coolant thermostat

The coolant thermostat is a key component in the engine cooling system, ensuring that the engine quickly reaches its optimal operating temperature and maintains it at that temperature. It controls the coolant flow between the engine and radiator based on the current engine temperature.

Inside the thermostat is a temperature-dependent wax element. Once the coolant reaches a certain temperature, the wax expands and opens a valve. This allows the coolant to flow through the radiator and dissipate excess heat. When the engine is cold, the valve remains closed, allowing the engine to reach operating temperature more quickly.

A faulty coolant thermostat can cause the engine to either overheat or not get warm enough. If the thermostat remains permanently closed, the engine can overheat. If it remains open, the engine may not reach its optimal operating temperature, which can lead to increased fuel consumption and accelerated wear.

At Autoteile Gossau, you'll find coolant thermostats in original equipment and high-quality aftermarket versions for numerous vehicle makes and models. Benefit from the lowest prices in Switzerland, fast delivery, or pick up your order directly from our store in Gossau and pay conveniently by cash or card.