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3590908

HEAD GASKET

This is a cylinder head gasket for Caterpillar 3406E, C15, C16, and C18 heavy-duty diesel engines. It sits between the cylinder head and the engine block, sealing combustion pressure and separating oil and coolant passages. The gasket should be replaced whenever the cylinder head is removed for service, or if there are signs of compression loss, coolant in oil, or overheating. It is built to exact Cat specifications for durability and reliable sealing.