Spark Plug Replacement at your home or office.

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Spark Plug Replacement Estimate for Infiniti FX35

Infiniti FX35 Spark Plug Replacement costs $157 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$144 to $192
Labor: $133 -$176
Parts: $11 -$16
Average Dealer price
$199 to 238
Average Shop price
$172 to 204
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
2008 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$148.24Shop/Dealer Price$200.33 - $247.97
2010 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$171.44Shop/Dealer Price$231.97 - $287.18
2007 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$147.96Shop/Dealer Price$200.06 - $247.55
2012 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$171.44Shop/Dealer Price$231.88 - $287.02
2005 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$148.24Shop/Dealer Price$200.37 - $248.04
2011 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$171.77Shop/Dealer Price$232.10 - $287.34
2003 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$144.77Shop/Dealer Price$196.28 - $241.54
2004 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$147.96Shop/Dealer Price$200.20 - $247.79
Show example Infiniti FX35 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 Infiniti mechanics

Real customer reviews from Infiniti owners like you.

471 reviews
Peter
38 years of experience
Peter was terrific, knowledgable, prompt and professional. He answered my questions, explained things thoroughly and made me feel valued as a customer. I will return to him for all my work through YourMechanic.
2002 INFINITI QX4 - CAR AC COMPRESSOR REPLACEMENT
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286 reviews
Dave
18 years of experience
2004 INFINITI FX35 - AMAZON LOCAL BRAKE PADS PACKAGE
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110 reviews
Joel
16 years of experience
Friendly, on time and really helpful. Did an inspection of my car and explained what needed to be done and what didn't need to be done. Will be hiring him in the near future to get other work complete. Highly recommended!
2003 INFINITI FX35 - CAMSHAFT POSITION SENSOR REPLACEMENT
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61 reviews
Cary
22 years of experience
Excellent experience!! Cary arrived early and once he got there just took care of everything. All I did was toss him my keys and signed my name. Very pleasant working with him. Would recommend him, for sure!!
2003 INFINITI G35 - OIL CHANGE
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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
2008 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$148.24Shop/Dealer Price$200.33 - $247.97
2010 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$171.44Shop/Dealer Price$231.97 - $287.18
2007 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$147.96Shop/Dealer Price$200.06 - $247.55
2012 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$171.44Shop/Dealer Price$231.88 - $287.02
2005 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$148.24Shop/Dealer Price$200.37 - $248.04
2011 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$171.77Shop/Dealer Price$232.10 - $287.34
2003 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$144.77Shop/Dealer Price$196.28 - $241.54
2004 Infiniti FX35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$147.96Shop/Dealer Price$200.20 - $247.79
Show example Infiniti FX35 Spark Plug Replacement prices

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