Spark Plug Replacement Estimate for Infiniti M45

Infiniti M45 Spark Plug Replacement costs $107 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$81 to $195
Labor: $70 -$184
Parts: $11
Average Dealer price
$115 to 236
Average Shop price
$97 to 205
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CarServiceYourMechanic PriceShop/Dealer Price
2003 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$172.65Shop/Dealer Price$234.01 - $286.58
2006 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.44Shop/Dealer Price$109.83 - $137.55
2009 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.44Shop/Dealer Price$109.75 - $137.42
2010 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.44Shop/Dealer Price$109.79 - $137.48
2004 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$172.65Shop/Dealer Price$234.05 - $286.66
2007 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.65Shop/Dealer Price$109.97 - $137.76
2008 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.71Shop/Dealer Price$110.20 - $138.15
Show example Infiniti M45 Spark Plug Replacement prices

Parts required for a Infiniti M45 Spark Plug Replacement

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445 reviews
Chris
17 years of experience
Chris was awesome! Arrived on time, was extremely knowledgeable and friendly! Quick and easy job! Would recommend him to everyone!!!
2011 INFINITI G37 - DEFROSTER IS NOT WORKING INSPECTION
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256 reviews
Jay
32 years of experience
Jay is a very proficient mechanic. He arrived slightly ahead of schedule ready to do the job at hand. He was thorough and pleasant to work with. I look forward to seeing him again with other projects. I would not hesitate to have him back to work on my vehicles.
2004 INFINITI FX35 - EXTERIOR DOOR HANDLE REPLACEMENT (PASSENGER SIDE FRONT)
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212 reviews
Enrique
16 years of experience
Great service!
2008 INFINITI EX35 - CAR IS OVERHEATING INSPECTION
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174 reviews
Scott
31 years of experience
Another great experience with Scott! He arrived early, was polite as always and completed the work on the time. Not to mention, I saved $600 on the radiator replacement by purchasing parts on my own and using Your Mechanic!!
2006 INFINITI QX56 - CAR RADIATOR REPLACEMENT
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All about Spark Plug Replacement

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.

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