Ngk Platinum Spark Plug Spark Plugs for Mercedes Benz A004159190326 F8dpp33, A004159190326, F8dpp33

NGK Platinum Spark Plug Spark Plugs for Mercedes Benz A004159190326 F8DPP33


Definition : A spark plug (sometimes, in British English, a sparking plug,and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within the engine.


Constructures and Functions : A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator. The central electrode, which may contain a resistor, is connected by a heavily insulated wire to the output terminal of an ignition coil or magneto. The spark plug's metal shell is screwed into the engine's cylinder head and thus electrically grounded. The central electrode protrudes through the porcelain insulator into the combustion chamber, forming one or more spark gaps between the inner end of the central electrode and usually one or more protuberances or structures attached to the inner end of the threaded shell and designated the side, earth, or ground electrode(s)


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Each pieces in a white box,then 200pcs in a small carton normally!



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