Convert your STIHL chainsaw to run precision 1/4" pitch carving bars and chains with the genuine STIHL 1/4" 8-Tooth Chain Spur Sprocket (Part Number: 1123 640 2007 / 1123-640-2007). Engineered specifically to adapt standard drive systems to a 1/4" pitch configuration, this replacement spur sprocket ensures smooth power transfer, minimal cutting vibration, and proper chain engagement for detailed woodworking, timber sculpting, and fine pruning applications.
- Genuine STIHL Replacement Part: Official OEM drive spur sprocket (Part # 1123 640 2007 / 1123-640-2007) manufactured to precise factory engineering specifications.
- 1/4" Pitch, 8-Tooth Configuration: Designed specifically for converting standard chain drive setups to run specialized 1/4" pitch carving bars and narrow-kerf chains.
- Smooth Power Transfer: Precision-machined 8-tooth profile provides optimal chain engagement to minimize vibration during intricate detailed cutting.
- Durable Steel Construction: Built from heavy-duty, wear-resistant steel to withstand high-RPM cutting loads and extend drive system longevity.
- Extensive Model Compatibility: Fits an expanded range of legacy, current, and comfort-variant STIHL chainsaws including 017, 018, MS 170, MS 180, MS 241 C-M, and MS 251 series.
Product Specifications
| Brand: | STIHL |
| Product Type: | 1/4" 8-Tooth Spur Sprocket |
| Manufacturer Part Number: | 1123 640 2007 (1123-640-2007) |
| Chain Pitch: | 1/4" |
| Tooth Count: | 8 Tooth |
| Compatible STIHL Models: | 017, 017 C, 018, 018 C, MS 162, MS 170, MS 171, MS 172 C-E, MS 180, MS 180 C-B, MS 180 C-BE, MS 181, MS 181 C-BE, MS 182, MS 182 C-BE, MS 191 T, MS 212 C-BE, MS 231 C-BE, MS 241 C-M, MS 251, MS 251 C-BE |