The replacement chain sprocket is also known as the Drive Sprocket is part of the Clutch Drum for the Stihl MS261 chainsaw. Genuine Stihl part OEM - 1141-640-2001 Also fits MS 271...
Replacement Stihl Chain Catcher to fit a number of models. Genuine Stihl Part OEM no - 11416567700 Fits Models MS 261, MS 271, MS 291 MSA 160 T, MSA 161...