Description
Overview:
This Chain Sprocket Cover is a genuine Stihl OEM spare for compact petrol chainsaws, providing reliable protection for the drive sprocket and surrounding area. Manufactured from a tough, high‐impact polymer in Stihl's standard white finish, it shields the clutch side from chips, dirt, and chain oil while helping to keep the bar and chain seated correctly. Purpose‐built for Stihl homeowner and light‐professional models, it offers an accurate fit on the MS 181 and MS 181 C and fits across the related 171/211 series. The cover supports safe, efficient running by reducing contamination and wear, and it removes easily for routine maintenance. Supplied to Stihl specification under part number 1139 640 1700, it is a dependable replacement for worn, cracked, or missing covers.
Key Features:
- Genuine Stihl OEM part (1139 640 1700) for assured compatibility and performance
- Durable, high‐impact polymer construction resists knocks, abrasion, sap, and chain oil
- Precisely moulded for correct bar clamping and consistent chain clearance
- Protects the sprocket and clutch area to reduce wear and debris ingress
- Straightforward installation with standard bar nuts; easy removal for cleaning and servicing
- Stable fit helps maintain proper chain guarding and reliable day‐to‐day operation
- Suitable for routine maintenance and replacement on MS 171/181/211 series saws
Typical Applications:
Ideal for general tree care, firewood cutting, grounds maintenance, fencing, and light forestry tasks. Use it to restore protection after damage, improve reliability in dusty or resinous conditions, and keep the sprocket area cleaner, supporting smoother chain drive and simpler maintenance in workshop or field settings.
Also known as:
Sprocket guard, chain cover, sprocket shield, clutch cover, clutch side cover, chain side cover, clutch housing cover.
Fits Models:
MS 171, MS 171 C, MS 181, MS 181 C, MS 211, MS 211 C
Alternate Part Numbers:
1139-640-1700, 11396401700
Product Specifications
| L&S Part No. | 1139 640 1700 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11396401700 |
| Unit of Sale | 1 |
| Applications | MS 171, MS 171 C, MS 181, MS 181 C, MS 211, MS 211 C, MS171, MS171C, MS181, MS181C, MS211, MS211C |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS171, MS171C | MS181, MS181C | MS211, MS211C |
