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.. 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. NGK standard plugs are constructed for longer life and optimum performance.. 2015 Polaris RZR 900, RZR 570, Ranger 570, Sportsman 570. NGK Copper Core Spark Plug Box of 4 (MR7F). MR7F; sold individually, for box order 10. Corrugated ribs prevent flashover. Copper core aids in heat removal. Triple seals prevent leakage. NGK Standard Spark Plug. Standard Spark Plug. Spark Plug

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