Description
Overview:
The Carburettor C1Q-S122B is a genuine Stihl OEM carburettor designed for the MS 181 and MS 181 C chainsaws. It meters and delivers the correct air-fuel mixture to a 2‐stroke petrol engine, helping the saw start reliably, idle steadily, and pull cleanly under load. Built around a robust, die‐cast alloy body with precision fuel passages, it is engineered for durability in everyday cutting work. This unit is identified by Stihl MPN 1139 120 0606 (11391200606) and is a direct replacement that accepts the original throttle and choke linkages and standard fuel lines. It is an ideal choice when restoring performance affected by hard starting, poor idle, bogging, or inconsistent acceleration, keeping your Stihl saw working efficiently.
Key Features:
- Genuine Stihl OEM part for assured fit and compatibility
- Correct C1Q-S122B specification for MS 181 / MS 181 C
- Durable die-cast alloy construction for long service life
- Calibrated metering for smooth idle and strong throttle response
- Direct-fit replacement to minimise downtime during servicing
- Works with existing mounts, linkages, and hoses on the saw
- Supports reliable cold and hot starts when tuned to spec
- Helps restore fuel economy and cutting performance
Typical Applications:
Replacement carburettor for Stihl homeowner and professional use chainsaws where consistent air-fuel delivery is needed. Suitable when refurbishing saws that exhibit hard starting, stalling at idle, surging, flat spots on acceleration, or loss of power under load.
Also known as:
Carb, carburettor assembly, fuel mixer, air-fuel metering unit, C1Q-S122B carb unit.
Fits Models:
MS 181, MS 181 C, MS181, MS181C
Alternate Part Numbers:
1139-120-0606, 11391200606
Product Specifications
| L&S Part No. | 1139 120 0606 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11391200606 |
| Unit of Sale | 1 |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl OEM part for MS 181 / MS 181 C - Die-cast alloy construction ensures durability - Direct-fit replacement for minimal servicing downtime - Calibrated for smooth idle and throttle response - Compatible with existing mounts and linkages |
| Fits Models | MS181, MS181C |
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