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The NGK Standard spark plug offers proven OE-style reliability in familiar packaging. Its alumina silicate ceramic insulator provides strong dielectric performance while the 98% pure copper core improves heat dissipation and conductivity. Triple gasket sealing stops combustion gas leaks and trivalent metal plating reduces corrosion and seizing for easier servicing. Corrugated ribs minimize flashover to maintain consistent ignition and longer service life.
NGK Standard Spark Plug Box of 10 (CR4HSA)
