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Spark Plugs for Mazda CX-9

Maximize the potential of your Mazda CX-9 by equipping it with high-quality spark plugs. Look to NGK for reliability and superior ignition power, or consider Autolite for durability and consistent performance. Your Mazda CX-9 deserves the best to retain its exceptional driving experience.

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  1. NGK Spark Plug
    4 pc NGK Laser Iridium Spark Plugs for 2016-2020 Mazda CX-9 2.5L L4
    Special Price $77.54 Regular Price $110.99
    NGK / NTK
  2. NGK Laser Iridium
    6 pc NGK Laser Iridium Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $62.65 Regular Price $88.99
    NGK / NTK
  3. NGK Iridium IX
    6 pc NGK Iridium IX Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Rating:
    100%
    1  Review
    Special Price $55.08 Regular Price $78.99
    NGK / NTK
  4. DENSO Spark Plug
    6 pc DENSO Iridium TT Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $71.35 Regular Price $101.99
    DENSO
  5. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $76.67 Regular Price $109.99
    NGK / NTK
  6. NGK Laser Platinum
    6 pc NGK Laser Platinum Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $63.03 Regular Price $89.99
    NGK / NTK
  7. Champion Spark Plug
    6 pc Champion Iridium Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $64.82 Regular Price $92.99
    Champion
  8. E3 Spark Plug
    6 pc E3 Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $47.24 Regular Price $66.99
    E3 Spark Plugs
  9. Autolite Platinum Spark Plug
    6 pc Autolite Platinum Spark Plug for 2007-2015 Mazda CX-9
    Special Price $29.56 Regular Price $41.99
    Autolite
    Out of stock
  10. Champion Spark Plug
    6 pc Champion Platinum Spark Plugs for 2007 Mazda CX-9 3.5L V6
    Special Price $35.27 Regular Price $49.99
    Champion
  11. Champion Spark Plug
    6 pc Champion Platinum Spark Plugs for 2008-2015 Mazda CX-9 3.7L V6
    Special Price $36.16 Regular Price $51.99
    Champion
  12. Bosch Spark Plug
    6 pc Bosch Platinum Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $43.12 Regular Price $61.99
    Bosch
  13. Autolite Double Platinum Spark Plug
    6 pc Autolite Double Platinum Spark Plug for 2007-2015 Mazda CX-9
    Special Price $45.43 Regular Price $64.99
    Autolite
    Out of stock
  14. NGK Spark Plug
    6 pc NGK G-Power Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $46.83 Regular Price $66.99
    NGK / NTK
  15. Bosch Spark Plug
    6 pc Bosch Double Platinum Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $48.51 Regular Price $68.99
    Bosch
    Out of stock
  16. Champion Spark Plug
    6 pc Champion Double Platinum Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $49.78 Regular Price $70.99
    Champion
  17. Autolite Iridium XP Spark Plug
    6 pc Autolite Iridium XP Spark Plug for 2007-2015 Mazda CX-9
    Special Price $50.87 Regular Price $72.99
    Autolite
    Out of stock
  18. Bosch Spark Plug
    6 pc Bosch Double Iridium Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $58.11 Regular Price $82.99
    Bosch
  19. DENSO Spark Plug
    6 pc DENSO Iridium Power Spark Plugs for 2007-2015 Mazda CX-9 3.5L 3.7L V6
    Special Price $64.03 Regular Price $90.99
    DENSO
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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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