NGK Iridium IX 4 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 Spark Plug
    4 pc NGK Iridium IX 93175 LKR7DIX-11S Spark Plugs
    Special Price $32.59 Regular Price $34.58
  2. NGK Iridium IX
    4 pc NGK Iridium IX 6684 BPR8EIX Spark Plugs
    Special Price $33.39 Regular Price $47.99
  3. NGK Iridium IX
    4 pc NGK Iridium IX 6510 LTR7IX-11 Spark Plugs
    Special Price $32.46 Regular Price $45.99
  4. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 1992-2000 Honda Civic 1.5L 1.6L L4
    Rating:
    100%
    Special Price $36.68 Regular Price $51.99
  5. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 2009-2018 Toyota RAV4 2.5L L4
    Special Price $36.83 Regular Price $52.99
  6. NGK Iridium IX
    4 pc NGK Iridium IX 5464 BKR5EIX-11 Spark Plugs
    Special Price $33.12 Regular Price $46.99
  7. NGK Iridium IX
    4 pc NGK Iridium IX 3521 CR9EIX Spark Plugs
    Rating:
    100%
    Special Price $32.58 Regular Price $46.99
  8. NGK Iridium IX
    4 pc NGK Iridium IX 3981 BR9EIX Spark Plugs
    Special Price $33.39 Regular Price $47.99
  9. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 2005-2010 Scion tC 2.4L L4
    Special Price $36.68 Regular Price $51.99
  10. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 1994-2005 Mazda Miata 1.8L L4
    Rating:
    100%
    Special Price $36.68 Regular Price $51.99
  11. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2003-2007 Honda Accord 2.4L L4
    Special Price $36.83 Regular Price $52.99
  12. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2002-2009 Honda CR-V 2.4L L4
    Special Price $36.83 Regular Price $52.99
  13. NGK Iridium IX
    4 pc NGK Iridium IX 6441 ZFR6FIX-11 Spark Plugs
    Special Price $33.12 Regular Price $46.99
  14. NGK Iridium IX
    4 pc NGK Iridium IX 6216 CR9EHIX-9 Spark Plugs
    Special Price $32.58 Regular Price $46.99
  15. NGK Iridium IX
    4 pc NGK Iridium IX 7669 CR8HIX Spark Plugs
    Special Price $32.58 Regular Price $46.99
  16. NGK Iridium IX
    4 pc NGK Iridium IX 8196 DCPR6EIX Spark Plugs
    Rating:
    100%
    Special Price $32.71 Regular Price $46.99
  17. NGK Iridium IX
    4 pc NGK Iridium IX 7803 DPR7EIX-9 Spark Plugs
    Special Price $32.85 Regular Price $46.99
  18. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2007-2014 Honda Fit 1.5L L4
    Special Price $36.09 Regular Price $51.99
  19. 4 pc NGK Iridium IX Spark Plugs for 2010-2017 Kia Soul 1.6L 2.0L L4
    4 pc NGK Iridium IX Spark Plugs for 2010-2017 Kia Soul 1.6L 2.0L L4
    Rating:
    100%
    Special Price $36.38 Regular Price $51.99
  20. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 2001-2005 Honda Civic 1.7L L4
    Rating:
    90%
    Special Price $36.68 Regular Price $51.99
  21. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 1992-2001 Honda Prelude 2.2L 2.3L L4
    Rating:
    100%
    Special Price $36.68 Regular Price $51.99
  22. NGK Iridium IX
    4 pc NGK Iridium IX 2707 BR9ECMIX Spark Plugs
    Rating:
    100%
    Special Price $49.52 Regular Price $70.99
  23. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 2010-2017 GMC Terrain 2.4L L4
    Special Price $35.94 Regular Price $50.99
  24. NGK Iridium IX
    4 pc NGK Iridium IX 6509 LTR6IX-11 Spark Plugs
    Special Price $32.46 Regular Price $45.99
  25. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 1997-1998 Honda CR-V 2.0L L4
    Special Price $35.94 Regular Price $50.99
  26. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 2001-2009 Toyota Prius 1.5L L4
    Special Price $35.94 Regular Price $50.99
  27. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2010-2014 Honda CR-V 2.4L L4
    Special Price $36.09 Regular Price $51.99
  28. 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
  29. NGK Iridium IX
    4 pc NGK Iridium IX 4218 CR8EIX Spark Plugs
    Special Price $31.92 Regular Price $45.99
  30. NGK Iridium IX
    4 pc NGK Iridium IX 6681 DR8EIX Spark Plugs
    Special Price $32.19 Regular Price $45.99
  31. NGK Iridium IX
    4 pc NGK Iridium IX 5545 DPR9EIX-9 Spark Plugs
    Special Price $32.19 Regular Price $45.99
  32. NGK Iridium IX
    4 pc NGK Iridium IX 9198 CPR7EAIX-9 Spark Plugs
    Special Price $32.58 Regular Price $46.99
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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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