ReviewsGround Electrode Spark Plug

E3 Spark Plugs E3.58 Automotive Spark Plug Pack of 1

  • FOR OPTIMAL PERFORMANCE: Automotive spark plug that fits a variety of applications, designed to increase power, reduce fuel consumption, and improve....
  • PATENTED TECHNOLOGY: DiamondFIRE ground electrode is secured to the shell with 3 legs that help facilitate excellent heat transfer and increase....
  • INCREASED DURABILITY: Designed with colder heat ranges to enable performance modifications, and contains Yttrium-enhanced alloy for up to 8% reduction....
  • WHAT'S INCLUDED: One (1) E3.58 spark plug. Features 14mm thread diameter.
  • 0.750-inch thread reach plug with gasket seat.
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E3 Spark Plugs E3.34 Powersports Spark Plug, Pack of 1

  • FOR HIGH-PERFORMANCE ENGINES: Motorcycle spark plug for a variety of powersport applications, specifically designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions.
  • PATENTED TECHNOLOGY: DiamondFIRE ground electrode is secured to the shell with 2 legs that help facilitate optimal heat transfer and withstand the intense vibration of powersport engine applications.
  • IMPROVED STARTS: Patented Edge-to-Edge design concentrates spark energy, which results in quick and easy starts in any conditions.
  • WHAT'S INCLUDED: One (1) E3.34 spark plug with a 90-day warranty. Features 14mm thread diameter.
  • 0.750-inch thread reach plug with gasket seat.
  • REPLACES: Champion RN9YC, RN11YC, and RN12YC.
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Autolite Small Engine Spark Plug (3924)

  • MAXIMUM PERFORMANCE: Every Copper Spark Plug has a full copper core electrode which provides higher thermal conductivity for better performance in all conditions.
  • IMPROVED DURABILITY: All Autolite spark plugs are Leak proof and come with a heat fused internal seal for long lasting durability.
  • CONSTRUCTION: These replacement spark plugs have a copper-glass seal which bonds the insulator and the terminal post center electrode together.
  • FUEL EFFICIENCY: The Autolite copper automotive replacement spark plug are guaranteed to deliver quick starts, better fuel economy and smooth acceleration.
  • AUTOLITE ADVANTAGE: Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. You can count on our copper plugs for performance and value, backed by decades of experience and passion.
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E3 Spark Plugs E3.70 Automotive Spark Plug, Pack of 1

  • FOR OPTIMAL PERFORMANCE: Automotive spark plug that fits Ford Titan applications, designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions.
  • PATENTED TECHNOLOGY: DiamondFIRE ground electrode is secured to the shell with 3 legs that help facilitate excellent heat transfer and increase turbulence in the cylinder.
  • INCREASED DURABILITY: Designed with colder heat ranges to enable performance modifications, and contains Yttrium-enhanced alloy for up to 8% reduction in side wire temperature for less pre-ignition.
  • WHAT'S INCLUDED: One (1) E3.70 spark plug. Features 16mm thread diameter.
  • 0.860-inch thread reach plug with taper seat.
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E3 Spark Plugs E3.38 Premium Powersports Spark Plug w/ DiamondFIRE Technology (Pack of 1)

  • High performance engine spark plug for a variety of powersport applications, specifically designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions.
  • E3's patented DiamondFIRE edge-to-edge electrode provides maximum performance with increased efficiency, and a faster more complete burn.
  • Proprietary electrode design presents multiple sharp edges to the center electrode providing maximum performance for longer life of this premium spark plug.
  • Includes one (1) E3.38 spark plug with a limited lifetime warranty.
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Autolite 3924 Copper Resistor Automotive Replacement Spark Plugs (4 Pack)

  • MAXIMUM PERFORMANCE: Every Copper Spark Plug has a full copper core electrode which provides higher thermal conductivity for better performance in all conditions.
  • IMPROVED DURABILITY: All Autolite spark plugs are Leak proof and come with a heat fused internal seal for long lasting durability.
  • CONSTRUCTION: These replacement spark plugs have a copper-glass seal which bonds the insulator and the terminal post center electrode together.
  • FUEL EFFICIENCY: The Autolite copper automotive replacement spark plug are guaranteed to deliver quick starts, better fuel economy and smooth acceleration.
  • AUTOLITE ADVANTAGE: Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. You can count on our copper plugs for performance and value, backed by decades of experience and passion.
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Autolite 3924 Copper Resistor Automotive Replacement Spark Plug (1 Pack)

  • MAXIMUM PERFORMANCE: Every Copper Spark Plug has a full copper core electrode which provides higher thermal conductivity for better performance in all conditions.
  • IMPROVED DURABILITY: All Autolite spark plugs are Leak proof and come with a heat fused internal seal for long lasting durability.
  • CONSTRUCTION: These replacement spark plugs have a copper-glass seal which bonds the insulator and the terminal post center electrode together.
  • FUEL EFFICIENCY: The Autolite copper automotive replacement spark plug are guaranteed to deliver quick starts, better fuel economy and smooth acceleration.
  • AUTOLITE ADVANTAGE: Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. You can count on our copper plugs for performance and value, backed by decades of experience and passion.
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Autolite 24 Copper Resistor Automotive Replacement Spark Plugs (4 Pack)

  • MAXIMUM PERFORMANCE: Every Copper Spark Plug has a full copper core electrode which provides higher thermal conductivity for better performance in all conditions.
  • IMPROVED DURABILITY: All Autolite spark plugs are Leak proof and come with a heat fused internal seal for long lasting durability.
  • CONSTRUCTION: These replacement spark plugs have a copper-glass seal which bonds the insulator and the terminal post center electrode together.
  • FUEL EFFICIENCY: The Autolite copper automotive replacement spark plug are guaranteed to deliver quick starts, better fuel economy and smooth acceleration.
  • AUTOLITE ADVANTAGE: Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. You can count on our copper plugs for performance and value, backed by decades of experience and passion.
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E3.54 E3 Premium Automotive Spark Plugs (4 PACK) - 100K miles / 5 years Warranty

  • FOR OPTIMAL PERFORMANCE: Automotive spark plug that fits primarily Ford applications, designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions.
  • PATENTED TECHNOLOGY: DiamondFIRE ground electrode is secured to the shell with 3 legs that help facilitate excellent heat transfer and increase turbulence in the cylinder.
  • INCREASED DURABILITY: Designed with colder heat ranges to enable performance modifications, and contains Yttrium-enhanced alloy for up to 8% reduction in side wire temperature for less pre-ignition.
  • WHAT'S INCLUDED: One (1) E3.72 spark plug. Features 18mm thread diameter.
  • 0.430-inch thread reach plug with taper seat.
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E3 Spark Plugs E3.33 Premium Powersports Spark Plug w/ DiamondFIRE Technology (Pack of 1)

  • High performance engine spark plug for a variety of powersport applications, specifically designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions.
  • E3's patented DiamondFIRE edge-to-edge electrode provides maximum performance with increased efficiency, and a faster more complete burn.
  • Proprietary electrode design presents multiple sharp edges to the center electrode providing maximum performance for longer life of this premium spark plug.
  • Includes one (1) E3.33 spark plug with a limited lifetime warranty.
  • Crosses with Champion RC9YC, RC12YC, RC14YC.
  • and NGK BKR5E11, BKR5ES, BKR6E11, BKR6ES, IFR5L11.
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ACDelco 41-962 Professional Platinum Spark Plug, (8)

  • One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life.
  • Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system.
  • Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance.
  • Some ACDelco GM Original Equipment parts may have formerly appeared as ACDelco Professional.
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