Service Kit Air Filter, Fuel Filter, Spark Plug fits Stihl FS38, FS55, KM55 FC55, FS38, FS38 2-Mix, FS45, FS45C, FS46C, FS55, FS55 2-Mix, FS55C, FS55R, FS55R 2-Mix, FS55RC, FS55T, HL45, KM55, KM55C, KM55R, KM55RC Kit contains; Air filter Fuel filter Spark plug (As shown in Photo BPMR7A) Please check this is the correct spark plug for your machine before ordering