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Racing 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. Autolite Spark Plug
    Autolite Racing AR3910X Spark Plug
    Special Price $5.96 Regular Price $8.99
    Autolite
    Out of stock
  2. Autolite Spark Plug
    4 pc Autolite Racing AR3910X Spark Plugs
    Special Price $20.74 Regular Price $29.99
    Autolite
    Out of stock
  3. NGK Racing
    NGK Racing 5962 R6061-10 Spark Plug
    Special Price $9.25 Regular Price $12.99
    NGK / NTK
  4. Autolite Spark Plug
    8 pc Autolite Racing AR3910X Spark Plugs
    Special Price $40.62 Regular Price $57.99
    Autolite
    Out of stock
  5. NGK Spark Plug
    NGK Racing 97537 R2558E-9 Spark Plug
    Special Price $37.48 Regular Price $53.99
    NGK / NTK
  6. NGK Racing
    4 pc NGK Racing 4654 R7437-9 Spark Plugs
    Special Price $196.79 Regular Price $280.99
    NGK / NTK
  7. NGK Racing
    4 pc NGK Racing 4482 R6725-115 Spark Plugs
    Special Price $161.91 Regular Price $230.99
    NGK / NTK
  8. Autolite Spark Plug
    8 pc Autolite Racing AR3932X Spark Plugs
    Special Price $37.96 Regular Price $53.99
    Autolite
    Out of stock
  9. NGK Spark Plug
    NGK Racing 93253 R2556G-9 Spark Plug
    Special Price $37.48 Regular Price $53.99
    NGK / NTK
  10. NGK Racing
    NGK Racing 4482 R6725-115 Spark Plug
    Special Price $40.32 Regular Price $57.99
    NGK / NTK
  11. NGK Racing
    10 pc NGK Racing 2773 R6061-11 Spark Plugs
    Special Price $84.53 Regular Price $120.99
    NGK / NTK
    Out of stock
  12. NGK Spark Plug
    NGK Racing 2741 R6252K-105 Spark Plug
    Special Price $9.07 Regular Price $12.99
    NGK / NTK
  13. NGK Spark Plug
    4 pc NGK Racing 95811 R7448A-10 Spark Plugs
    Special Price $31.63 Regular Price $44.99
    NGK / NTK
  14. NGK Spark Plug
    4 pc NGK Racing 4905 R7438-8 Spark Plugs
    Special Price $200.81 Regular Price $286.99
    NGK / NTK
  15. NGK Spark Plug
    6 pc NGK Racing 97537 R2558E-9 Spark Plugs
    Special Price $220.54 Regular Price $314.99
    NGK / NTK
  16. Champion Spark Plug
    8 pc Champion 794 C61YC Spark Plugs
    Special Price $30.59 Regular Price $43.99
    Champion
  17. NGK Spark Plug
    4 pc NGK Racing 4656 R7438-9 Spark Plugs
    Special Price $200.81 Regular Price $286.99
    NGK / NTK
  18. NGK Spark Plug
    6 pc NGK Racing 97278 R2558E-10 Spark Plugs
    Special Price $225.05 Regular Price $320.99
    NGK / NTK
  19. NGK Spark Plug
    4 pc NGK Racing 2741 R6252K-105 Spark Plugs
    Special Price $33.66 Regular Price $47.99
    NGK / NTK
  20. NGK Racing
    10 pc NGK Racing 5962 R6061-10 Spark Plugs
    Special Price $82.84 Regular Price $117.99
    NGK / NTK
  21. NGK Spark Plug
    4 pc NGK Racing 97537 R2558E-9 Spark Plugs
    Special Price $150.33 Regular Price $214.99
    NGK / NTK
  22. Champion Spark Plug
    8 pc Champion 670 V59C Spark Plugs
    Special Price $30.59 Regular Price $43.99
    Champion
  23. NGK Racing
    NGK Racing 4654 R7437-9 Spark Plug
    Special Price $50.87 Regular Price $72.99
    NGK / NTK
  24. NGK Spark Plug
    8 pc NGK Racing 95811 R7448A-10 Spark Plugs
    Special Price $63.67 Regular Price $90.99
    NGK / NTK
  25. NGK Spark Plug
