Radiator Cap Sub-Assembly

About this product

The Radiator Cap Sub-Assembly (#16401-41021), a vital component of Toyota's Radiator & Water Outlet system, plays a crucial role in regulating the pressure within the cooling system. When the engine operates, coolant heats up, and its pressure increases. The cap is designed to allow excess pressure to escape, preventing damage to the radiator, hoses, and water pump. Over time, the Radiator Cap Sub-Assembly (#16401-41021) may show signs of wear and tear, becoming clogged or broken. This can potentially lead to overheating or, in extreme cases, engine failure due to unregulated pressure in the system. Regular replacement of the cap is necessary to avoid such problems. Toyota's genuine Radiator Cap Sub-Assembly (#16401-41021) ensures perfect compatibility with your vehicle, backed by Toyota's genuine parts warranty. Ultimately, regular replacement of this vital part contributes significantly to the overall efficiency and safety of your vehicle's cooling system.