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Spark Plugs for Mazda 6

Transform your Mazda 6's engine capabilities with the right spark plugs. Choose DENSO for seamless ignition and unmatched dependability, or rely on Bosch for long-term performance. Your Mazda 6 deserves superior components to guarantee driving excellence every time.

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  1. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2014-2020 Mazda 6 2.5L L4
    Rating:
    100%
    1  Review
    Special Price $40.72 Regular Price $57.99
    NGK / NTK
  2. NGK G-Power
    6 pc NGK G-Power Spark Plugs for 2003-2008 Mazda 6 3.0L V6
    Special Price $34.31 Regular Price $48.99
    NGK / NTK
  3. NGK Iridium IX
    6 pc NGK Iridium IX Spark Plugs for 2003-2008 Mazda 6 3.0L V6
    Special Price $55.75 Regular Price $79.99
    NGK / NTK
  4. NGK Laser Iridium
    4 pc NGK Laser Iridium Spark Plugs for 2014-2020 Mazda 6 2.5L L4
    Rating:
    100%
    1  Review
    Special Price $62.24 Regular Price $88.99
    NGK / NTK
  5. NGK Laser Iridium
    6 pc NGK Laser Iridium Spark Plugs for 2009-2013 Mazda 6 3.7L V6
    Special Price $62.52 Regular Price $88.99
    NGK / NTK
  6. NGK Laser Iridium
    4 pc NGK Laser Iridium Spark Plugs for 2006-2013 Mazda 6 2.3L 2.5L L4
    Special Price $56.15 Regular Price $79.99
    NGK / NTK
    Out of stock
  7. NGK Spark Plug
    4 pc NGK Laser Iridium Spark Plugs for 2018-2020 Mazda 6 2.5L L4
    Special Price $79.01 Regular Price $112.99
    NGK / NTK
  8. Champion Copper Plus Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 2003-2005 Mazda 6 2.3L L4
    Special Price $18.34 Regular Price $25.99
    Champion
  9. Bosch Spark Plug
    4 pc Bosch Platinum Spark Plugs for 2006-2013 Mazda 6 2.3L 2.5L L4
    Special Price $29.57 Regular Price $41.99
    Bosch
  10. E3 Spark Plug
    4 pc E3 Spark Plugs for 2014-2021 Mazda 6 2.5L L4
    Special Price $33.03 Regular Price $46.99
    E3 Spark Plugs
  11. Champion Spark Plug
    4 pc Champion Double Platinum Spark Plugs for 2006-2013 Mazda 6 2.3L 2.5L L4
    Special Price $33.39 Regular Price $47.99
    Champion
  12. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 2006-2013 Mazda 6 2.3L 2.5L L4
    Special Price $40.63 Regular Price $57.99
    NGK / NTK
  13. E3 Spark Plug
    6 pc E3 Spark Plugs for 2003-2008 Mazda 6 3.0L V6
    Special Price $45.52 Regular Price $64.99
    E3 Spark Plugs
  14. E3 Spark Plug
    6 pc E3 Spark Plugs for 2009-2013 Mazda 6 3.7L V6
    Special Price $46.29 Regular Price $65.99
    E3 Spark Plugs
  15. NGK Laser Iridium
    4 pc NGK Laser Iridium Spark Plugs for 2006-2007 Mazda 6 2.3L L4
    Special Price $60.44 Regular Price $85.99
    NGK / NTK
  16. DENSO Spark Plug
    4 pc DENSO Standard U-Groove Spark Plugs for 2003 Mazda 6 2.3L L4
    Special Price $18.81 Regular Price $26.99
    DENSO
  17. Autolite Copper Core Spark Plug
    4 pc Autolite Copper Core Spark Plug for 2003-2005 Mazda 6 2.3L L4
    Special Price $19.77 Regular Price $27.99
    Autolite
    Out of stock
  18. NGK V-Power
    4 pc NGK V-Power Spark Plugs for 2003-2005 Mazda 6 2.3L L4
    Special Price $20.72 Regular Price $29.99
    NGK / NTK
  19. Autolite Platinum Spark Plug
    4 pc Autolite Platinum Spark Plug for 2003-2005 Mazda 6 2.3L L4
    Special Price $22.35 Regular Price $31.99
    Autolite
    Out of stock
  20. Champion Spark Plug
    4 pc Champion Platinum Spark Plugs for 2006-2013 Mazda 6 2.3L 2.5L L4
    Special Price $22.79 Regular Price $32.99
    Champion
  21. Autolite Platinum Spark Plug
    4 pc Autolite Platinum Spark Plug for 2006-2013 Mazda 6 2.3L 2.5L L4
    Special Price $22.92 Regular Price $32.99
    Autolite
    Out of stock
  22. Champion Platinum Spark Plug
    4 pc Champion Platinum Spark Plugs for 2003-2005 Mazda 6 2.3L L4
    Special Price $23.48 Regular Price $33.99
    Champion
  23. Champion Copper Plus Spark Plug
    6 pc Champion Copper Plus Spark Plugs for 2003-2008 Mazda 6 3.0L V6
    Special Price $23.75 Regular Price $33.99
    Champion
  24. DENSO Spark Plug
