Help protect your Mazda6's engine from overheating with a functional cooling system. Your Mazda6's thermostat is a heat sensitive valve that regulates the flow of coolant through the engine to keep the engine running at an optimal temperature. The O-ring is a gasket that prevents coolant from seeping past the thermostat inside the housing.
Protects your Mazda6's engine from overheating
High quality OEM Thermostat O-Ring
O-Ring prevents coolant from seeping past the thermostat