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
$104 to $490
Labor: $91 -$472
Parts: $13 -$18
Average Dealer price
$146 to 585
Average Shop price
$124 to 514
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CarServiceYourMechanic PriceShop/Dealer Price
1999 Infiniti Q45V8-4.1LService typeSpark Plug ReplacementYourMechanic Price$104.60Shop/Dealer Price$141.03 - $176.01
1998 Infiniti Q45V8-4.1LService typeSpark Plug ReplacementYourMechanic Price$104.35Shop/Dealer Price$140.87 - $175.78
1993 Infiniti Q45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$243.08Shop/Dealer Price$329.29 - $404.68
2006 Infiniti Q45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$104.35Shop/Dealer Price$140.82 - $175.68
2000 Infiniti Q45V8-4.1LService typeSpark Plug ReplacementYourMechanic Price$104.60Shop/Dealer Price$141.06 - $176.05
2001 Infiniti Q45V8-4.1LService typeSpark Plug ReplacementYourMechanic Price$104.60Shop/Dealer Price$141.02 - $175.99
2004 Infiniti Q45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$104.66Shop/Dealer Price$141.31 - $176.48
1996 Infiniti Q45V8-4.5LService typeSpark Plug ReplacementYourMechanic Price$426.35Shop/Dealer Price$580.28 - $703.24
Show example Infiniti Q45 Spark Plug Replacement prices
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Parts required for a Infiniti Q45 Spark Plug Replacement

$13 to $18

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Real customer reviews from Infiniti owners like you.

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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212 reviews
Enrique
16 years of experience
Excellent. Rick showed up early and was very friendly and courteous. He was not aggressive in upselling me on additional services which is important to me. He only made recommendations which were actually crucial. He set an appointment for me but told me it was optional and that I could cancel, which I did due to financial restraints at the moment, but I will be booking with him in the near future for the recommended services.
2007 INFINITI G35 - OIL CHANGE
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126 reviews
Tyrone
6 years of experience
Great mechanic. He was very organized and knew what to do in short time.
2000 INFINITI I30 - CAR IS NOT STARTING INSPECTION
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13 reviews
Oreste
9 years of experience
Great
2009 INFINITI G37 - OIL CHANGE
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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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