    4 pc NGK Racing 91975 R2556G-8 Spark Plugs
    Special Price $141.51 Regular Price $201.99
    NGK / NTK
  26. NGK Racing
    4 pc NGK Racing 4311 R6725-11 Spark Plugs
    Special Price $161.91 Regular Price $230.99
    NGK / NTK
  27. NGK Spark Plug
    4 pc NGK Racing 4985 R7282-105 Spark Plugs
    Special Price $211.42 Regular Price $301.99
    NGK / NTK
  28. NGK Spark Plug
    8 pc NGK Racing 93253 R2556G-9 Spark Plugs
    Special Price $293.77 Regular Price $419.99
    NGK / NTK
  29. Autolite Spark Plug
    6 pc Autolite Racing AR3932X Spark Plugs
    Special Price $28.69 Regular Price $40.99
    Autolite
    Out of stock
  30. NGK Spark Plug
    NGK Racing 4492 R6918B-8 Spark Plug
    Special Price $35.93 Regular Price $50.99
    NGK / NTK
  31. NGK Spark Plug
    6 pc NGK Racing 2741 R6252K-105 Spark Plugs
    Special Price $50.05 Regular Price $70.99
    NGK / NTK
  32. Champion Spark Plug
    10 pc Champion 296 C59CX Spark Plugs
    Special Price $56.05 Regular Price $79.99
    Champion
  33. NGK Spark Plug
    8 pc NGK Racing 96969 R7448A-9 Spark Plugs
    Special Price $63.67 Regular Price $90.99
    NGK / NTK
  34. NGK Racing
    8 pc NGK Racing 4074 R6061-9 Spark Plugs
    Special Price $66.28 Regular Price $94.99
    NGK / NTK
  35. NGK Spark Plug
    10 pc NGK Racing 3949 R6254E-105 Spark Plugs
    Special Price $77.77 Regular Price $110.99
    NGK / NTK
  36. NGK Spark Plug
    2 pc NGK Racing 4985 R7282-105 Spark Plugs
    Special Price $106.15 Regular Price $151.99
    NGK / NTK
  37. NGK Racing
    8 pc NGK Racing 4654 R7437-9 Spark Plugs
    Special Price $392.71 Regular Price $560.99
    NGK / NTK
  38. Champion Spark Plug
    6 pc Champion 792 C59YC Spark Plugs
    Special Price $26.14 Regular Price $36.99
    Champion
  39. NGK Racing
    4 pc NGK Racing 4074 R6061-9 Spark Plugs
    Special Price $33.58 Regular Price $47.99
    NGK / NTK
  40. Champion Spark Plug
    10 pc Champion 792 C59YC Spark Plugs
    Special Price $42.99 Regular Price $60.99
    Champion
  41. NGK Racing
    2 pc NGK Racing 4017 R6601-10 Spark Plugs
    Special Price $54.17 Regular Price $76.99
    NGK / NTK
  42. NGK Racing
    8 pc NGK Racing 5962 R6061-10 Spark Plugs
    Special Price $67.80 Regular Price $96.99
    NGK / NTK
  43. NGK Racing
    2 pc NGK Racing 7763 R7376-9 Spark Plugs
    Special Price $75.88 Regular Price $107.99
    NGK / NTK
  44. NGK Spark Plug
    NGK Racing 3235 R0045Q-9 Spark Plug
    Special Price $89.90 Regular Price $127.99
    NGK / NTK
  45. NGK Racing
    4 pc NGK Racing 4017 R6601-10 Spark Plugs
    Special Price $107.46 Regular Price $153.99
    NGK / NTK
  46. NGK Spark Plug
    4 pc NGK Racing 2000 R7282-10 Spark Plugs
    Special Price $211.36 Regular Price $301.99
    NGK / NTK
    Out of stock
  47. NGK Spark Plug
    4 pc NGK Racing 4940 R0373A-10 Spark Plugs
    Special Price $364.40 Regular Price $520.99
    NGK / NTK
    Out of stock
  48. NGK Spark Plug
    4 pc NGK Racing Spark Plugs for 2013-2016 Scion FR-S 2.0L H4
    Special Price $166.60 Regular Price $237.99
    NGK / NTK
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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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