General description Compatible with STIHL FS38, FS45, FS46, FS55, and KM55, this carburetor kit is designed to replace your old carburetor and improve engine performance. It helps in mixing fuel and air efficiently, ensuring your engine runs smoothly while minimizing oil waste. Technical specifications Includes: 1 x Carburetor 2 x Gaskets 1 x Spark Plug 2 x Caps 1 x Sponge 1 x Filter 1 x Hose Installation Easy to install: just remove the old carburetor and install the new one. The whole process takes about 10 minutes.