Thermostat
The engine coolant thermostat plays a vital role in regulating engine temperature. Located within the engine coolant thermostat housing, when closed, it blocks coolant from circulating between the engine and radiator. As the engine warms up and coolant temperature rises, the thermostat opens at its rated temperature, allowing movement of hot fluid to the radiator, where it cools. Once the temperature comes back down, the thermostat closes, allowing the coolant to warm back up. This process continues in a cycle, with the coolant temperature ideally equal to the thermostat rating (for example, 180 degrees).
When selecting a stock replacement thermostat, it is important to confirm the year, make, model, and engine in your vehicle. For custom and performance engine applications, select the correct size for your engine as well as the temperature. Ideally, the thermostat temperature for most engines is between 180-195 degrees Fahrenheit. If your engine is running hot, using a lower temperature thermostat will not resolve the issue. Even though the thermostat will open sooner, the coolant will continue to heat up and the thermostat will not close, resulting in the same overheating condition from a different cause.
JEGS offers a large thermostat selection from the best vendors in the automotive aftermarket, including ACDelco, Clevite MAHLE, Gates, Mishimoto, JEGS, and many more. Each thermostat is made from high quality components and assembly to provide long-lasting cooling performance for your engine.
