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A radiator cap is a high pressure cap located at the top of the radiator. It provides protection to engine components by preventing heated coolant vapor to spread in the engine bay that may cause damage or prevent them from operating properly. It also reduces the rate of evaporation of the fluid poured in the radiator to extend the cooling performance of the radiator. A broken radiator cap will allow hot vapor to escape into the engine bay that may cause damage to engine components. Auto Parts Network carries reliable parts that will keep your vehicle in top condition.
