This genuine Stihl filler cap is designed as a direct replacement for the fuel tank cap on many Stihl petrol-powered machines, including hedge trimmers such as the HS 81 and HS 86. Manufactured from fuel-resistant polymer, it is built for durability and long-term use while providing a secure seal to help prevent leaks, vapour loss, and fuel contamination. The textured, easy-grip design allows for convenient tightening and removal by hand, even when wearing gloves, making it ideal for replacing a worn, damaged, or missing cap.