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Iridium High-Performance Car Spark Plugs

Top brands like NGK, DENSO, Autolite, and Champion help maximize your engine’s power and performance. We carry thousands of automotive spark plugs for everything from a Chevy to a Ford or a Volkswagen to a Toyota, all backed by our 100% fitment guarantee. Browse popular series, including NGK Iridium, NGK Racing, and NGK G-Power, to find the perfect replacement spark plugs for your vehicle.

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. Champion Spark Plug
    6 pc Champion Iridium 9005 QC10WEP Spark Plugs
    Rating:
    100%
    4  Reviews
    Special Price $55.81 Regular Price $79.99
    Champion
  2. Champion Spark Plug
    6 pc Champion Iridium 9809 QC8WEP Spark Plugs
    Rating:
    100%
    2  Reviews
    Special Price $54.99 Regular Price $78.99
    Champion
  3. Champion Spark Plug
    Champion Iridium 9005 QC10WEP Spark Plug
    Rating:
    100%
    1  Review
    Special Price $10.04 Regular Price $13.99
    Champion
  4. Bosch Spark Plug
    2 pc Bosch Iridium FR7KI332S Spark Plugs
    Special Price $17.72 Regular Price $24.99
    Bosch
  5. Champion Spark Plug
    16 pc Champion Iridium Spark Plugs for 2011-2019 Ram 1500 5.7L V8
    Rating:
    100%
    5  Reviews
    Special Price $127.19 Regular Price $181.99
    Champion
  6. Champion Spark Plug
    8 pc Champion Iridium 9005 QC10WEP Spark Plugs
    Special Price $72.63 Regular Price $103.99
    Champion
  7. Champion Spark Plug
    4 pc Champion Iridium 9005 QC10WEP Spark Plugs
    Special Price $37.50 Regular Price $53.99
    Champion
  8. Champion Spark Plug
    10 pc Champion Iridium 9005 QC10WEP Spark Plugs
    Special Price $90.57 Regular Price $128.99
    Champion
  9. Champion Spark Plug
    8 pc Champion Iridium 9809 QC8WEP Spark Plugs
    Rating:
    100%
    1  Review
    Special Price $73.02 Regular Price $103.99
    Champion
  10. Champion Spark Plug
    4 pc Champion Iridium 9410 REA12WMPB4 Spark Plugs
    Special Price $26.51 Regular Price $37.99
    Champion
  11. Champion Spark Plug
    4 pc Champion Iridium 9809 QC8WEP Spark Plugs
    Special Price $36.21 Regular Price $51.99
    Champion
  12. Champion Iridium Spark Plug
    16 pc Champion Iridium Spark Plugs for 2003-2008 Dodge Ram 1500 5.7L V8
    Rating:
    100%
    1  Review
    Special Price $129.33 Regular Price $184.99
    Champion
  13. Champion Spark Plug
    6 pc Champion Iridium 9407 RER8ZWYCB4 Spark Plugs
    Special Price $42.51 Regular Price $60.99
    Champion
  14. Champion Iridium Spark Plug
    6 pc Champion Iridium Spark Plugs for 2011-2020 Chrysler 300 3.6L V6
    Special Price $53.01 Regular Price $75.99
    Champion
  15. Champion Spark Plug
    4 pc Champion Iridium Spark Plugs for 1993-2002 Mitsubishi Mirage 1.8L L4
    Special Price $37.69 Regular Price $53.99
    Champion
  16. Bosch Spark Plug
    4 pc Bosch Iridium Spark Plugs for 2013-2019 Ford Escape 2.0L L4
    Special Price $45.07 Regular Price $63.99
    Bosch
  17. Champion Iridium Spark Plug
    6 pc Champion Iridium Spark Plugs for 2001-2010 Dodge Grand Caravan 3.3L 3.8L V6
    Special Price $52.42 Regular Price $74.99
    Champion
  18. Champion Spark Plug
    16 pc Champion Iridium Spark Plugs for 2009-2019 Jeep Grand Cherokee 5.7L V8
    Special Price $127.19 Regular Price $181.99
    Champion
  19. Champion Spark Plug
    4 pc Champion Iridium 9201 RC12WYPB4 Spark Plugs
    Special Price $27.82 Regular Price $39.99
    Champion
  20. Champion Spark Plug
    6 pc Champion Iridium 9417 Spark Plugs
    Rating:
    100%
    1  Review
    Special Price $41.65 Regular Price $59.99
    Champion
    Out of stock
  21. Bosch Spark Plug
    4 pc Bosch Iridium Spark Plugs for 2021 Kia Seltos 1.6L L4
    Special Price $44.76 Regular Price $63.99
    Bosch
  22. Champion Spark Plug
    8 pc Champion Iridium 9777 Spark Plugs
    Special Price $54.18 Regular Price $76.99
    Champion
  23. Champion Iridium Spark Plug
    8 pc Champion Iridium Spark Plugs for 2000-2014 Chevrolet Tahoe 4.8L 5.3L 6.0L 6.2L V8
