The Kohler 1758402-S Engine Spark Plug Assembly Module supports reliable ignition by providing the connection and components needed to deliver electrical energy to the spark plug. It works within the engine's ignition system to help produce the spark required to ignite the air-fuel mixture in the combustion chamber. Proper operation supports dependable starting, consistent combustion,... https://www.wholetoolbox.com/kohler-1758402-s-engine-spark-plug-assembly-module/1758402-S.html