Stems 085-6217 Pro Spur Sprocket. 0.3937" crank diameter, 0.325" chainsaw pitch, 7 teeth, bearing included. Replaces OEM Carlton 6-100961X, GB ST305-J7N, Oregon Ref. 106657X, Ref No SST305-27N, Stihl 1123 640 2015, 1123 640 2074. Fits models Stihl 025, MS250 and MS250C.
- Make sure this fits by entering your model number.
- 0.3937" crank diameter
- 0.325" chainsaw pitch
- 7 teeth
- Bearing included
This fits your .

