The 23739 Spark Plug by Maxon is an ignition component designed to initiate combustion in gas-fired HVAC and industrial heating equipment. It operates by generating a high-voltage electrical spark that ignites the air-fuel mixture within the burner assembly. Commonly used in gas burners, industrial furnaces, and commercial heating systems, it ensures reliable ignition performance. https://www.partshnc.com/23739-maxon-maxon-spark-plug