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NGK Iridium Spark Plug Box of 4 LFR6AIX-11 - 6619Find parts that fit my vehicle

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      Product Information

      Description, Q&A

      Description

      NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

      Spark plugs, ignition wires, coil packs, ignition coils, and distributors are all essential parts that affect the performance of your car. Search from your favorite brands like NGK, Edelbrock, MSD Ignition, Bosch, HKS, and AEM Electronics, to give your car the proper ignition it needs.

      Spark plugs are an essential part to keep your car running. It is recommended that your replace your spark plugs every 20,000 to 40,000 miles. If you are looking to increase the power of your car, you may need to get some spark plugs that run a step cooler than OEM.

      With over 80 years of automotive expertise, we are driven by extreme dedication to performance and quality. From OEM to aftermarket, our people push the boundaries of innovation to bring the latest technologies to market under the NGK and NTK brands.

      NGK 6619

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.7

      Reviews of NGK Ignition Products (275)

      Brand Image

      Reviews of NGK Ignition products have an average rating of 4.74 out of 5

      Jul 31, 2025

      Review shared from NGK Laser Iridium Spark Plug Box of 4 ILKR9Q7G - 97312

      1
      2020 Base - JeffreyH

      Not sure what happened here

      Ordered this and received 1 single spark plug. Went through customer service to get the issue resolved and received 1 single spark plug again, and then again. Never did I actually receive a box a four spark plugs.

      Jul 26, 2025

      Review shared from NGK Laser Iridium Spark Plug Box of 4 SILKFR8A6 - 96698

      5
      2022 Wilderness - Micaela

      Nothing but OEM

      Great quality and with spark plugs being so specialized nowadays, I can’t recommend anything but OEM. Great buy.

      Jul 14, 2025

      Review shared from NGK Traditional Spark Plug Box of 4 BKRSES-11 - 2382

      5
      2002 ES - Carlosfigueroa

      Ngk

      Awesome deal I couldn't believe how cheap and good they are

      Jul 7, 2025

      Review shared from NGK Iridium Spark Plug Box of 4 BKR6EIX-11 - 3764

      5
      2002 WRX - AIMPerformance

      perfect fit

      worked perfectly in a 99 Ej22! Correct part and cheaper price through Throtl if you don't mind waiting a bit

      Jul 3, 2025

      Review shared from NGK G-Power Spark Plug ZFR6BGP-S - 92213

      5
      2004 LX - Matt

      Great Plugs

      These NGK plugs are a vast improvement over the stock plugs in my 2004 Honda CRV. I was noticing a bit of a low idle before installation, which was fixed after installing these plugs.

      Jun 30, 2025

      Review shared from NGK Laser Iridium Spark Plug Box of 4 ILKR9Q7G - 97312

      5
      2013 SXL - bruski83

      A better/cheaper option

      If you are thinking you need the hks45, think again!. these last longer, and are much cheaper. with the same specs & heat range.

      Apr 6, 2021

      Review shared from NGK Laser Iridium Spark Plug (12-18 3.6L Jeep Wrangler JK)

      5
      Sparkplugs

      bang for your buck

      This product performs well enough to compliment this product.

      Apr 2, 2021

      Review shared from NGK G-Power Platinum Spark Plugs (Mid 08-10 GT)

      5
      2010 GT - KellyWiggy1234

      Nice plugs

      These plugs (as usual with NGK) are of good quality, and are great for stock replacements. My 2010 runs much better now and another bonus is the increaed throttle response.

      Mar 17, 2021

      Review shared from NGK V-Power Spark Plug (03-08 5.7L RAM 1500)

      5
      2005 SLT - Rffhbjkk

      NGK

      I needed a tune up on my new truck that i just got so I always go with NGK spark plugs love the way they make my cars run...

      Feb 13, 2021

      Review shared from NGK V-Power Performance Spark Plugs (93-01 Cobra; 96-04 GT, Mach 1; 98-04 V6)

      5
      2016 GT - TexasStang

      Great addition

      We put these on a 99 V6 mustang (auto) with 94k miles. It has a little more pep now. I did not think it would make that much of a difference. Check out our channel Mustangdriven to check out the final product.

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