    6 pc DENSO Standard U-Groove Spark Plugs for 2003 Mazda 6 3.0L V6
    Special Price $24.54 Regular Price $34.99
    DENSO
  25. DENSO Spark Plug
    6 pc DENSO Standard U-Groove Spark Plugs for 2004-2008 Mazda 6 3.0L V6
    Special Price $25.04 Regular Price $35.99
    DENSO
  26. Bosch Spark Plug
    4 pc Bosch Platinum Spark Plugs for 2003-2005 Mazda 6 2.3L L4
    Special Price $25.04 Regular Price $35.99
    Bosch
  27. NGK G-Power
    4 pc NGK G-Power Spark Plugs for 2003-2005 Mazda 6 2.3L L4
    Special Price $25.38 Regular Price $35.99
    NGK / NTK
  28. Autolite Copper Core Spark Plug
    6 pc Autolite Copper Core Spark Plug for 2003-2004 Mazda 6 3.0L V6
    Special Price $25.54 Regular Price $35.99
    Autolite
    Out of stock
  29. Autolite Copper Core Spark Plug
    6 pc Autolite Copper Core Spark Plugs for 2005-2008 Mazda 6 3.0L V6
    Special Price $26.06 Regular Price $36.99
    Autolite
  30. NGK V-Power
    6 pc NGK V-Power Spark Plugs for 2003-2008 Mazda 6 3.0L V6
    Special Price $26.55 Regular Price $37.99
    NGK / NTK
  31. Champion Copper Plus Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 2014-2020 Mazda 6 2.5L L4
    Special Price $27.79 Regular Price $39.99
    Champion
  32. DENSO Spark Plug
    4 pc DENSO Platinum TT Spark Plugs for 2003-2005 Mazda 6 2.3L L4
    Special Price $27.90 Regular Price $39.99
    DENSO
  33. Champion Spark Plug
    6 pc Champion Platinum Spark Plugs for 2009-2013 Mazda 6 3.7L V6
    Special Price $29.39 Regular Price $41.99
    Champion
  34. Autolite Platinum Spark Plug
    6 pc Autolite Platinum Spark Plug for 2003-2004 Mazda 6 3.0L V6
    Special Price $29.40 Regular Price $41.99
    Autolite
    Out of stock
  35. Autolite Platinum Spark Plug
    6 pc Autolite Platinum Spark Plug for 2005-2008 Mazda 6 3.0L V6
    Special Price $29.56 Regular Price $41.99
    Autolite
  36. Autolite Platinum Spark Plug
    6 pc Autolite Platinum Spark Plug for 2009-2013 Mazda 6 3.7L V6
    Special Price $30.17 Regular Price $42.99
    Autolite
    Out of stock
  37. Champion Platinum Spark Plug
    6 pc Champion Platinum Spark Plugs for 2003-2008 Mazda 6 3.0L V6
    Special Price $30.82 Regular Price $43.99
    Champion
  38. Champion Spark Plug
    4 pc Champion Double Platinum Spark Plugs for 2003-2005 Mazda 6 2.3L L4
    Special Price $32.38 Regular Price $45.99
    Champion
  39. Autolite Double Platinum Spark Plug
    4 pc Autolite Double Platinum Spark Plug for 2006-2013 Mazda 6 2.3L 2.5L L4
    Special Price $33.04 Regular Price $46.99
    Autolite
  40. E3 Spark Plug
    4 pc E3 Spark Plugs for 2003-2005 Mazda 6 2.3L L4
    Special Price $33.47 Regular Price $47.99
    E3 Spark Plugs
  41. NGK Spark Plug
    4 pc NGK G-Power Spark Plugs for 2006-2007 Mazda 6 2.3L L4
    Special Price $33.53 Regular Price $47.99
    NGK / NTK
  42. NGK G-Power
    4 pc NGK G-Power Spark Plugs for 2006-2013 Mazda 6 2.3L 2.5L L4
    Special Price $33.53 Regular Price $47.99
    NGK / NTK
  43. Autolite Double Platinum Spark Plug
    4 pc Autolite Double Platinum Spark Plug for 2014-2018 Mazda 6
    Special Price $33.61 Regular Price $47.99
    Autolite
    Out of stock
  44. E3 Spark Plug
    4 pc E3 Spark Plugs for 2006-2013 Mazda 6 2.3L 2.5L L4
    Special Price $34.00 Regular Price $48.99
    E3 Spark Plugs
  45. Autolite Double Platinum Spark Plug
    4 pc Autolite Double Platinum Spark Plug for 2003-2005 Mazda 6 2.3L L4
    Special Price $34.83 Regular Price $49.99
    Autolite
  46. Champion Spark Plug
    4 pc Champion Iridium Spark Plugs for 2006-2007 Mazda 6 2.3L L4
    Special Price $35.59 Regular Price $50.99
    Champion
  47. Champion Spark Plug
    4 pc Champion Iridium Spark Plugs for 2003-2005 Mazda 6 2.3L L4
    Special Price $36.04 Regular Price $50.99
    Champion
  48. Champion Double Platinum Spark Plug
    4 pc Champion Double Platinum Spark Plugs for 2006-2007 Mazda 6 2.3L L4
    Special Price $36.10 Regular Price $51.99
    Champion
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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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