This STIHL Service Kit is perfect for maintaining your FS89, FS91, FS111, FR111, FC91, FC96, FC111, KM91, KM111, HT102, and HT103 models. This OEM kit includes everything you'll need to tune-up your brush cutter, including a 4-stroke engine type, without worrying about the condition of the parts. With this kit, you can ensure that your equipment will continue to operate at its best performance without any issues.