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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!

Top Brands

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.

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!

Top Brands

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.

Showing In Stock Items. Show All 62 Items.

Individual Parts

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Results 1 - 25 of 40

Summit Racing™ Thermostats SUM-359-180

Summit Racing™ Thermostats SUM-359-180

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: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Edelbrock High Performance Thermostats 8604

Edelbrock High Performance Thermostats 8604

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

4.45 out of 5 stars ( 22 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Mr. Gasket High Performance Thermostats 4364

Mr. Gasket High Performance Thermostats 4364

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: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

ACDelco Gold Engine Coolant Thermostats 19474058

ACDelco Gold Engine Coolant Thermostats 19474058

ACDelco Gold Engine Coolant Thermostats 19474058

Thermostat, Mechanical, Gold, High-flow, 207 degrees, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-15-11125G

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Edelbrock High Performance Thermostats 8603

Edelbrock High Performance Thermostats 8603

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: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Mr. Gasket High Performance Thermostats 4363

Mr. Gasket High Performance Thermostats 4363

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: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

ACDelco GM Genuine Parts Engine Coolant Thermostats 97241129

ACDelco GM Genuine Parts Engine Coolant Thermostats 97241129

ACDelco GM Genuine Parts Engine Coolant Thermostats 97241129

Thermostat, Mechanical, OE, 185 degrees, Standard-flow, Each

Part Number: ADO-131-163

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

MotoRad UltraStat Thermostats 5200-180

MotoRad UltraStat Thermostats 5200-180

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: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

ACDelco GM Genuine Parts Engine Coolant Thermostats 89018168

ACDelco GM Genuine Parts Engine Coolant Thermostats 89018168

ACDelco GM Genuine Parts Engine Coolant Thermostats 89018168

Thermostat, Mechanical, OE, 187 degrees, Standard-flow, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, Each

Part Number: ADO-131-160

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

FlowKooler Robertshaw Series High Performance Thermostats 330-195

FlowKooler Robertshaw Series High Performance Thermostats 330-195

FlowKooler Robertshaw Series High Performance Thermostats 330-195

Thermostat, High Flow, 195 Degree F, Copper/Brass, AMC, GM, Chrysler, Ford, Each

Part Number: BRA-330-195

4.14 out of 5 stars ( 28 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

ACDelco GM Genuine Parts Engine Coolant Thermostats 12600171

ACDelco GM Genuine Parts Engine Coolant Thermostats 12600171

ACDelco GM Genuine Parts Engine Coolant Thermostats 12600171

Thermostat, Mechanical, OE, 185 degrees, Standard-flow, Copper/Brass, Each

Part Number: ADO-131-156

3.91 out of 5 stars ( 11 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

MotoRad Fail-Safe Thermostats 7200-180

MotoRad Fail-Safe Thermostats 7200-180

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: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

ACDelco GM Genuine Parts Engine Coolant Thermostats 97241130

ACDelco GM Genuine Parts Engine Coolant Thermostats 97241130

ACDelco GM Genuine Parts Engine Coolant Thermostats 97241130

Thermostat, Mechanical, OE, 180 degrees, Standard-flow, Steel, Chevy, GMC, 6.6L Diesel, Each

Part Number: ADO-131-131

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

MotoRad Fail-Safe Thermostats 7200-160

MotoRad Fail-Safe Thermostats 7200-160

MotoRad Fail-Safe Thermostats 7200-160

Fail-Safe Thermostat-160 Degrees

Part Number: SNN-7200-160

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Mr. Gasket High Performance Thermostats 4365

Mr. Gasket High Performance Thermostats 4365

Mr. Gasket High Performance Thermostats 4365

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

Part Number: MRG-4365

2.63 out of 5 stars ( 16 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

MotoRad Thermostats 300-180

MotoRad Thermostats 300-180

MotoRad Thermostats 300-180

Thermostat, Standard-flow, 180 degrees F, Copper/Brass, AMC, Buick, Cadillac, Chevy, Dodge, Ford, GMC, Jeep, Mercury, Olds, Plymouth, Pontiac, Each

Part Number: SNN-300-180

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

ACDelco GM Genuine Parts Engine Coolant Thermostats 12632948

ACDelco GM Genuine Parts Engine Coolant Thermostats 12632948

ACDelco GM Genuine Parts Engine Coolant Thermostats 12632948

Thermostat, Mechanical, OE, 198 degrees, Standard-flow, Cadillac, Chevy, GMC, Oldsmobile, Each

Part Number: ADO-131-151

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

ACDelco Gold Engine Coolant Thermostats 12514334

ACDelco Gold Engine Coolant Thermostats 12514334

ACDelco Gold Engine Coolant Thermostats 12514334

Thermostat, Mechanical, Professional, 195 degrees, Standard-Flow, Each

Part Number: ADO-131-87

4.63 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

MotoRad Thermostats 200-180

MotoRad Thermostats 200-180

MotoRad Thermostats 200-180

Thermostat, 180 Degrees F, Stainless Steel, Each

Part Number: SNN-200-180

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

MotoRad High Flow Thermostats 2000-180

MotoRad High Flow Thermostats 2000-180

MotoRad High Flow Thermostats 2000-180

High Flow Thermostat-180 Degrees

Part Number: SNN-2000-180

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

MotoRad UltraStat Thermostats 5200-160

MotoRad UltraStat Thermostats 5200-160

MotoRad UltraStat Thermostats 5200-160

Thermostat, UltraStat, 160 Degrees F, Stainless Steel, Each

Part Number: SNN-5200-160

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

MotoRad Spec-R Racing Thermostats MRD100

MotoRad Spec-R Racing Thermostats MRD100

MotoRad Spec-R Racing Thermostats MRD100

Thermostat, Spec-R, 160 Degrees F, Stainless Steel/Copper, Universal, Each

Part Number: SNN-MRD100

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Tuff Stuff Performance High-Flow Thermostats 900195

Tuff Stuff Performance High-Flow Thermostats 900195

Tuff Stuff Performance High-Flow Thermostats 900195

Thermostat, High-Flow, 195 Degrees, 56 gph. Flow Rate, Stainless Steel, AMC, Jeep, Ford, GM, Each

Part Number: TFF-900195

3.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

MotoRad High Flow Thermostats 2000-160

MotoRad High Flow Thermostats 2000-160

MotoRad High Flow Thermostats 2000-160

High Flow Thermostat-160 Degrees

Part Number: SNN-2000-160

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

ACDelco GM Genuine Parts Engine Coolant Thermostats 12559575

ACDelco GM Genuine Parts Engine Coolant Thermostats 12559575

ACDelco GM Genuine Parts Engine Coolant Thermostats 12559575

Thermostat, Mechanical, OE, 195 degrees, Standard-flow, Each

Part Number: ADO-131-121

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

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