The EMSea Clutch Drum with CirClip 4180-160-2900 is designed for Stihl multi-stroke engines, specifically the FS90, FS110, FS130, and HL100 models. This clutch drum uses CirClip technology, ensuring efficient engagement and disengagement of the clutch disc, leading to improved engine performance and reduced wear on the clutch system. The durable construction and high-quality materials used in the creation of this clutch drum make it suitable for long-lasting use, even in extreme conditions. With the CirClip 4180-160-2900, you can rest assured that your Stihl engine will perform consistently and reliably, providing you with years of reliable service.