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Autolite XP Iridium Spark Plug XP5503Shop All Autolite
Iridium enhanced, protects against electrode wear. 0.6mm fine wire electrode; designed for better overall ignitability performance. More focused ignition for better/faster fuel combustion. V trimmed patented platinum sidewire, resists wear. Nickel plated shell, prevents corrosion. OE equivalent design guaranteed to deliver quick starts, good fuel economy and smooth acceleration.