Top Ground Electrode Spark Plug

Autolite Iridium XP Automotive Replacement Spark Plugs, XP104 (4 Pack)

  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today.
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption.
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance.
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs.
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability.
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Bosch Automotive (7424) OE Fine Wire Double Platinum Spark Plug - Single

  • Bosch premium spark plug: manufactured in Europe from one of the leading global automotive suppliers.
  • First-class spark plug technology: based on original equipment and engineered to the specific requirements of the engine.
  • Plugs easy to replace: factory-pre-set electrode gap, no adjustment necessary.
  • Bosch advices not to lubricate the thread. Requested tightening torque or angle see on package.
  • Excellent wear resistance: precious metal alloy at center and ground electrode.
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NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)

  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today.
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption.
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance.
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs.
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability.
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E3 Spark Plugs E3.107 Premium Racing Spark Plug w/ DiamondFIRE Technology (Pack of 1)

  • High performance racing spark plug for a variety of 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.
  • Faster flame propagation initiated by ground electrode results in a more complete burn of the fuel and air mixture for smoother acceleration and idle.
  • Includes one (1) E3.107 spark plug with a limited lifetime warranty.
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Denso (4702) IK20TT Iridium TT Spark Plug, (Pack of 1)

  • Larger spark translates to more power and superior fuel economy.
  • 0.4 mm iridium center electrode, world’s smallest diameter that maximizes firing potential.
  • 0.7 mm needle tip ground electrode, promotes higher spark energy and less heat quenching.
  • DENSO patented 360 degree laser welding process, ensuring exceptional quality bond and structural strength with the iridium center electrode..
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E3 Spark Plugs E3.53 Automotive Spark Plug 1 14mm .708”

  • FOR OPTIMAL PERFORMANCE: Automotive spark plug that fits a variety of domestic applications, designed to increase power, reduce fuel consumption, and....
  • 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) E3.53 spark plug. Features 14mm thread diameter.
  • 0.708-inch thread reach plug with taper seat.
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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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