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
2009 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.65Shop/Dealer Price$109.98 - $137.77
2007 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.44Shop/Dealer Price$109.83 - $137.55
2008 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.44Shop/Dealer Price$109.75 - $137.42
2004 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$172.44Shop/Dealer Price$233.92 - $286.47
2003 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$172.65Shop/Dealer Price$234.05 - $286.66
2010 Infiniti M45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$81.65Shop/Dealer Price$109.97 - $137.76
2006 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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248 reviews
Stefan
12 years of experience
Stefan is honest, reliable, punctual, knowledgeable, and competent. It can't get better than that! My car is a pain to work with but Stefan never gets rattled. I hope you guys pay him well!
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153 reviews
Jose
10 years of experience
Nice and polite.
1998 INFINITI QX4 - ALTERNATOR / SERPENTINE BELT REPLACEMENT
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110 reviews
Joel
16 years of experience
Joel showed up early and completed the work in less time than I thought it would take. He is very knowledgable, courteous, and polite. Thanks Joel!
2006 INFINITI FX35 - FUEL PUMP REPLACEMENT
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Steven
16 years of experience
Great service! Thanks Steven!
2003 INFINITI M45 - VALVE COVER GASKET 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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