Spark Plug Replacement Estimate for Infiniti Q45

Infiniti Q45 Spark Plug Replacement costs $183 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$102 to $488
Labor: $91 -$472
Parts: $11 -$16
Average Dealer price
$143 to 582
Average Shop price
$122 to 512
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CarServiceYourMechanic PriceShop/Dealer Price
2002 Infiniti Q45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$102.65Shop/Dealer Price$138.60 - $172.11
2001 Infiniti Q45V8-4.1LService typeSpark Plug ReplacementYourMechanic Price$106.26Shop/Dealer Price$143.26 - $179.60
2003 Infiniti Q45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$102.44Shop/Dealer Price$138.38 - $171.78
2006 Infiniti Q45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$102.44Shop/Dealer Price$138.43 - $171.86
1998 Infiniti Q45V8-4.1LService typeSpark Plug ReplacementYourMechanic Price$106.54Shop/Dealer Price$143.49 - $179.94
1992 Infiniti Q45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$241.75Shop/Dealer Price$327.47 - $401.75
2004 Infiniti Q45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$102.71Shop/Dealer Price$138.86 - $172.57
1993 Infiniti Q45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$241.42Shop/Dealer Price$327.46 - $401.78
Show example Infiniti Q45 Spark Plug Replacement prices

Parts required for a Infiniti Q45 Spark Plug Replacement

$11 to $16

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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.

Spark Plug Replacement Estimates for Popular Infiniti Models