Spark Plugs

A spark plug is a critical engine component that provides the spark that ignites the air-fuel mixture that drives an engine. A spark plug operates by directing electrical current to flow through a centre electrode, forming a spark across an electrode (or air) gap, completing the circuit to a ground electrode. The centre electrode is surrounded by a ceramic insulator which is non-conductive preventing current leakage and ensuring electricity flows in the desired direction.

A spark plug functions in the combustion chamber of an engine under severe condition. For example, the temperature of the combustion chamber reaches about 2,500˚C and the pressure reaches 5MPa. Additionally , a spark plug is exposed to sudden changes temperature and pressure , from the high temperature of burned gases to the relatively low temperatures of the air/fuel mixture. Moreover it must endure high voltages , mechanical vibrations and the chemical corrosion of the combustion gases.


OEM Spark Plugs


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Idirium IX

Ultimate Performance Spark Plugs

Racing Spark Plugs

Racing Performance Spark Plugs

Laser Platinum

Premium Spark Plugs

Laser Idirium

Premium Spark Plugs


High Performance Spark Plugs

DFE Idirium

Double Fine Electrode
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