CYLINDER BLOCK PLUGS
Expansion plugs that seal casting holes in the block and protect against internal pressure or freezing damage.
Top Cylinder block plugs
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Cylinder block plugs for Top Car Brands
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Learn More About Cylinder block plugs
Cylinder block plugs, commonly known as freeze or core plugs, seal the expansion holes created during the engine block casting process. They are designed to pop out if the engine coolant freezes, preventing the block from cracking. Over time, internal corrosion can cause these plugs to leak, leading to coolant loss and potential engine overheating if they are not replaced.