Description
Overview:
This Chain Sprocket Cover is a Genuine Stihl OEM component designed for heavy-duty chainsaws such as the MS660 and 066. Built from a durable, impact-resistant polymer, it shields the drive sprocket and clutch area from chips, dirt and accidental knocks, helping maintain smooth running and extending service life. The cover provides a snug, factory-fit alignment with the guide bar and bar studs for secure clamping and consistent chain tracking. It is suitable for demanding forestry, arborist and site work where reliability matters. As an original Stihl part (OEM MPN: 1122 640 1707), it matches the specification and finish of the saw it's made for, supporting safe operation and straightforward maintenance. A direct replacement for worn, cracked or missing covers.
Key Features:
- Genuine Stihl part for assured compatibility and fit
- OEM specification (MPN 1122 640 1707) for reliable identification
- Tough, impact-resistant polymer construction for long service life
- Shields the sprocket and clutch zone from debris and abrasion
- Helps maintain correct alignment around the chain brake housing
- Smooth outer surface for easy wipe-clean maintenance
- Resistant to oil, fuel and temperature changes in real-world use
- Quick to fit using the saw's existing bar studs and bar nuts
- Ideal replacement for cracked, warped or damaged side covers
- Supports safe operation by keeping the drive area enclosed
Typical Applications:
Routine maintenance and repair of professional and domestic chainsaws working in forestry, landscaping, arboriculture, construction sites and firewood processing. Used when a cover has been damaged by impact, heat or wear, or during a full service to restore protection and keep debris away from the drive components.
Also known as:
Clutch cover, clutch housing cover, chain drive side cover, sprocket side guard, side plate, chaincase cover, bar nut cover, brake-side casing.
Fits Models:
064, 066, MS 640, MS 650, MS 660, MS640, MS650, MS660
Alternate Part Numbers:
1122-640-1707, 11226401707
Product Specifications
| L&S Part No. | 1122 640 1707 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11226401707 |
| Unit of Sale | 1 |
| Size | Overall Length: 200mm Overall Width: 118mm |
| Applications | 064, 066, MS 640, MS 650, MS 660, MS640, MS650, MS660 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS640 | MS650 | MS660 | 064 | 066 |
