STIHL Trimmer Service Kit 4137 is designed to provide hassle- maintenance for a variety of STIHL trimmer models, ensuring optimal performance and reliability. This comprehensive kit includes an air filter, fuel filter, and spark plug essential components for keeping your trimmer running efficiently. Some kits may also include a spark-arresting screen for added safety. Compatible with models such as BG 75, FS 75, FS 80, FS 85, KM 85, and HT 75, this service kit is a convenient and effective way to perform routine maintenance and extend the life of your equipment. Regular of these vital parts ensures consistent performance and reduces downtime. Model Number: 4137 007 1800