1OE Number: The referencing OE number of this ignition coil module is 1135 400 1300, which is molded and designed depend on the original data. 2Fitment: The engine ignition coil is a replacement for Stihl MS361 MS341, please check your chainsaw model before ordering. 3Function: Improve combustion efficiency and enhance electrical performance. Provides a higher intensity spark with faster recovery and response, increased ignition energy intensity. 4Premium Material: The ignition coil is made of heavy duty Abs which is sturdy and durable, helps to provide easy starting and smooth operating. 5Easy Installation: You need to remove the original broke or damaged igniter inside the chainsaw and install the ignition coil in the same way.