A special thread and shell coating ensures quick and easy removal from aluminum heads and resists corrosion.
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Gold palladium insert extends life and improves resistance to corrosion
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Tapered tip provides better spark exposure to air/fuel mixture and allows the mixture to flow more easily through gap area for maximum combustibility
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Fouling resistance is improved with smaller diameter center electrode wire and insulator tip
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Copper-cored ground electrode runs cooler for extended life
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Anti-seize coating on threads
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Each sold separately
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5R6AG