Description
Overview:
This non-genuine carburettor is a replacement for Stihl MS231 and MS251 chainsaws and is designed to regulate the air-fuel mixture for clean starting, steady idling, and reliable power under load. Built around a durable die-cast aluminium body with robust polymer components, it offers a practical, cost-effective alternative to the original part while maintaining consistent performance. It is engineered to replace OEM No. 1143 120 0611 and is suitable for machines fitted with the Zama C1Q-S295 carburettor. Whether you are carrying out routine servicing or solving running issues such as hard starting, bogging, or poor throttle response, this assembly is made to fit the existing mounts and linkages on the saw, helping restore engine efficiency with minimal downtime.
Key Features:
- Non Genuine Part for Stihl MS231/MS251, offering dependable performance at a sensible cost
- Direct replacement for OEM 1143 120 0611, with compatible dimensions and connections
- Suited to models using the Zama C1Q-S295 specification
- Die-cast aluminium body for strength, heat resistance, and long service life
- Stable fuel metering for smoother idle, cleaner acceleration, and consistent cutting power
- Pre-set to a workable baseline; final tuning can be made to match local fuel and conditions
- Compatible with existing throttle and choke linkages for straightforward fitting
- Helps resolve common fuel delivery issues such as flooding, surging, or hesitation
- Designed for easy installation using standard hand tools, reducing workshop time
- Suitable for routine maintenance and preventative replacement on high-use saws
Typical Applications:
Used during servicing or repair of Stihl MS231 and MS251 chainsaws to restore correct fuel delivery and combustion. Common when a saw is hard to start, stalls at idle, lacks power, or shows erratic running after long use or contaminated fuel. Ideal for contractors, arborists, landscapers, and homeowners maintaining firewood or garden work where reliable engine operation is essential.
Also known as:
Chainsaw carb, aftermarket carb assembly, MS231/MS251 replacement carb, Zama-type C1Q carb, fuel mixer unit, replacement Zama C1Q-S295 equivalent, carburetor (US spelling), saw carb body.
Fits Models:
MS231, MS251
Alternate Part Numbers:
1143 120 0611, 11431200611
Product Specifications
| L&S Part No. | 355 1112 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - Replacement for Stihl MS231/MS251 chainsaws - Direct replacement for OEM 1143 120 0611 - Compatible with Zama C1Q-S295 carburettor - Die-cast aluminium body for durability - Compatible with existing throttle and choke linkages |
| Fits Models | MS231, MS251 |
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