The Briggs & Stratton 820037 Engine Ignition Coil helps generate the electrical spark needed for reliable engine starting and consistent operation. Designed as a replacement ignition coil, it works with the engine’s ignition system to produce the high-voltage output required by the spark plug. Replacing a worn or faulty coil can help address starting difficulties, intermittent ignitio... https://www.wholetoolbox.com/briggs-stratton-820037-engine-ignition-coil/820037.html