NGK Standard spark plugs (in the iconic NGK 'yellow box' packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties. NGK Standard spark plugs are proven technology that offer reliable performance. Actual OE or equivalent replacement spark plug. NGK Standard plugs are treated with corrosion-resistant plating to ensure ease of installation and removal. O/B - 1971-1967 MERCURY

TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
Pure alumina silicate ceramic insulator provides superior strength and better heat transfer
Trivalent metal plating for superior anti-corrosion and anti-seizing properties
Corrugated ribs prevent flashover
Copper core aids in heat removal
Triple seals prevent leakage

NGK Standard Spark Plug Part Number 2422, supplied in the iconic yellow packaging, offers dependable OE-grade performance designed specifically for Mercury models from 1967 to 1971. These spark plugs are engineered to meet the exact specifications of original equipment, ensuring seamless compatibility and consistent ignition performance. Crafted with high-quality nickel alloy, they deliver durability and reliable operation across a wide range of engine conditions. The use of a solid copper core enhances heat dissipation and electrical conductivity, promoting optimal engine performance and efficiency. With a focus on longevity, these plugs feature corrosion-resistant trivalent metal plating that protects against rust and seizing, simplifying installation and removal procedures. The advanced alumina silicate ceramic insulator provides increased strength and superior heat transfer, while triple gasket seals prevent combustion gases from leaking, ensuring the engine runs smoothly and efficiently. Designed for easy installation, these spark plugs incorporate corrugated ribs to prevent flashover, making them a dependable choice for both professional mechanics and DIY enthusiasts alike. Each box contains ten units, making them suitable for comprehensive engine maintenance or replacement tasks. Whether restoring vintage Mercury engines or maintaining modern applications requiring OE-quality spark plugs, NGK’s legendary technology ensures consistent performance, durability, and ease of use, backed by decades of automotive expertise.

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