Fits Models: STIHL FS36, FS40, FS44, FS38, FS45, FS46, FS40, FS50, FS55, FS55C, FS55R, FS56, FS56C, FS56R, FS83, FS83T, BG56, HS45, BG66, BG86, BR45C, BR200, SH55, SH85, SH56, SH86, BG50, FS70C, FS70R, FS70RC, HT56 C, HT73, KM55, KM55C, KM55R, KM55RC, KM56C, KM56RC, MM 55, MM 55 C MultiSystem, MM 56 MultiSystem, MM 55-Z MultiSystem, FC 55 DZ, FC 56, FC 70, FC 70 C, FC 73, FC 83, SR 200, SR 200-D, SR 200-Z, BT 45, HL45, HL56K, HL73, HL73K, HS52