STIHL Trimmer Service Kit 4140 is designed to make maintenance simple and efficient for a variety of compatible trimmer models. This all-in-one kit includes essential components such as an air filter, fuel filter, and spark plug, with some versions also featuring a spark-arresting screen. It is compatible with popular models like FS 45, FS 46, FS 55, HL 45, KM 55, and HT 75, providing everything needed for routine upkeep. Regular of these parts helps keep your trimmer running smoothly and reliably, ensuring optimal performance. With the STIHL Trimmer Service Kit 4140, you can enjoy hassle- maintenance and extend the life of your equipment. Model Number: 4140 007 1800