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
2004 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$172.67Shop/Dealer Price$234.04 - $286.62
2007 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.46Shop/Dealer Price$109.85 - $137.60
2006 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.46Shop/Dealer Price$109.78 - $137.46
2009 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.46Shop/Dealer Price$109.81 - $137.52
2003 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$172.67Shop/Dealer Price$234.08 - $286.70
2008 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.67Shop/Dealer Price$110.00 - $137.80
2010 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.73Shop/Dealer Price$110.22 - $138.19
Show example Infiniti M45 Spark Plug Replacement prices

Parts required for a Infiniti M45 Spark Plug Replacement

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432 reviews
Patrick
22 years of experience
Patrick was awesome! He was on time, plus it was a very quick and pleasant experience. I'm so grateful for his help :)
2008 INFINITI G37 - CAR BATTERY REPLACEMENT
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341 reviews
Honorio
14 years of experience
I initial booked an appointment to have the starter replaced. I thought "clicking sound" when turning over the car was a sure sign that it was an issue with the starter. However, Honorio insisted checking the battery as the bad battery could cause the starter to make that sound. I was skeptical as the battery was only a year old, but sure enough, it turned out to the battery. I appreciate he took his time to educate me on the a batter, starter, and the electrical system in general. He saved me money from not making unneeded repairs! I would recommend him to anyone and will be booking him for future services. From my previous experience at various shops, a honest, trustworthy, and knowledgable mechanic is hard to find!
2004 INFINITI G35 - OTHER INSPECTIONS
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277 reviews
Trung
7 years of experience
Trung was terrific - arrived 15min EARLY, diagnosed my car issues quickly and efficiently, and provided an excellent quote. I would no doubt work with him again and recommend him to my friends.
2010 INFINITI G37 - OIL CHANGE
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71 reviews
Blake
8 years of experience
Excellent! Was prompt, very knowledgable and professional. Even went the extra step and went to pick up and fix my issue when I had only booked him for a diagnosis. Did a second quote, paid, done. Very efficient and friendly. Will 100% use him again for my future car service needs.
2003 INFINITI G35 - OTHER INSPECTIONS
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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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