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The NGK Double Platinum spark plug box of four offers economical dual-platinum technology for longer service life and improved ignitability compared with conventional nickel plugs. Laser-welded platinum surfaces reduce wear for stable idle and better anti-fouling characteristics. High-grade alumina silicate insulators, trivalent metal plating and a copper core support heat transfer and corrosion resistance, making these suitable OE-style replacements.
NGK Double Platinum Spark Plug Box of 4 (PRF6A-11)
