Genuine STIHL OEM quick-tension chain sprocket cover, part number 11236401700 (1123 640 1700). Designed for chainsaws MS170, MS180, MS210, MS230, MS250 and their C/BE variants. Strong, impact-resistant cover with integrated tool-free chain tensioning system.

✅ Genuine STIHL OEM part for perfect fit and reliable quality
✅ Fits MS170, MS180, MS210, MS230, MS250 and earlier 017, 018, 021, 023, 025 models
✅ Quick-tensioning system allows fast, tool-free chain adjustment
✅ Durable, impact-resistant polymer construction for long service life
✅ Protects sprocket, clutch area, and guide bar alignment during operation