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Thermostat Kit, Gasket, O-ring, Copper/Stainless Steel, 160 Degree, OMC 4.3, 5.0, 5.8, Kit
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Estimated Ship Date from OH, NV: Monday 11/2/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
18-3677
Part Type:
Product Line:
Summit Racing Part Number:
RRA-18-3677
UPC:
808282146351
Opening Temperature Rating (degrees F):
160 degrees F
Thermostat Flow Rate:
Standard-flow
Gaskets Included:
Yes
Thermostat Material:
Copper/Stainless steel
Quantity:
Sold as a kit.
Notes:
Designed to fit OMC 4.3, 5.0, and 5.8 liter engines. Kit includes thermostat, gasket, and o-ring.
Sierra Marine Thermostats
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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Some parts are not legal for use in California or other states with similar laws / regulations
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