Description
Overview:
This non-genuine carburettor is a direct replacement for the unit used on Stihl two‐stroke petrol chainsaws, designed to meter and mix fuel and air for reliable starting, clean idle, and strong acceleration. Built with a die‐cast aluminium body for low weight and good heat resistance, it uses fuel‐resistant seals with precision‐machined metering components to match original performance. It is suitable for Stihl MS 171 and MS 171 C models and replaces OEM references 1139 120 0619, 1139 120 0629, and 1139 120 0630. A correctly functioning carburettor helps prevent hard starting, bogging under load, or inconsistent idle, making this part a practical fix during servicing or repairs. Being a cost‐effective non‐genuine part, it offers a straightforward route to restore performance without compromising day‐to‐day usability.
Key Features:
- Non‐genuine replacement engineered to match the fit and function of the original unit
- Direct replacement for OEM numbers 1139 120 0619, 1139 120 0629, 1139 120 0630
- Die‐cast aluminium body with durable fuel‐resistant seals for dependable service life
- Maintains correct air‐fuel ratio for easier starting, stable idle, and smooth throttle response
- Standard mounting pattern and port layout to suit the listed Stihl models
- Supplied ready to fit; mixture and idle can be tuned to the saw as required
- Practical choice for restoring performance when cleaning or rebuilding the old carburettor is not effective
- Helps reduce downtime during routine maintenance or a mid‐season repair
Typical Applications:
Used during chain saw servicing or repair to resolve problems such as difficult starting, uneven idle, hesitation on acceleration, or poor power under load. Suitable for professional and domestic use on compatible Stihl models in landscaping, tree surgery, site clearance, and general property maintenance.
Also known as:
Chainsaw carburettor assembly, replacement carb for Stihl 1139 series, fuel‐air mixer, carb unit for MS171 family, carburetor (US spelling), replacement fuel metering body.
Fits Models:
MS171, MS171C, MS181C-BE, MS211C-BE
Alternate Part Numbers:
1139 120 0629, 1139 120 0619, 1139 120 0630, 11391200630, 11391200629, 11391200619
Product Specifications
| L&S Part No. | 355 4522 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - Direct replacement for Stihl MS 171 and MS 171 C models - Matches OEM numbers 1139 120 0619, 1139 120 0629, 1139 120 0630 - Die-cast aluminium body with fuel-resistant seals - Maintains correct air-fuel ratio for reliable performance - Standard mounting pattern for easy installation |
| Fits Models | MS171, MS171C |
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