The Stihl SV11186402001 is a genuine OEM .325 pitch, 7-tooth rim sprocket designed for reliable power transmission in a range of Stihl chainsaws. This essential component ensures smooth chain operation and efficient cutting performance. It is a direct replacement for the original part, maintaining the high standards of Stihl quality and durability. Compatible with numerous Stihl chainsaw models, including MS 260, MS 261, MS 270, MS 271, MS 280, MS 290, MS 361, MS 362, MS 390, 026, 029, 034, 036, and 039.