The Stihl 11286403205 is a genuine OEM oil pump designed for various Stihl chainsaw models. This essential component ensures consistent and reliable lubrication of the saw chain and guide bar, critical for smooth operation and extended tool life. Manufactured to Stihl's high standards, it provides precise oil delivery, preventing premature wear and maintaining cutting efficiency. Replace your worn or damaged oil pump with this authentic Stihl part to restore your chainsaw's optimal performance.