Reserve Tank Cap Sub-Assembly

About this product

The Reserve Tank Cap Sub-Assembly (#16405-0D030), a key component of the Radiator & Water Outlet system in the Engine-Fuel category, is primarily responsible for maintaining the pressure balance within the cooling system. As the engine runs, the assembly cap ensures that the coolant does not overflow or evaporate, keeping the engine temperature steady. A worn-out or damaged cap can result in coolant leakage, overheating, and potentially severe engine damage. Therefore, consistent replacement of this part is imperative for the engine's longevity. Genuine Toyota parts are recommended for compatibility with your vehicle and are supported by Toyota's genuine parts warranty. This auto part greatly contributes to the overall efficiency of the cooling system, leading to better engine performance and safety while driving.
Brand Toyota Genuine
Part Number 16405-0D030

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