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Beck/Arnley Coolant Thermostats

4.09 out of 5 stars 11 Customer Reviews

You always get high-quality replacement parts from Beck/Arnley. Their self-cleaning engine coolant thermostats are constructed from high-quality stainless steel and copper to prevent corrosion and have long-stroke capabilities to provide maximum cooling. They allow your engine to reach operating temperature quickly to reduce oil dilution, fuel consumption, and exhaust emissions. Improve the overall efficiency of your heating system with Beck/Arnley coolant thermostats.

Showing In Stock Items. Show All 20 Items.

Results 1 - 18 of 18

Beck/Arnley Coolant Thermostats for 1969-1992 LAND CRUISER - 143-0657

Thermostat, Replacement, 180 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0657

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0689

Thermostat, Replacement, 180 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0689

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0687

Thermostat, Standard Flow, Copper, Stainless Steel, 160 Degrees, Each

Part Number: BCK-143-0687

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0688

Thermostat, Replacement, 192 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0688

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0354

Thermostat, Replacement, 192 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0354

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0640

Thermostat, Replacement, 180 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0640

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0641

Thermostat, Replacement, 192 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0641

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0545

Thermostat, Replacement, 192 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0545

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0081

Thermostat, Standard Flow, 180 Degrees, Each

Part Number: BCK-143-0081

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0149

Thermostat, Replacement, 180 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0149

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0684

Thermostat, Replacement, 160 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0684

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0686

Thermostat, Replacement, 192 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0686

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0131

Thermostat, Replacement, 160 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0131

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0636

Thermostat, Replacement, 195 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0636

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0602

Thermostat, Replacement, 180 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0602

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0412

Thermostat, Copper, Stainless Steel, Standard Flow, 167 Degrees, Each

Part Number: BCK-143-0412

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0685

Thermostat, Standard Flow, Copper, Stainless Steel, 180 Degrees, Each

Part Number: BCK-143-0685

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Beck/Arnley Coolant Thermostats 143-0706

Thermostat, Replacement, 160 Degree, Standard-Flow, Copper, Stainless Steel, Each

Part Number: BCK-143-0706

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

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