This is a genuine STIHL OEM cylinder and piston kit – part number 4180 020 1205.
It's brand new and compatible with a ton of Stihl models: FC110, FC100, FS100RX, FS110, FS110R, FS110RX, KM110R, HT100, HT101, HL100K, and HL100.
If your Stihl trimmer or hedge cutter has lost compression or is hard to start, this rebuild kit gives you the cylinder and piston you need to get it running like new.
OEM quality, so you know it fits and lasts.
