Autolite XP Iridium Spark Plug XP5703

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite platinum spark plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability. Consider upgrading to Autolite double platinum or iridium XP spark plugs for increased performance. Autolite is an official NASCAR performance partner.

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  OE equivalent design is engineered for every engine
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  Designed for better overall durability with virtually no gap erosion
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  0.6 mm finewire design improves ignitability
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  The official plug of NASCAR
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  Patented V-trimmed platinum sidewire technology resists we