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Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance. Product Features:<ul><li type=disc>0.6 mm finewire design improves ignitability<li type=disc>Patented V-trimmed platinum sidewire technology resists wear<li type=disc>OE equivalent design is engineered for every engine<li type=disc>Designed for better overall durability with virtually no gap erosion<li type=disc>Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.<li type=disc>Designed and Engineered in the USA: Reflects over 100 years of Autolite's engineering experience and expertise.<li type=disc>Gasket Seat Type: Ensures a secure and proper fit for optimal performance.

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Autolite Iridium Ultra Laser Finewire Spark Plugs are one of our brand's most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world. Product Features:<ul><li type=disc>Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.<li type=disc>A laser-welded 0.5mm pure iridium finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.<li type=disc>Nickel-plated shell to resist corrosion.<li type=disc>High-alumina ceramic insulator for increased strength.<li type=disc>Laser welded 0.5mm Iridium finewire center electrode.<li type=disc>Proprietary platinum sidewire technology.

Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance. Product Features:<ul><li type=disc>0.6 mm finewire design improves ignitability<li type=disc>Patented V-trimmed platinum sidewire technology resists wear<li type=disc>OE equivalent design is engineered for every engine<li type=disc>Designed for better overall durability with virtually no gap erosion<li type=disc>Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.<li type=disc>Engineered in the USA: Designed with over 100 years of Autolite engineering experience for superior quality and performance.<li type=disc>Proven Track Record: Part of a legacy with over 11 billion spark plugs sold, showcasing trusted performance and reliability.

Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance. Product Features:<ul><li type=disc>0.6 mm finewire design improves ignitability<li type=disc>Patented V-trimmed platinum sidewire technology resists wear<li type=disc>OE equivalent design is engineered for every engine<li type=disc>Designed for better overall durability with virtually no gap erosion<li type=disc>Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.<li type=disc>Engineered in the USA: Designed with over 100 years of Autolite engineering experience for superior quality and performance.<li type=disc>Proven Track Record: Part of a legacy with over 11 billion spark plugs sold, ensuring trusted performance and reliability.

Spark Plug Install on Toyota Corolla

Spark Plug Install on Honda Civic

Autolite Iridium Ultra Laser Finewire Spark Plugs are one of our brand's most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world. Product Features:<ul><li type=disc>Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.<li type=disc>A laser-welded 0.5mm pure iridium finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.<li type=disc>Nickel-plated shell to resist corrosion.<li type=disc>High-alumina ceramic insulator for increased strength.<li type=disc>Laser welded 0.5mm Iridium finewire center electrode.<li type=disc>Proprietary platinum sidewire technology.<li type=disc>Superior Durability: Autolite Iridium Ultra Laser Finewire Spark Plugs are designed to last longer, providing extended service life compared to standard spark plugs.<li type=disc>OE Fit and Function: Autolite Spark Plugs are the best alternative to original equipment (OE) spark plugs, offering perfect fit, form, and function for all foreign and domestic makes and models.<li type=disc>High-Quality Construction: As a leading supplier of spark plugs globally, Autolite ensures the highest quality ignition products for both the automotive aftermarket and original equipment manufacturers.<li type=disc>Value Pricing: Despite their advanced technology and superior performance, Autolite Iridium Ultra Laser Finewire Spark Plugs are available at a value price, making them an economical choice for vehicle maintenance.

Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance. Product Features:<ul><li type=disc>0.6 mm finewire design improves ignitability<li type=disc>Patented V-trimmed platinum sidewire technology resists wear<li type=disc>OE equivalent design is engineered for every engine<li type=disc>Designed for better overall durability with virtually no gap erosion<li type=disc>Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.<li type=disc>Engineered in the USA: Designed with over 100 years of Autolite's engineering experience for superior quality and performance.<li type=disc>Proven Track Record: Part of a legacy with over 11 billion spark plugs sold, ensuring trusted performance and reliability.

Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance. Product Features:<ul><li type=disc>0.6 mm finewire design improves ignitability<li type=disc>Patented V-trimmed platinum sidewire technology resists wear<li type=disc>OE equivalent design is engineered for every engine<li type=disc>Designed for better overall durability with virtually no gap erosion

Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance. Product Features:<ul><li type=disc>0.6 mm finewire design improves ignitability<li type=disc>Patented V-trimmed platinum sidewire technology resists wear<li type=disc>OE equivalent design is engineered for every engine<li type=disc>Designed for better overall durability with virtually no gap erosion<li type=disc>Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance.<li type=disc>Designed and Engineered in the USA: Reflects over 100 years of Autolite's engineering experience.<li type=disc>Tapered Seat Type: Ensures a secure fit and optimal performance.

Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance. Product Features:<ul><li type=disc>0.6 mm finewire design improves ignitability<li type=disc>Patented V-trimmed platinum sidewire technology resists wear<li type=disc>OE equivalent design is engineered for every engine<li type=disc>Designed for better overall durability with virtually no gap erosion<li type=disc>Double Iridium-Enhanced Alloy Technology Center Electrode: Improves durability and wear resistance for a longer-lasting spark plug.<li type=disc>Engineered in the USA: Designed with over 100 years of Autolite engineering experience for superior quality and performance.<li type=disc>Proven Track Record: Part of a legacy with over 11 billion spark plugs sold, ensuring trusted performance and reliability.

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