-300

4.56 out of 5 stars ( 52 )

Estimated Ship Date: Tomorrow

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EMP Stewart High Performance Thermostats 305

Thermostat, 180 Degree, High-Flow, Copper/Steel, Chrysler, Ford, Each

Part Number: EMP-305

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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EMP Stewart High Performance Thermostats 307

Thermostat, 160 Degree, High-Flow, Copper/Steel, Each

Part Number: EMP-307

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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EMP Stewart High Performance Thermostats 302

Thermostat, 195 Degree, High-Flow, Copper/Steel, 3 Bypass Holes, Each

Part Number: EMP-302

4.1 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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EMP Stewart High Performance Thermostats 304

Thermostat, 160 Degree, Each

Part Number: EMP-304

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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EMP Stewart High Performance Thermostats 309

Thermostat, 195 Degree, High-Flow, Copper/Steel, Each

Part Number: EMP-309

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

EMP Stewart High Performance Thermostats 306

Thermostat, 195 degree, High-flow, Chrysler, Dodge, Ford, Plymouth, Each

Part Number: EMP-306

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Summit Racing™ Thermostats SUM-359-160

Thermostat, 160 Degree, High-Flow, Bypass Valve, Copper/Brass, Stainless Body, Each

Part Number: SUM-359-160

4.38 out of 5 stars ( 78 )

Estimated Ship Date: Tomorrow

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Edelbrock High Performance Thermostats 8604

Thermostat, High Performance, Mechanical, 53mm Outside Diameter, 180 degrees, High-flow, AMC, Buick, Cadillac, Chrysler, Ford, Hudson, Each

Part Number: EDL-8604

4.43 out of 5 stars ( 21 )

Estimated Ship Date: Tomorrow

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Mr. Gasket High Performance Thermostats 4364

Thermostat, 180 Degree, High-Flow, Copper/Brass, Each

Part Number: MRG-4364

4.11 out of 5 stars ( 114 )

Estimated Ship Date: Tomorrow

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FlowKooler Robertshaw Series High Performance Thermostats 330-160

Thermostat, High Flow, 160 Degree F, Copper/Brass, AMC, GM, Chrysler, Ford, Each

Part Number: BRA-330-160

4.79 out of 5 stars ( 77 )

Estimated Ship Date: Tomorrow

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Edelbrock High Performance Thermostats 8603

Thermostat, High Performance, Mechanical, 53mm Outside Diameter, 160 degrees, High-flow, AMC, Buick, Cadillac, Chrysler, Ford, Hudson, Each

Part Number: EDL-8603

4.56 out of 5 stars ( 16 )

Estimated Ship Date: Tomorrow

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Mr. Gasket High Performance Thermostats 4366

Thermostat, 160 Degree, High-Flow, Chrysler, Dodge, Plymouth, V8, Each

Part Number: MRG-4366

4.9 out of 5 stars ( 20 )

Estimated Ship Date: Tomorrow

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FlowKooler Robertshaw Series High Performance Thermostats 330-180

Thermostat, High-Flow, 180 Degree F, Copper/Brass, Each

Part Number: BRA-330-180

4.58 out of 5 stars ( 33 )

Estimated Ship Date: Tomorrow

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Mr. Gasket High Performance Thermostats 4363

Thermostat, 160 Degree, High-Flow, Copper/Brass, Each

Part Number: MRG-4363

4.03 out of 5 stars ( 63 )

Estimated Ship Date: Tomorrow

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Mr. Gasket High Performance Thermostats 4367

Thermostat, 180 Degree, High-Flow, Chrysler, Dodge, Plymouth, V8, Each

Part Number: MRG-4367

3.35 out of 5 stars ( 23 )

Estimated Ship Date: Tomorrow

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MotoRad UltraStat Thermostats 5200-180

Thermostat, UltraStat, 180 Degrees F, Stainless Steel, Each

Part Number: SNN-5200-180

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Edelbrock High Performance Thermostats 8605

Thermostat, High Performance, Mechanical, 53mm Outside Diameter, 195 degrees, High-flow, AMC, Buick, Cadillac, Chrysler, Ford, Hudson, Each

Part Number: EDL-8605

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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MotoRad Thermostats with Seal 456-160

Thermostat, with Seal, 160 Degrees F, Stainless Steel, Each

Part Number: SNN-456-160

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Tuff Stuff Performance High-Flow Thermostats 900180

Thermostats, Mechanical, High-Flow, 180 degrees, Copper/Steel, AMC, Cadillac, Chevy, Dodge, Ford, GMC, Jaguar, Kaiser, MG, Rover, Saab, Triumph, Each

Part Number: TFF-900180

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

MotoRad Fail-Safe Thermostats 7200-180

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

Part Number: SNN-7200-180

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Chevrolet Performance Thermostats 10202456

Thermostat, 180 Degree, Standard-Flow, Copper, Stainless Steel, Chevy, Small Block, Each

Part Number: NAL-10202456

4.3 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Summit Racing™ Thermostats SUM-359-195

Thermostat, 195 Degree, High-Flow, Bypass Valve, Copper/Brass, Stainless Body, Each

Part Number: SUM-359-195

4.0 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

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