    Special Price $62.00 Regular Price $88.99
    Champion
  24. Champion Spark Plug
    16 pc Champion Iridium Spark Plugs for 2009-2019 Dodge Challenger 5.7L V8
    Special Price $127.19 Regular Price $181.99
    Champion
  25. Champion Iridium Spark Plug
    6 pc Champion Iridium Spark Plugs for 2018-2019 Genesis G80 3.3L V6
    Special Price $51.99 Regular Price $73.99
    Champion
  26. Bosch Spark Plug
    4 pc Bosch Iridium 9710 Spark Plugs
    Special Price $33.18 Regular Price $46.99
    Bosch
  27. Champion Iridium Spark Plug
    16 pc Champion Iridium Spark Plugs for 2019 Ram 1500 Classic 5.7L V8
    Special Price $129.79 Regular Price $184.99
    Champion
  28. Champion Spark Plug
    Champion Iridium 9804 RN8WYPB3 Spark Plug
    Special Price $8.00 Regular Price $10.99
    Champion
  29. Champion Spark Plug
    2 pc Champion Iridium 9804 RN8WYPB3 Spark Plugs
    Special Price $14.81 Regular Price $20.99
    Champion
  30. Champion Spark Plug
    4 pc Champion Iridium Spark Plugs for 2008-2018 Nissan Rogue 2.5L L4
    Rating:
    100%
    2  Reviews
    Special Price $36.94 Regular Price $52.99
    Champion
  31. Champion Spark Plug
    4 pc Champion Iridium Spark Plugs for 1980 Nissan 720 2.0L L4
    Special Price $39.02 Regular Price $55.99
    Champion
  32. Champion Spark Plug
    6 pc Champion Iridium Spark Plugs for 2003-2008 Hyundai Tiburon 2.7L V6
    Special Price $51.71 Regular Price $73.99
    Champion
  33. Champion Iridium Spark Plug
    6 pc Champion Iridium Spark Plugs for 2013-2018 Acura RDX 3.5L V6
    Special Price $53.01 Regular Price $75.99
    Champion
  34. Champion Spark Plug
    16 pc Champion Iridium Spark Plugs for 2009-2019 Dodge Charger 5.7L V8
    Special Price $129.79 Regular Price $184.99
    Champion
  35. Champion Spark Plug
    16 pc Champion Iridium Spark Plugs for 2009-2010 Dodge Ram 1500 5.7L V8
    Rating:
    100%
    1  Review
    Special Price $129.79 Regular Price $184.99
    Champion
  36. Champion Spark Plug
    4 pc Champion Iridium 9055 REC12WMPB5 Spark Plugs
    Special Price $28.06 Regular Price $39.99
    Champion
  37. Champion Spark Plug
    4 pc Champion Iridium Spark Plugs for 2013-2017 Honda Accord 2.4L L4
    Rating:
    80%
    1  Review
    Special Price $36.94 Regular Price $52.99
    Champion
  38. Champion Spark Plug
    4 pc Champion Iridium Spark Plugs for 2017-2018 Toyota Corolla iM 1.8L L4
    Special Price $36.94 Regular Price $52.99
    Champion
  39. Champion Spark Plug
    6 pc Champion Iridium 9034 RC12WEPB5 Spark Plugs
    Special Price $42.61 Regular Price $60.99
    Champion
  40. Bosch Spark Plug
    4 pc Bosch Iridium Spark Plugs for 2013-2021 Hyundai Veloster 1.6L L4
    Special Price $43.87 Regular Price $62.99
    Bosch
  41. Bosch Spark Plug
    4 pc Bosch Iridium Spark Plugs for 2011-2019 Hyundai Sonata 1.6L 2.0L 2.4L L4
    Special Price $44.76 Regular Price $63.99
    Bosch
  42. Champion Spark Plug
    6 pc Champion Iridium 9810 Spark Plugs
    Special Price $52.77 Regular Price $74.99
    Champion
  43. Champion Iridium Spark Plug
    6 pc Champion Iridium Spark Plugs for 2018 Jeep Wrangler JK 3.6L V6
    Special Price $53.01 Regular Price $75.99
    Champion
  44. Champion Iridium Spark Plug
    6 pc Champion Iridium Spark Plugs for 2011-2020 Dodge Charger 3.6L V6
    Special Price $54.09 Regular Price $76.99
    Champion
  45. Champion Iridium Spark Plug
    6 pc Champion Iridium Spark Plugs for 2011-2020 Dodge Grand Caravan 3.6L V6
    Special Price $54.09 Regular Price $76.99
    Champion
  46. Champion Spark Plug
    6 pc Champion Iridium Spark Plugs for 1981-2001 Jeep Cherokee 4.0L 4.2L L6
    Special Price $54.19 Regular Price $76.99
    Champion
  47. Champion Spark Plug
    6 pc Champion Iridium Spark Plugs for 2006-2015 Lexus IS250 2.5L V6
    Special Price $56.12 Regular Price $79.99
    Champion
  48. Champion Iridium Spark Plug
    6 pc Champion Iridium Spark Plugs for 2011-2018 Porsche Cayenne 3.6L V6
    Special Price $56.41 Regular Price $80.99
    Champion
    Out of stock
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The Sixity Auto Advantage

