The STIHL 11234001301 Ignition Module, also referred to as an ignition coil, is a genuine OEM replacement part engineered for various STIHL chainsaws and power equipment models including 021, 023, 025, MS 210, MS 230, and MS 250. This essential component ensures reliable engine starting and consistent spark delivery, which is crucial for optimal engine performance and efficiency. It serves as a direct replacement for older or malfunctioning ignition systems, effectively restoring proper engine function.