Mazda CX-9 Spark Plug Replacement at your home or office.

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Spark Plug Replacement Estimate for Mazda CX-9

Mazda CX-9 Spark Plug Replacement costs $131 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$73 to $173
Labor: $70 -$160
Parts: $3 -$13
Average Dealer price
$99 to 213
Average Shop price
$87 to 183
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
2014 Mazda CX-9V6-3.7LService typeSpark Plug ReplacementYourMechanic Price$149.68Shop/Dealer Price$181.74 - $219.10
2016 Mazda CX-9L4-2.5L TurboService typeSpark Plug ReplacementYourMechanic Price$75.72Shop/Dealer Price$91.74 - $106.97
2009 Mazda CX-9V6-3.7LService typeSpark Plug ReplacementYourMechanic Price$163.68Shop/Dealer Price$198.69 - $238.26
2007 Mazda CX-9V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$163.68Shop/Dealer Price$198.73 - $238.34
2012 Mazda CX-9V6-3.7LService typeSpark Plug ReplacementYourMechanic Price$149.68Shop/Dealer Price$181.76 - $219.13
2015 Mazda CX-9V6-3.7LService typeSpark Plug ReplacementYourMechanic Price$152.44Shop/Dealer Price$185.18 - $224.60
2008 Mazda CX-9V6-3.7LService typeSpark Plug ReplacementYourMechanic Price$163.68Shop/Dealer Price$198.81 - $238.48
2017 Mazda CX-9L4-2.5L TurboService typeSpark Plug ReplacementYourMechanic Price$75.72Shop/Dealer Price$91.74 - $106.96
Show example Mazda CX-9 Spark Plug Replacement prices

Spark Plug Replacement Service & Cost

What are the Spark Plugs all about?

The spark plugs are an important part of the ignition system. When you turn the ignition key (car's key) on, it causes the ignition coil to generate the spark which ignites the air-fuel mixture in the engine cylinders to start the engine. The number of spark plugs in the car is the same as the number of cylinders, although some vehicle manufacturers will use two spark plugs per cylinder.

Over time, the spark plugs wear out and require replacement. When the spark plugs wear out, it is harder for it the air-fuel mixture to ignite, resulting in engine misfires. If one of the spark plugs has failed, the car will still start and run, but it will run poorly. On some vehicles, spark plug replacement may be labor intensive and involve removal of the intake plenum.

Spark plugs-MATROX-1

Keep in mind:

  • When the spark plugs are replaced, it is a good idea to inspect the ignition cables as well.
  • Spark plugs come in numerous ratings, and the correct rating for your vehicle should always be used.

How it's done:

  • Scan the car for codes.
  • Clean all surface areas around the spark plugs.
  • Remove spark plugs.
  • Inspect threads in engine head (where plugs are installed).
  • Perform compression test if needed.
  • Inspect ignition wires.
  • Apply anti-seize to the threads of the spark plugs.
  • Install new spark plugs.
  • If needed replace any gaskets removed.

Our recommendation:

During routine maintenance and checkups, your ignition system should always be inspected. Any time that a component of the ignition system is replaced, it’s a good idea to consider replacing the spark plugs as well. If you don’t preemptively change your spark plugs your engine will let you know by misfiring or running poorly, so schedule an inspection as soon as you notice that your engine is not performing properly.

What common symptoms indicate you may need to replace the Spark Plugs?

  • Check Engine light is on.
  • Engine misfires.
  • Poor fuel economy.
  • Vibration coming from the engine.

How important is this service?

Spark plugs are responsible for igniting the fuel that your engine uses to run. When you turn your key, a small voltage of power is sent to the ignition coil, where it is transformed into high voltage currency. This high voltage currency is sent through the ignition cables to the spark plugs. The spark plugs use the power to create a spark, which ignites the fuel, and allows the engine to function.

When the spark plugs malfunction, this spark won’t be created, and the fuel will not be ignited as it should. Your vehicle has many spark plugs, so depending on how many fail, your engine may either run poorly, or not run at all. Continuing to drive a vehicle with malfunctioning spark plugs can also cause damage to the catalytic converter.

Fast and easy Spark Plug Replacement service at your home or office.

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Meet some of our expert Mazda mechanics

Real customer reviews from Mazda owners like you.

659 reviews
Patrick
29 years of experience
Prompt, texted to say he could make it earlier if that was convenient for me, and he was in and out in about 35-40 minutes.
2012 MAZDA CX-9 - OIL CHANGE
583 reviews
Tien
19 years of experience
punctual, efficient, good service
2000 MAZDA PROTEGE - SPARK PLUG REPLACEMENT
236 reviews
Augie
27 years of experience
Augie was friendly, knowledgeable , showed up on time and finished everything in a timely manner. I gave 4 stars because he came for a brake pad and rotor replacement, but didn't have the correct tool, so he had to rechedule for another day which, was a bit frustrating and inconvenient. He did rechedule for another time that worked for me a few days later, but I do not normally drive to work(take metro) so driving in twice was slighly bothersome. Other than that, I would recommend him.
2011 MAZDA 6 - BRAKE PADS REPLACEMENT (REAR)
128 reviews
Eugenio
22 years of experience
Great work, nice guy.
2012 MAZDA 3 - OIL CHANGE
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2014 Mazda CX-9V6-3.7LService typeSpark Plug ReplacementYourMechanic Price$149.68Shop/Dealer Price$181.74 - $219.10
2016 Mazda CX-9L4-2.5L TurboService typeSpark Plug ReplacementYourMechanic Price$75.72Shop/Dealer Price$91.74 - $106.97
2009 Mazda CX-9V6-3.7LService typeSpark Plug ReplacementYourMechanic Price$163.68Shop/Dealer Price$198.69 - $238.26
2007 Mazda CX-9V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$163.68Shop/Dealer Price$198.73 - $238.34
2012 Mazda CX-9V6-3.7LService typeSpark Plug ReplacementYourMechanic Price$149.68Shop/Dealer Price$181.76 - $219.13
2015 Mazda CX-9V6-3.7LService typeSpark Plug ReplacementYourMechanic Price$152.44Shop/Dealer Price$185.18 - $224.60
2008 Mazda CX-9V6-3.7LService typeSpark Plug ReplacementYourMechanic Price$163.68Shop/Dealer Price$198.81 - $238.48
2017 Mazda CX-9L4-2.5L TurboService typeSpark Plug ReplacementYourMechanic Price$75.72Shop/Dealer Price$91.74 - $106.96
Show example Mazda CX-9 Spark Plug Replacement prices

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