The Stihl 11434001307 Ignition Module is an authentic OEM replacement part engineered to deliver consistent and reliable ignition for a wide range of Stihl MS series chainsaws. This essential component ensures precise engine timing and optimal spark delivery, which is crucial for efficient engine operation and dependable starting. It is compatible with Stihl chainsaw models including MS 261, MS 271, MS 291, MS 311, MS 362, MS 391, MS 441, MS 461, MS 661, and MS 881, as well as their various C-M, C-BE, and R variants.