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Sierra Marine Thermostats

5.0 out of 5 stars 5 Customer Reviews

Sierra Marine thermostats are exact replacements made of the same high-quality materials as your factory original to provide accurate fit and function for reliable performance. They are available in a wide range of make/model and engine applications—order the thermostat model suited to your needs.

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Sierra Marine Thermostats 18-3540

Sierra Marine Thermostats 18-3540

Sierra Marine Thermostats 18-3540

Thermostat, Outboard, Yamaha, Each

Part Number: RRA-18-3540

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Sierra Marine Thermostats 18-3632

Sierra Marine Thermostats 18-3632

Sierra Marine Thermostats 18-3632

Thermostat, Outboard, Yamaha, Each

Part Number: RRA-18-3632

Not Yet Reviewed

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Sierra Marine Thermostats 18-3660

Sierra Marine Thermostats 18-3660

Sierra Marine Thermostats 18-3660

Thermostat, 170 Degrees Opening Temperature, Volvo Penta, Each

Part Number: RRA-18-3660

Not Yet Reviewed

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Sierra Marine Thermostats 18-3541

Sierra Marine Thermostats 18-3541

Sierra Marine Thermostats 18-3541

Thermostat, Outboard, Yamaha, Each

Part Number: RRA-18-3541

Not Yet Reviewed

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This is a custom order part. You can order this part by Contacting Us.