OEM Spark Plugs

In your vehicle’s engine, you need a spark plug to start your vehicle. The spark plug is a small electrical device inside the engine responsible for igniting a compressed mixture of air and fuel. Inside the combustion chamber, a spark ignites the mixture. This ignition results in a controlled explosion. Gas expands inside the chamber, moving the pistons, and running your car.

When your spark plug doesn't work at all, then you won’t be able to start your engine. At minimum, a faulty spark plug causes an engine to misfire. Often, spark plugs wear out due to many reasons, such as engine oil flowing into the combustion chamber or repeated engine overheating. A dirty air filter also causes black dry soot on the electrode, which is carbon buildup. A lack of calibration also causes a spark plug to erode. A correct gap between the plug’s center and the side electrodes is needed.

What Are Signs of Spark Plugs Going Bad?

If you suspect that your spark plug is faulty, here are things you should look out for:

  • Difficulty in starting the engine
  • Rough idling and vibrations
  • Engine misfiring, leading to lower acceleration or shaking
  • Reduced fuel efficiency
  • Order Genuine Spark Plugs Online at Discounted Prices

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    19363518 - : Conventional Spark Plug for GM Image

    Conventional Spark Plug

    Black Onyx coating helps reduce corrosion Copper core provides great heat transfer and helps maximize plug durability In...
    MSRP $4.50
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    19185432 - : Iridium Spark Plug for GM Image

    Iridium Spark Plug

    2.4L. 1.8l with ho. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium...
    MSRP $14.28
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    12571165 - : Iridium Spark Plug for GM Image

    Iridium Spark Plug

    6.2L with supercharged. 6.2L with supercharger. Vendor:acdelco. Vendor #41-104. 7.0L. Coupe, 6.2L. Iridium is the latest in spark plug...
    MSRP $18.96
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    12681664 - : Iridium Spark Plug for GM Image

    Iridium Spark Plug

    Vendor:acdelco. Vendor #41-101. 3.4L. 3.5L. Iridium. 4.3L. Platinum. Vendor #41-921. 3.1L. 3.8L, without supercharged. Iridium is the...
    MSRP $16.88
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    12681661 - : Iridium Spark Plug for GM Image

    Iridium Spark Plug

    Vendor:acdelco. Vendor #41-105. Coupe,. 2.2L. 2003-06. Iridium is the latest in spark plug technology and is an exact replacement for...
    MSRP $17.38
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    19354423 - : Conventional Spark Plug for GM Image

    Conventional Spark Plug

    Optional. Vendor:acdelco. Vendor #R43XLS. Black Onyx coating helps reduce corrosion Copper core provides great heat transfer and helps...
    MSRP $4.58
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    19351561 - : Spark Plug Wire for GM Image

    Spark Plug Wire

    Cylinder 6.
    MSRP $36.28
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    12192133 - : Spark Plug Wire for GM Image

    Spark Plug Wire

    Coil Stamped 12558693. All models. 4.8l, 5.3l, 6.0l. 10.5 long. Hummer H2. 10.5 long. Durable to help transfer high voltage pulses...
    MSRP $29.34
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    21024467 - : Spark Plug Wire for GM Image

    Spark Plug Wire

    Cylinder 3. Black Composite Camshaft Cover.
    MSRP $17.42
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    19354416 - : Conventional Spark Plug for GM Image

    Conventional Spark Plug

    4.3L, 2003-2007. Optional. Vendor:acdelco. Standard. Vendor #R44LTS6. Black Onyx coating helps reduce corrosion Copper core provides...
    MSRP $4.36
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    12681659 - : Iridium Spark Plug for GM Image

    Iridium Spark Plug

    2.5L, 2.0L turbo, 2.0L turbo. Coupe, 2.0L turbo. Iridium is the latest in spark plug technology and is an exact replacement for...
    MSRP $16.88
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    12731653 - : Spark Plug Wire for GM Image

    Spark Plug Wire

    Express, savana. 4.8l. Caprice PPV. 6.0l. 6.2L without supercharger. 7.0L. Hummer H2. 10.5 long. Impala, Monte Carlo. 5.3l.
    MSRP $70.08
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