Core Sub-Assembly

About this product

Part of the Radiator & Water Outlet system, the Core Sub-Assembly (#16403-11670) plays a crucial role in the engine-fuel operation of your Toyota vehicle. It helps regulate the engine's temperature, preventing overheating and promoting optimal performance. The assembly, consisting of a series of tubes and fins, circulates coolant to absorb the engine's heat before discarding it out to the atmosphere. However, the Core Sub-Assembly (#16403-11670) isn't everlasting and requires periodic replacement. If left unchecked, old or broken Core Assemblies can lead to engine overheating, risking major mechanical damage. Genuine Toyota parts, like our Core Sub-Assembly (#16403-11670), offer optimal compatibility with your vehicle and come with Toyota's genuine parts warranty. This essential auto part, by helping manage engine temperature, contributes significantly to the overall safety and efficiency of your vehicle.
Brand Toyota Genuine
Part Number 16403-11670

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