The STIHL 41800201206 is a genuine OEM cylinder with a 43 mm piston, designed for various STIHL power tools. This essential engine component ensures optimal performance and durability. It is a direct replacement part for models including STIHL FS 130, FS 131, FS 310, FS 311, FR 130 T, FR 131 T, KM 130, KM 130 R, KM 131, KM 131 R, HT 130, HT 131, HT 132, HT 133, HL 100, HL 100 K, HL 101, HL 102, HL 103, HL 104, HL 105, HL 106, HL 107, SP 90, SP 90 T, FC 90, FC 95, FC 100, FC 110, FH 75, FH 130, FH 131, KW 85, KW 130, KW 131, and others. Replacing with this original part maintains the integrity and efficiency of your STIHL equipment.