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Spark Plug Reach (in.)
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Spark Plug Reach (mm)
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Electrode Core Material
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Motorcraft Iridium Spark Plugs

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Switch to Motorcraft iridium spark plugs and notice a difference in power and fuel economy, along with a smooth, quiet idle. Iridium is six times harder, eight times stronger, and has a melting point much higher than platinum. These plugs have a nickel plated shell for corrosion resistance and improved appearance. Free your engine from the plague of carbon deposits—install Motorcraft products for smooth, responsive performance.

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