Spark Plug

Definition of Spark Plug as it relates to Automotive, Automotive Engine, Power Steering Pump

A spark plug is an essential component in an automotive engine's ignition system, responsible for generating the spark that ignites the air-fuel mixture in the combustion chamber. It typically consists of a central electrode surrounded by a ceramic insulator and a metal shell, with a threaded base that screws into the engine's cylinder head. Spark plugs play a critical role in ensuring optimal engine performance, fuel efficiency, and emissions control.

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