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A core plug, often used in automotive and industrial applications, is a small but critical component designed to seal and close the holes in an engine block or other machinery after casting. These plugs help maintain the integrity and pressure of the engine by preventing coolant or oil leaks. Typically made from materials such as steel, brass, or aluminum, core plugs are installed into pre-drilled holes in the engine block or machinery and are often secured with a press fit or adhesive. Their proper installation is essential for engine performance and longevity, as they ensure that the engine operates smoothly and efficiently without the risk of fluid loss or contamination.
