Reserve Tank Cap

About this product

The Reserve Tank Cap (#16475-WAA02), an integral part of Toyota's Radiator & Water Outlet system, plays a pivotal role in maintaining the engine's operational efficiency. This engine-fuel part functions by securing the coolant reserve tank, thereby preventing coolant leaks and ensuring optimal system pressure. Its mechanism is simple yet vital - if the cap becomes aged or damaged, coolant may leak or evaporate, leading to an overheated engine, potential system damage, or even a breakdown. Therefore, periodic replacement of the Reserve Tank Cap (#16475-WAA02) is crucial for maintaining the system's integrity. A genuine Toyota Reserve Tank Cap (#16475-WAA02) offers excellent vehicle compatibility and is backed by Toyota's genuine parts warranty. By maintaining optimal system pressure and coolant levels, this cap contributes significantly to the overall efficiency and safety of the engine cooling system.