CHAIN SPROCKET

- Fit STIHL 017, 018, 021, 023, 025, MS170, MS180, MS210, MS250 chainsaw models.
- Replace STIHL part number: #1123 640 2005
- CLUTCH SPUR SPROCKET : Pitch 3/8", Picco 6 teeth, Item includes: Sprocket bearing

SKU: S23486
Manufacturer: STIHL, INC.
Manufacturer Part #: 1123 640 2003