The STIHL 41101602901 is a genuine OEM coupling drum, also known as a clutch drum, designed for a wide range of STIHL power tools. This essential component ensures proper power transfer from the engine to the cutting attachment. It features an inner diameter of 78 mm, an outer diameter of 80 mm, and a height of 35 mm. This durable part is compatible with numerous STIHL models including FS 75, FS 80, FS 85, FC 75, FC 85, HL 75, HT 70, HT 75, KM 85, and many others, ensuring reliable performance and a precise fit for your equipment.