NGK Iridium IX Spark Plugs

NGK spark plugs and DENSO spark plugs, plus those from Autolite, Bosch, and Champion, help maximize engine power and operating performance ride after ride. We carry thousands of spark plugs for everything from Chevy to Ford, Volkswagen to Toyota, all with a 100% fitment guarantee. Browse popular spark plugs including NGK Iridium, NGK Racing, NGK G-Power, and many more replacement spark plugs. Our top-grade Spark Plugs are the key to igniting your ride. Ensure they’re well protected in the Cylinder Head and properly connected via the Coil Boots when replacing them.

NGK spark plugs and DENSO spark plugs, plus those from Autolite, Bosch, and Champion, help maximize engine power and operating performance ride after ride. We carry thousands of spark plugs for everything from Chevy to Ford, Volkswagen to Toyota, all with a 100% fitment guarantee. Browse popular spark plugs including NGK Iridium, NGK Racing, NGK G-Power, and many more replacement spark plugs. Ensure they’re well protected in the Cylinder Head and properly connected via the Coil Boots when replacing them.

Click to Learn MoreClick to Learn More
Select Your Vehicle

Filter By Part Details
View as Grid List

Items 193-240 of 4765

Set Ascending Direction
  1. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 2006-2011 Kia Rio 1.6L L4
    Special Price $35.94 Regular Price $50.99
  2. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 2013-2018 Ford Fusion 2.0L L4
    Rating:
    100%
    Special Price $36.68 Regular Price $51.99
  3. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2016-2020 Honda Civic 2.0L L4
    Special Price $36.83 Regular Price $52.99
  4. NGK Spark Plug
    6 pc NGK Iridium IX 94553 ZFR5AIX-11 Spark Plugs
    Special Price $46.45 Regular Price $47.40
  5. NGK Iridium IX
    6 pc NGK Iridium IX Spark Plugs for 1995-2004 Toyota Tacoma 3.4L V6
    Rating:
    100%
    Special Price $51.26 Regular Price $72.99
  6. NGK Spark Plug
    6 pc NGK Iridium IX Spark Plugs for 2014 Infiniti Q60 3.7L V6
    Special Price $51.48 Regular Price $73.99
  7. NGK Spark Plug
    6 pc NGK Iridium IX Spark Plugs for 2014-2018 Infiniti Q70 3.5L V6
    Special Price $52.53 Regular Price $74.99
  8. NGK Iridium IX
    8 pc NGK Iridium IX 7559 UR45IX Spark Plugs
    Special Price $59.25 Regular Price $84.99
  9. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 1990-2000 Lexus LS400 4.0L V8
    Special Price $66.57 Regular Price $94.99
  10. NGK Iridium IX
    10 pc NGK Iridium IX 6510 LTR7IX-11 Spark Plugs
    Special Price $78.46 Regular Price $111.99
  11. NGK Iridium IX
    12 pc NGK Iridium IX Spark Plugs for 2005 Aston Martin DB9 6.0L V12
    Special Price $99.91 Regular Price $142.99
  12. NGK Iridium IX
    16 pc NGK Iridium IX Spark Plugs for 2006-2008 Dodge Charger 5.7L V8
    Rating:
    100%
    Special Price $129.27 Regular Price $184.99
  13. NGK Iridium IX
    NGK Iridium IX 6684 BPR8EIX Spark Plug
    Special Price $7.89 Regular Price $10.99
  14. NGK Iridium IX
    NGK Iridium IX 6597 BPR5EIX Spark Plug
    Special Price $7.89 Regular Price $10.99
  15. NGK Iridium IX
    2 pc NGK Iridium IX 5044 BR8EIX Spark Plugs
    Special Price $17.29 Regular Price $24.99
  16. NGK Iridium IX
    4 pc NGK Iridium IX 5545 DPR9EIX-9 Spark Plugs
    Special Price $32.19 Regular Price $45.99
  17. NGK Iridium IX
    4 pc NGK Iridium IX 6681 DR8EIX Spark Plugs
    Special Price $32.19 Regular Price $45.99
  18. NGK Iridium IX
    4 pc NGK Iridium IX 9198 CPR7EAIX-9 Spark Plugs
    Special Price $32.58 Regular Price $46.99
  19. NGK Iridium IX
    4 pc NGK Iridium IX 4469 LFR5AIX-11 Spark Plugs
    Special Price $32.59 Regular Price $46.99
  20. NGK Iridium IX
    4 pc NGK Iridium IX 5044 BR8EIX Spark Plugs
    Special Price $32.72 Regular Price $46.99
  21. NGK Iridium IX
    4 pc NGK Iridium IX 4055 BPR7EIX Spark Plugs
    Rating:
    100%
    Special Price $32.72 Regular Price $46.99
  22. NGK Iridium IX
    4 pc NGK Iridium IX 6418 BKR6EIX Spark Plugs
    Rating:
    100%
    Special Price $33.12 Regular Price $46.99
  23. NGK Iridium IX
    4 pc NGK Iridium IX 6692 BR10HIX Spark Plugs
    Special Price $33.26 Regular Price $47.99
  24. NGK Iridium IX
    4 pc NGK Iridium IX 5687 BR9HIX Spark Plugs
    Special Price $33.26 Regular Price $47.99
  25. NGK Iridium IX
    4 pc NGK Iridium IX 7001 BR8HIX Spark Plugs
    Special Price $33.26 Regular Price $47.99
  26. NGK Spark Plug
    4 pc NGK Iridium IX 97138 ZFR6AIX-11S Spark Plugs
    Special Price $33.26 Regular Price $34.58
  27. NGK Iridium IX
    4 pc NGK Iridium IX 6957 BR10EIX SOLID Spark Plugs
    Special Price $33.39 Regular Price $34.75
  28. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2013-2020 Ford Fusion 2.0L L4
    Special Price $35.94 Regular Price $50.99
  29. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2015-2021 Ford Mustang 2.3L L4
    Special Price $35.94 Regular Price $50.99
  30. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 2006-2011 Honda Civic 2.0L L4
    Rating:
    100%
    Special Price $35.94 Regular Price $50.99
Page
per page

