The Stihl SV11146403200 is a genuine OEM oil pump designed for various Stihl chainsaw models. This essential component ensures proper lubrication of the saw chain and guide bar, critical for efficient cutting performance and extending the lifespan of the chainsaw. It is compatible with Stihl MS 170, MS 180, MS 171, MS 181, and MS 211 series chainsaws. Replacing a worn or damaged oil pump with this original Stihl part restores reliable oil flow and maintains the chainsaw's operational integrity.