Description
The head gasket is a critical component that seals the engine block and cylinder head, keeping oil and coolant separate while maintaining compression and preventing leaks. Without it, engines risk overheating, power loss, and severe damage. Modern vehicles rely on Multi-Layer Steel (MLS) gaskets, which feature multiple coated steel layers that deliver superior sealing, durability, and adaptability to high pressures and temperatures—making them ideal for high-performance and aluminum-head engines. Copper gaskets, while less common, remain popular in racing applications thanks to their excellent heat conductivity, tight sealing, and reusability. For older or budget vehicles, composite and paper gaskets offer a cost-effective option with good conformability and easy installation. Each type—MLS, copper, composite, or paper—has unique strengths suited to specific applications. By understanding these options, counter professionals can guide customers to the best gasket for their engine’s needs, ensuring reliable performance and long-lasting protection.