Description
Overview:
This Chain Sprocket 3/8'' Picco 7T is a genuine Stihl replacement part designed to transmit engine power cleanly to the cutting chain. Made from hardened steel for wear resistance and consistent performance, it suits compact Stihl chainsaws such as the MS 190 T and MS 191 T. The sprocket has 7 teeth and a 3/8 inch Picco pitch (9.53 mm), matching low‐profile 3/8 chains to maintain correct engagement and chain speed. It replaces worn or damaged sprockets to restore smooth drive, reduce chain skip, and protect the bar and chain from premature wear. Manufactured to Stihl's specifications, it fits like-for-like and supports reliable cutting in both professional and domestic use. OEM reference: 1123 640 2002.
Key Features:
- Genuine Stihl part for assured fit and reliability
- 3/8'' Picco pitch (9.53 mm) with 7 teeth for accurate chain engagement
- Hardened steel construction for long service life under tough cutting loads
- Precision machined to support smooth running and reduce vibration
- Direct replacement to restore performance when the original sprocket is worn
- Helps maintain correct chain speed and alignment, reducing wear on bar and chain
- Suitable for forestry, arborist, landscaping, and DIY tasks
- OEM Part No. 1123 640 2002 for easy identification
Typical Applications:
Routine maintenance and repair of compatible Stihl chainsaws where the drive teeth are hooked, chipped, or excessively worn. Ideal when fitting a new chain or bar to ensure proper meshing and power transfer. Used in pruning, felling small to medium timber, logging prep, and garden maintenance where dependable chain drive is essential.
Also known as:
Drive sprocket, chain drive gear, drive gear wheel, chain gear, clutch sprocket, saw chain sprocket, chain drive wheel.
Fits Models:
MS 190 T, MS 191 T, MS190T, MS191T
Alternate Part Numbers:
1123-640-2002, 11236402002
Product Specifications
| L&S Part No. | 1123 640 2002 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11236402002 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - 3/8'' Picco pitch with 7 teeth for chain engagement - Hardened steel for wear resistance and durability - Fits Stihl MS 190 T and MS 191 T chainsaws - Restores performance by replacing worn sprockets - OEM Part No. 1123 640 2002 for identification |
| Fits Models | MS190T | MS191T |
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