NGK Iridium IX 8 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.

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  1. NGK Iridium IX
    8 pc NGK Iridium IX 6510 LTR7IX-11 Spark Plugs
    Rating:
    100%
    Special Price $61.27 Regular Price $87.99
  2. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 2007-2020 Toyota Tundra 4.6L 5.7L V8
    Rating:
    100%
    Special Price $66.87 Regular Price $95.99
  3. NGK Iridium IX
    8 pc NGK Iridium IX 3690 TR7IX Spark Plugs
    Rating:
    100%
    Special Price $60.73 Regular Price $86.99
  4. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 2014-2019 Chevrolet Corvette 6.2L V8
    Rating:
    100%
    Special Price $66.57 Regular Price $94.99
  5. NGK Iridium IX
    8 pc NGK Iridium IX 6509 LTR6IX-11 Spark Plugs
    Special Price $60.05 Regular Price $85.99
  6. NGK Iridium IX
    8 pc NGK Iridium IX 7669 CR8HIX Spark Plugs
    Special Price $60.19 Regular Price $85.99
  7. NGK Iridium IX
    8 pc NGK Iridium IX 3689 TR6IX Spark Plugs
    Rating:
    100%
    Special Price $60.73 Regular Price $86.99
  8. NGK Iridium IX
    8 pc NGK Iridium IX 372 ZNAR6AIX-11 Spark Plugs
    Special Price $60.46 Regular Price $85.99
  9. NGK Iridium IX
    8 pc NGK Iridium IX 2309 LFR7AIX Spark Plugs
    Special Price $60.31 Regular Price $85.99
  10. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 2004-2015 Nissan Titan 5.6L V8
    Rating:
    100%
    Special Price $68.24 Regular Price $96.99
  11. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 2011-2017 Ford F-150 5.0L V8
    Rating:
    100%
    Special Price $67.93 Regular Price $96.99
  12. NGK Iridium IX
    8 pc NGK Iridium IX 3691 TR8IX Spark Plugs
    Special Price $59.51 Regular Price $84.99
  13. NGK Iridium IX
    8 pc NGK Iridium IX 7316 TR55-1IX Spark Plugs
    Special Price $60.73 Regular Price $86.99
  14. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 1992-2000 Lexus SC400 4.0L V8
    Special Price $67.93 Regular Price $96.99
  15. NGK Iridium IX
    8 pc NGK Iridium IX 2318 BR6FIX Spark Plugs
    Special Price $59.25 Regular Price $84.99
  16. NGK Iridium IX
    8 pc NGK Iridium IX 2669 BKR9EIX Spark Plugs
    Special Price $61.27 Regular Price $87.99
  17. NGK Iridium IX
    8 pc NGK Iridium IX 7189 XR4IX Spark Plugs
    Special Price $60.31 Regular Price $61.55
  18. NGK Iridium IX
    8 pc NGK Iridium IX 5686 DR7EIX Spark Plugs
    Special Price $59.51 Regular Price $84.99
  19. NGK Iridium IX
    8 pc NGK Iridium IX 7355 XR5IX Spark Plugs
    Special Price $60.31 Regular Price $85.99
  20. NGK Iridium IX
    8 pc NGK Iridium IX 5464 BKR5EIX-11 Spark Plugs
    Special Price $61.27 Regular Price $87.99
  21. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 2008-2010 Ford Mustang 4.6L V8
    Special Price $65.68 Regular Price $93.99
  22. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 2008-2014 Ford Expedition 5.4L V8
    Rating:
    100%
    Special Price $65.68 Regular Price $93.99
  23. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 2011-2019 Ford Mustang 5.0L 5.2L V8
    Rating:
    80%
    Special Price $66.57 Regular Price $94.99
  24. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 2005-2015 Nissan Armada 5.6L V8
    Rating:
    87%
    Special Price $66.87 Regular Price $95.99
  25. NGK Spark Plug
    8 pc NGK Iridium IX Spark Plugs for 2012-2016 Hyundai Equus 5.0L V8
    Rating:
    100%
    Special Price $66.87 Regular Price $95.99
  26. NGK Iridium IX
    8 pc NGK Iridium IX Spark Plugs for 2004-2009 Audi S4 4.2L V8
    Special Price $67.93 Regular Price $96.99
  27. NGK Iridium IX
    8 pc NGK Iridium IX 7559 UR45IX Spark Plugs
    Special Price $59.25 Regular Price $84.99
  28. 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
  29. NGK Iridium IX
    8 pc NGK Iridium IX 3521 CR9EIX Spark Plugs
    Rating:
    100%
    Special Price $58.98 Regular Price $83.99
  30. NGK Iridium IX
    8 pc NGK Iridium IX 7401 UR4IX Spark Plugs
    Special Price $59.25 Regular Price $84.99
  31. NGK Iridium IX
    8 pc NGK Iridium IX 2668 BKR8EIX Spark Plugs
    Special Price $60.05 Regular Price $85.99
  32. NGK Iridium IX
    8 pc NGK Iridium IX 5689 BCPR6EIX Spark Plugs
    Special Price $60.05 Regular Price $85.99
  33. NGK Iridium IX
    8 pc NGK Iridium IX 6619 LFR6AIX-11 Spark Plugs
    Special Price $60.31 Regular Price $85.99
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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
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