Spark Plug Replacement Estimate for Infiniti I35

Infiniti I35 Spark Plug Replacement costs $201 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$200 to $227
Labor: $189 -$216
Parts: $11
Average Dealer price
$273
Average Shop price
$239
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CarServiceYourMechanic PriceShop/Dealer Price
2003 Infiniti I35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$200.65Shop/Dealer Price$272.17 - $332.37
2002 Infiniti I35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$200.44Shop/Dealer Price$272.23 - $332.51
2004 Infiniti I35V6-3.5LService typeSpark Plug ReplacementYourMechanic Price$200.44Shop/Dealer Price$272.02 - $332.14
Show example Infiniti I35 Spark Plug Replacement prices

Parts required for a Infiniti I35 Spark Plug Replacement

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Richard
16 years of experience
Richard was knowledgeable, professional and very friendly. I am sure I will be using your mechanic in the future! Thanks you.
2005 INFINITI G35 - COOLANT IS LEAKING INSPECTION
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12 years of experience
Jose provided exception service. He was very knowledgeable and knew how to diagnose my car problem quickly and gave me plenty of good car maintenance tips. He took his time and did a quality job. I was a little skeptical using yourmechanic.com for the first time but I will definitely be using it more often given how positive my first experience was.
1999 INFINITI G20 - CAR IS NOT STARTING INSPECTION
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37 years of experience
Tom was excellent. He was very communicative, and did exactly what he said he was going to do. There was some trouble finding the car (it was parked in a lot) and he spent 15 minutes looking for it before finding it, the whole time being gracious about the situation. I would recommend him to anyone.
2009 INFINITI G37 - PRE-PURCHASE CAR INSPECTION
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Robert
27 years of experience
Rob was polite and professional, but relaxed and friendly. Told me about his experience and why he is working for Your Mechanic. Showed me how the brakepads are measured and showed me the worn grooves in the rotors. He was efficient and was a good sport about having to work in the sun on a hot day. Two thumbs up!!
2003 INFINITI I35 - BRAKE PADS REPLACEMENT (REAR)
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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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