STIHL Trimmer Service Kit 4180/4182 is designed to meet the maintenance needs of a variety of models, including FC 91, FC 96, FC 111, FS 91, FS 111, FS 111 RX, KM 91, KM 111, HT 102, and HT 103. This carefully assembled kit includes essential components such as an air filter, fuel filter, and spark plug, which are crucial for keeping your equipment running at peak performance. Some kits in this series may also come with a spark arresting screen, providing everything necessary for thorough and hassle- maintenance. Specifically tailored to the unique requirements of these trimmer and equipment models, this service kit makes it easy to maintain your tools and ensure optimal operation. Model Number: 4180 007 1042