Replacement: Replaces part number 41401627900, designed for exact fit and function on compatible trimmer models. Model Compatibility: Compatible with Stihl FS38, FS45, FS46, FS55, FS55R, and FC55, ideal for restoring proper clutch operation. Reliable Performance: Maintains proper clutch tension, ensuring smooth power transfer and reducing wear. Durable Material: Made from durable material for long-lasting tension and resistance to fatigue or deformation. Pack: Includes 2 clutch springs, perfect for spares or servicing multiple tools., Manufacturer: LT Easiyl