Spark Plug Replacement Cost
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RepairPrice Estimates are based on the estimated time for the repair, labor rates charged by trained automotive professionals, and prices for quality parts.
These estimates are designed to show a range of fair prices, instead of a single price, because there is more than one part that is appropriate to use in each repair, and more than a single mechanic who is qualified to do the repair.
Each estimate is customized for your vehicle and geographic area. Estimates exclude applicable taxes, diagnostic charges and disposal fees.
RepairPal Fair Price Estimate (National Average)
To prevent ignition misfires and Check Engine Light problems, we recommend using only high-quality spark plugs, and preferably spark plugs from the OEM.
Spark plugs have different ratings and it's important that the correct type are used.
Spark plug terminals wear down over time and can lead to engine misfires. At minimum, they need to be replaced at the mileage specified by the vehicle manufacturer.
Failing spark plugs can cause the engine to run rough and misfire, which can trigger the Check Engine Light. Continuing to drive under these conditions can damage the catalytic converter.