Description
Overview:
This Sprocket Cover is a genuine replacement part for Stihl chainsaws, designed for a precise fit on the MS170 and MS180. Moulded from hard‐wearing polymer, it shields the drive sprocket, clutch area and chain from knocks and debris, and provides the correct clamping surface for the guide bar when tightened. Built to match OEM dimensions, it restores safe, reliable operation if your original cover is cracked, worn or missing. Suitable for trade, professional landscaping and domestic use, it installs using the saw's existing bar studs and nuts, helping you get back to work quickly. Genuine replacement part for assured compatibility and performance. Replaces OEM No. 1128 640 1705 and is also suited to earlier Stihl 017 and 018 models.
Key Features:
- Genuine replacement part for Stihl MS170, MS180, 017 and 018 models
- Direct swap for OEM 1128 640 1705; no modification required
- Durable, impact‐resistant polymer construction for long service life
- Protects sprocket and chain area, helping keep chips and dirt out of moving parts
- Maintains correct guide bar clamping and chain alignment when tightened
- Smooth, easy‐clean, corrosion‐proof exterior suitable for site and garden use
- Straightforward installation using existing fixings to minimise downtime
- Reliable fit for routine maintenance or repair, supporting safe operation
Typical Applications:
Used to replace damaged, worn or missing covers during servicing and repair of Stihl chainsaws in workshops, on site or at home. Helps maintain safe, smooth running when cutting timber, pruning, firewood processing, fencing, landscaping and general grounds maintenance. Ideal for users who need dependable protection for the sprocket and clutch area to extend machine life and reduce unplanned stoppages.
Also known as:
Clutch cover, side cover, chain side cover, sprocket guard, chain cover, bar side cover, chain sprocket cover, drive cover, sprocket housing cover. These terms refer to the same external cover that encloses the sprocket and clamps the guide bar on compatible Stihl chainsaws.
Fits Models:
017, 018, MS170, MS180
Alternate Part Numbers:
1128 640 1705, 11286401705
Product Specifications
| L&S Part No. | 355 566 |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Key Features | - Genuine replacement for Stihl MS170, MS180, 017, 018 models - Direct swap for OEM 1128 640 1705 - Impact-resistant polymer construction for durability - Protects sprocket and chain from debris - Installs using existing bar studs and nuts |
| Fits Models | 017 | 018 |

