Water Filler Sub-Assembly

About this product

The Water Filler Sub-Assembly (#16502-37040), a key component in Toyota's Radiator & Water Outlet system, plays a pivotal role in the engine's cooling process. During operation, this auto part helps in maintaining the correct level of coolant in the engine, allowing it to perform optimally. The part works in tandem with closely related parts like the radiator and the water pump. Genuine parts are crucial for vehicle compatibility, and the Water Filler Sub-Assembly (#16502-37040) is no exception. Backed by Toyota's genuine parts warranty, it provides trusted and reliable service. However, over time, the part can become clogged or broken. When it loses functionality, the vehicle's engine may run hotter than intended, potentially leading to overheating and serious mechanical damage. By facilitating optimal coolant levels and supporting the efficient operation of the engine, the Water Filler Sub-Assembly (#16502-37040) significantly contributes to the overall safety and efficiency of your Toyota vehicle.