Top Autolite Iridium Spark Plugs

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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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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Autolite Platinum AP3924 Automotive Replacement Spark Plugs (4 Pack)

  • MAXIMUM PERFORMANCE: Every Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration..
  • IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer.
  • CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life.
  • FUEL EFFICIENCY: The Autolite Platinum automotive replacement spark plug works to optimize engine performance for a longer life and improved fuel economy..
  • 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 plugs needs.
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E3.56 E3 Premium Automotive Spark Plugs 6-PACK

  • MAXIMUM PERFORMANCE: Every Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and....
  • IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode....
  • CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion....
  • FUEL EFFICIENCY: The Autolite Platinum automotive replacement spark plug works to optimize engine performance for a longer life and improved fuel....
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement....
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2Pcs CNPAPC Upgrade Double Iridium IX Spark Plugs DCPR7EIX #3144#6046#97637 for 1999-2016 Harley Davidson Twin Cam…

  • 【SUPER POWER】Double Iridium IX Spark Plugs are designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response. Double iridium is the best spark plug material.
  • 【MORE FUEL EFFICIENT】The flameout phenomenon rarely occurs when using double iridium spark plugs,The engine can also be kept in good running condition, resulting in lower fuel consumption. So it is really necessary to replace the good double iridium spark plugs..
  • 【LONGER LIFE】The fine Double Iridium tip ensures high durability and a consistently stable spark. Double Iridium alloy has extremely high melting point, perfect for today's high-tech, high-performance engines. Trivalent Metal Plating - Outstanding acceleration, long life ,high fuel efficiency and durability. Ultimate design, technology and performance..
  • 【COMPATIBLE MODELS】DCPR7EIX #3144 Replacement racing spark plug used by many professional car drivers and fit for 2000 Dyna Super Glide；1999-2016 Harley Davidson Twin Cam；XL Sportster 883/1200 1986-present.
  • If it has the same parameters as this product,....
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Autolite APP3924 Double Platinum Automotive Replacement Spark Plugs (4 Pack)

  • MAXIMUM PERFORMANCE: Every Double Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration. Full copper core electrode provides better performance in all conditions.
  • IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer.
  • CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life.
  • high nickel alloy side electrode maintains precise gap.
  • 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 plugs needs.
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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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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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