Cap Assembly

About this product

The Cap Assembly (#SU003-10341), a critical component of Toyota's Engine-Fuel part in the Radiator & Water Outlet system, plays a significant role in maintaining optimal engine temperature. It functions as a pressure valve, ensuring the right amount of coolant flows in and out of the radiator as needed. The cap assembly comprises a main pressure spring and a vacuum valve. As the engine operates, the pressure inside the radiator builds up, compressing the main spring. Once the pressure exceeds the cap's rated pressure, the spring compresses, allowing the coolant to escape into the overflow tank. When the engine cools down, the vacuum valve opens, allowing coolant to flow back into the radiator. Over time, the pressure spring and vacuum valve can wear out, impairing their ability to maintain the correct pressure balance. If left unchecked, this can lead to engine overheating or even severe damage. Replacing the Cap Assembly (#SU003-10341) periodically with genuine Toyota parts not only ensures vehicle compatibility but also comes with Toyota's genuine parts warranty. In conclusion, the Cap Assembly (#SU003-10341) is not just a cap; its function is vital to the engine's overall efficiency and safety, controlling the engine's operating temperature and preventing overheating.
Brand Toyota Genuine
Previous Version(s) SU003-01184
Part Number SU003-10341

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