This is a genuine Stihl 11376402002 sprocket, designed as an authentic OEM replacement part for Stihl MS 201 series chainsaws. Featuring a 1/4-inch pitch (6.35 mm) and 8 teeth, this sprocket is crucial for the proper functioning of the chainsaw, engaging with the chain to ensure smooth power transmission from the engine. Regular replacement of worn sprockets maintains optimal cutting efficiency and extends the life of both the chain and guide bar, preventing poor chain performance caused by friction and continuous use.