Convert your STIHL chainsaw for precision carving and detail work with the official STIHL 1/4" Spur Sprocket Conversion Kit (Part Number: 1123 007 1029 / 1123-007-1029). Specially designed to adapt standard STIHL homeowners and mid-range chainsaws, this conversion kit transitions your drive system to a 1/4" pitch, 8-tooth spur sprocket configuration. Switching to a 1/4" pitch drive is a required upgrade to properly run STIHL carving bars, enabling fine, intricate cuts, reduced kickback risk, and smooth cutting performance ideal for wooden sculpture, timber shaping, and detailed arboriculture work.
Engineered for seamless installation, this complete STIHL OEM conversion package includes the specialized 8-tooth 1/4" spur sprocket, matching washer, and securing E-clip retaining ring. By installing this kit, you match your saw's drive pitch directly to 1/4" carving chains and specialty narrow-nose carving bars without needing expensive modifications or replacing the entire saw unit.
Key Features & Technical Highlights
- Genuine STIHL OEM Conversion Kit: Official STIHL drive system conversion package (Part # 1123 007 1029) engineered to factory tolerances for reliable fit and function.
- 1/4" Pitch Conversion: Adapts standard .38" (3/8" Picco) or .325" drive setups to a 1/4" pitch, 8-tooth spur sprocket configuration designed specifically for STIHL carving bars and chains.
- Complete Installation Hardware Included: Comes complete with the specialized spur sprocket, washer, and replacement E-clip (circlip) for a straightforward, direct-fit setup.
- Optimized for Detail Work: Enables smooth, controlled cutting action with minimal vibration—essential for chainsaw sculpting, log carving, and detailed tree care.
- Broad Model Compatibility: Engineered specifically to fit STIHL MS 170, MS 171, MS 180, MS 181, MS 210, MS 211, MS 230, and MS 250 model series.
- Carving Bar/Chain Part Numbers: Stihl makes 2 different carving bars which will run 2 different chains; a 1/4" .043 for narrow fine designs, and a 1/4" .050 that comes with a specific designed carving chain.
- 1/4" .043 with 64 drive link chain - Carving Bar 1/4" .043
- Chain - Select 64 Drive Links - 1/4" .043 Chain
- 1/4" .050 with 64 drive link chain - Carving Bar 1/4" .050
- Stihl Specific Carving Chain - Carving Chain 1/4" .050
- 1/4" .043 with 64 drive link chain - Carving Bar 1/4" .043
Product Specifications
| Brand: | STIHL |
| Product Type: | Spur Sprocket Conversion Kit for Carving Bars |
| Manufacturer Part Number: | 1123 007 1029 (1123-007-1029) |
| Chain Pitch: | 1/4" |
| Tooth Count: | 8 Tooth |
| Included Hardware: | 1/4" 8-Tooth Spur Sprocket, Washer, E-Clip (Circlip) |
| 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 210, MS 211, MS 212 C-BE, MS 230, MS 231 C-BE, MS 241 C-M, MS 250, MS 251, MS 251 C-BE |