Whether you are looking for a long-lasting performance spark plug, or one for everyday use, Sixity has the NGK, DENSO, and Champion spark plugs you need, at prices you will not find anywhere else.

Spark Plug Features

  • Precision ceramic insulators
  • Corrosion-resistant shell with triple high pressure gas seals
  • Screw or snap-on electrical connectors
  • Pre-installed metal compression gaskets
  • Copper-core electrode cooling
  • Application specific heat-range design
  • Improved cold-starting performance
  • Smooth firing at high or low engine RPM
  • Reduced electrode erosion and long service life
  • Enhanced ignition efficiency and fuel economy
  • Superior anti-fouling characteristics
  • Reduced hot-spark firing voltage requirements
  • Maximum engine horsepower and torque
  • Superior throttle-response, acceleration and WOT performance
  • Precision Laser-welded Iridium electrodes - 6X harder than platinum
  • Precision ceramic insulators
  • Corrosion-resistant shell with triple high pressure gas seals
  • Screw or snap-on electrical connectors
  • Pre-installed metal compression gaskets
  • Copper-core electrode cooling
  • Application specific heat-range design
  • Improved cold-starting performance
  • Smooth firing at high or low engine RPM
  • Reduced electrode erosion and long service life
  • Enhanced ignition efficiency and fuel economy
  • Superior anti-fouling characteristics
  • Reduced hot-spark firing voltage requirements
  • Maximum engine horsepower and torque
  • Superior throttle-response, acceleration and WOT performance
  • Precision Laser-welded Iridium electrodes - 6X harder than platinum
© 2022 Sixity, Inc. Part of Proximity Group, an American-owned and operated online retailer. All Rights Reserved.