"The MTD BS-398811 Armature MOD is a vital part for different small engine uses, offering spark for outdoor power devices such as lawnmowers and snowblowers. It creates that spark, which makes the fuel-air mixture in the engine to burn uniformly to give the required power. This armature is made from high quality materials and thus will ensure that your equipment lasts longer and its p... https://www.wholetoolbox.com/mtd-bs-398811-armature-mod