Finding the right car spark plugs can seem complicated, but our goal is to make it simple. We combine a massive selection of parts from trusted brands with the expert, US-based support you need to make the right choice. With fast shipping and a 100% fitment guarantee, we provide a hassle-free shopping experience that has earned the trust of over a million customers.

Platinum, Iridium, and More

Choosing the right material is key to your engine’s performance and longevity. We carry a massive selection of aftermarket spark plugs in every type, from long-lasting iridium to dependable copper plugs for classic vehicles. Whatever your engine needs, we have the right plug to match its specific requirements, ensuring optimal spark and efficiency.

Expert Support When You Need It

Not sure which plug is right for your vehicle? Our friendly, US-based customer support team is here to help. With deep knowledge of our full catalog, they can guide you to the perfect car spark plugs for your specific make and model. We are committed to helping you buy with confidence and getting your installation done right the first time.

Frequently Asked Questions

Got a question about our automotive spark plugs? Here are a few things people often ask. For anything else, our main FAQ page has you covered.

How do I find the right spark plugs for my car?

Your best bet is our vehicle selector tool. Just plug in your car’s info, and we’ll show you exactly which plugs are guaranteed to work.

Are your aftermarket spark plugs as good as the originals?

Definitely. We only carry parts that are as good or better than the ones that came in your car, but without those dealership prices.

How often should I replace car spark plugs?

That really depends on the type. A standard copper plug is usually good for about 20,000 miles, while a high-end iridium one can last 100,000. Your owner’s manual will have the exact schedule for your engine.

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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100% fitment guarantee at sixityauto.com

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