The Stihl 41101602900 Coupling Drum is an authentic OEM replacement part designed for various Stihl trimmers and brushcutters. This crucial component of the clutch assembly facilitates the engagement and disengagement of power from the engine to the cutting attachment. Made from durable metal, it ensures proper clutch function and efficient operation of your Stihl equipment. Replacing a worn or damaged coupling drum helps prevent clutch slippage and ensures the cutting attachment engages correctly.