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Best Iridium Spark Plugs

Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 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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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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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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Autolite Iridium XP Automotive Replacement Spark Plugs XP3923 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....
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency.....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and....
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement....
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems....
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Autolite Iridium XP Automotive Replacement Spark Plugs XP6203 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....
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency.....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and....
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement....
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems....
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Autolite Iridium XP Automotive Replacement Spark Plugs XP5263 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....
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency.....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and....
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement....
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems....
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Autolite Iridium XP Automotive Replacement Spark Plugs XP5325 Pack of 4

  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine....
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency.....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and....
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement....
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems....
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ACDelco 41-993 Professional Iridium Spark Plug (Pack of 4)

  • Iridium offers better engine idle stability and smoother performance.
  • Iridium allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration.
  • Iridium fine-wire electrode helps improve ignition of the fuel and burns away carbon deposits on the tip of the plug as they form, to help improve fuel economy.
  • One piece suppressor seal blocks radio frequencies that can affect vehicle electronics.
  • Suppressor seal meters spark energy for longer electrode life and seals against combustion leakage. Before installing new spark plugs, use a gap guide to make sure your new spark plugs have the correct gap.
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Champion Iridium 9407 Spark Plug (Carton of 1) - RER8ZWYCB4

  • Champion Iridium - Maximum Performance. Premium Spark Plug.
  • Iridium center electrode delivers maximum life.
  • Fine-wire center electrode and V-trimmed for greater ignitability.
  • V-trimmed ground electrode promotes sharper spark focus.
  • Maintains stable operating temperature under all engine loads.
  • Heat-Active alloy allows electrodes to reach optimal temperature quickly.
  • Champion iridium spark plugs feature a fine wire iridium center electrode that is laser-locked to the center electrode.
  • Every Champion iridium spark plug features a platinum ground electrode to ensure high performance and long life.
  • The fine-wire center electrode and platinum V-trimmed ground electrode produce the sharpest spark focus.
  • This provides the greatest engine performance regardless of the engine type or ignition system.
  • Exclusive heat-active alloy allows the electrodes to reach optimal temperature quickly and maintain stable operating temperature under all engine loads.
  • The Champion iridium spark plug fine-wire center and platinum ground electrode provides the sharpest spark focus for maximum plug performance.
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ENA Set of 6 Iridium Spark Plug and 6 Ignition Coil Pack Compatible with Nissan Infiniti Maxima Murano Pathfinder Quest Altima Q50 QX60 FX35 3.5L V6 Replacement for UF550

  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine....
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency.....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and....
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement....
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems....
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6619 Iridium Spark Plugs LFR6AIX-11 - 6 pcs…

  • OEM number: LFR6AIX-11 #6619 Iridium IX Spark.
  • Extreme performance upgrade via OEM spark plugs and provide a lifetime at 40,000 50,000 miles..
  • Plugs have a fine-wire Iridium center electrode and nickel-alloy terrain electrodes for maximum engine and torque..
  • Designed for fuel-injected and turbo engines..
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CENTAURUS BKR7EIX 2667 Iridium IX Spark Plugs （Pack of 4）

  • 【HIGH QUALITY】CENTAURUS Iridium Spark Plug is made of durable materials, which ensures it can be used for a long time..
  • 【FIT VEHICLE PART 】Fits for Vehicle Specific.Please check the part number before purchasing to ensure fitment..
  • 【EASY INSTALLATION】CENTAURUS 2667 Iridium Spark Plug specifically designed with colder heat ranges than the factory plug to enable performance modifications and handle intense conditions.easy to install, plug and play..
  • 【OPTIMAL PERFORMANCE】CENTAURUS BKR7EIX IX Spark Plugs will work effectively for faster starts, better acceleration..
  • 【PACKAGE & WARRANTY】Package Include 4 Packs BKR7EIX IX 2667 Spark Plugs. We offer a 12 month warranty, If you have any question, we will reply you within 24H..
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NGK Iridium IX Spark Plug LFR6AIX-11 (4 Pack) Compatible With SUBARU LEGACY GT 2005-2006 2.5L/2458cc

  • NGK Iridium Spark Plug Box of 4 (LFR6AIX-11).
  • NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability..
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