The Radiator Coolant Tank, also known as a coolant reservoir or overflow tank, is a part of the cooling system. It holds an excess of coolant that expands and overflows from the radiator when the engine reaches high operating temperatures. Once the engine cools down, the tank returns the coolant to the radiator through a vacuum action, maintaining a consistent coolant level.Attributes:• Stores overflow coolant from the radiator during thermal expansion.• Returns coolant to the radiator when it contracts upon cooling.• Allows easy coolant level monitoring and refilling.Applications: The Radiator Coolant Tank is mounted near the radiator or on the side of the engine compartment. The coolant tank is connected to the radiator overflow outlet and is easily accessible for monitoring and refilling.