Spark Plugs

When you turn the key in your vehicle ’s ignition switch, it begins a long and complicated process that eventually results in your engine starting up. Along the process, there are a massive number of components required to work properly, and some components even rely on others to work, so many problems can be caused by even the simplest problems. One of the parts required in this process is the spark plug.

The process we spoke of earlier results in the fuel from your fuel tank being pumped into a cylinder, provided with an ignition source and then burnt until it becomes the power to turn the wheels. This ignition source is a spark and, as you might have guessed, this spark comes from one spark plug in each cylinder. When it is provided with power from the distributor or ignition coil, it will instantly spark and cause the cylinder to 'fire' at exactly the right time.

The spark plug is a small component because it needs to be able to fit inside a relatively small cylinder. It is long, like a pencil, with a 'screw type' terminal at one end where it can be screwed in and fitted securely so it does not go anywhere under the serious vibrations of the engine. The filament at the other end is a simple component that turns electricity into a spark of flame, and this flame will ignite the fuel when it is pumped into the cylinder at exactly the same time.

While it is a relatively simple component without the complexity of some others, there are still problems that can occur. Its biggest problem is time, and after a period, it will become damaged simply by wear and tear. The damage mostly occurs to the sparking filament, and will prevent it from being able to spark so the fuel cannot be burnt and power cannot be supplied. Other issues can happen with the spark plug wires, or the internals inside the spark plug, which can all be affected by the heat and vibrations.

When one or more of these problems does occur, there are some symptoms to show you that you need to begin looking for more spark plugs. Symptoms include things like a rough idle, and it can begin to get rougher and rougher when it starts with one broken spark plug and ends with more than one. If the timing of the plug is out by the tiniest fraction, you can see something called 'pre-ignition,' which means the engine continues running after you turn the key to 'off,' or the engine simply will not start because no fuel can be burnt.

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MSD 34565
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MSD 34565 Spark Plug Boot Multi-Angle 10 pc.

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MSD 34515
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MSD 34515 Spark Plug Boot 90 deg. Spark Plug Style 10 pc.

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GRANATELLI MOTORSPORTS 28-1629S
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GRANATELLI MOTORSPORTS 28-1629S Spark Plug Wire

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DENSO IK22
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DENSO IK22 Spark Plug Iridium Power Stock # 5310

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GRANATELLI MOTORSPORTS 28-1545S
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GRANATELLI MOTORSPORTS 28-1545S Spark Plug Wire

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GRANATELLI MOTORSPORTS 28-1811S
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GRANATELLI MOTORSPORTS 28-1811S Spark Plug Wire

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MSD 3411
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MSD 3411 Spark Plug Boot Protector Pro-Heat Guard 25 ft. Roll

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MSD 7555
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MSD 7555 Spark Plug Wire Adapter Sync Kit

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NGK U6026
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NGK U6026 COP (Rail) Ignition Coil Assy. U6 Type

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$157.64

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MSD 34759
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MSD 34759 Pro Stock Hemi Tube

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MSD 34525
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MSD 34525 Spark Plug Boot 90 deg. Socket Cap 3 pc.

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MSD 3476
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MSD 3476 Spark Plug Wire Tubes Pro Stock Chrysler/Ford Hemi

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NGK U6032
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NGK U6032 COP (Rail) Ignition Coil Assy. U6 Type

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$148.13

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$128.81

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PROFORM 141-639
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Proform 141-639 Linear Spark Plug Wire Loom

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MSD 34514
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MSD 34514 Boots, 90 Degree Logo Spark Plug, Gray Silicone 50EA

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MSD 34564
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MSD 34564 Boots, Straight, Logo Gray Silicone, 50EA

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MSD 34753
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MSD 34753 Pro Stock Hemi Tube

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NGK U5251
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NGK U5251 COP (Pencil Type) Ignition Coil U5 Type

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$98.46

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MSD 34555
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MSD 34555 Spark Plug Boot HEI Style w/Nipple 10 pc.

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PROFORM 141-714
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PROFORM 141-714 Spark Plug Wire Holder

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PROFORM 141-638
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Proform 141-638 Linear Spark Plug Wire Loom

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MSD 3412
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MSD 3412 Spark Plug Boot Protector Pro-Boot Guard 6 ft. Roll

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MSD 34615
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MSD 34615 Spark Plug Terminal 90 deg. Plug Style Dual Crimp 3 pc.

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Injen IC1890P
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Injen IC1890P Aluminum Spark Plug Wire Cover

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$97.70

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NGK U5029
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NGK U5029 COP Ignition Coil U5 Type

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