The Craftsman 590454 Engine Magneto Armature helps provide reliable ignition performance for consistent engine operation. This replacement magneto armature is designed to generate the electrical current needed to produce a spark at the spark plug as the engine flywheel rotates. It works by converting the flywheel's magnetic energy into high-voltage electricity, enabling efficient fuel... https://www.wholetoolbox.com/craftsman-590454-engine-magneto-armature/590454.html