Description
Overview:
This genuine carburettor is a direct replacement for selected Stihl petrol chainsaws, engineered to restore a correct air-fuel mixture for reliable starting, steady idle, and consistent cutting performance. Built around a robust die‐cast aluminium body with fuel‐resistant seals and diaphragms, it is designed for long service in demanding outdoor conditions. It replaces OEM numbers 1121 120 0611 and 1121 120 0650 and is suitable for machines originally fitted with a Walbro WT‐426 unit. Ideal for routine maintenance or fixing running issues, it fits mid‐size models such as the Stihl MS240 and MS260, helping owners and technicians keep professional and domestic saws performing as intended without modifying linkages or fuel lines.
Key Features:
- Genuine part for assured fit and function on compatible Stihl chainsaws
- Direct replacement for OEM 1121 120 0611 and 1121 120 0650
- Designed for saws originally fitted with a Walbro WT‐426 carburettor (check your existing unit)
- Durable, corrosion‐resistant alloy body with fuel‐resistant diaphragms for long service life
- Restores easy starting, stable idle, clean acceleration, and full‐load power
- Accurate metering for efficient fuel use and consistent cutting performance
- Compatible with existing throttle, choke and fuel connections for straightforward fitting
- Suitable for professional, hire, and domestic use where dependable operation is essential
- Supports routine servicing to resolve flooding, lean running, or hesitation under load
- Built to withstand field conditions common in forestry, landscaping, and site work
Typical Applications:
Replacing a worn or faulty carburettor on compatible Stihl chainsaws used in forestry work, arborist tasks, landscaping, grounds maintenance, agriculture, construction site preparation, and firewood cutting. Ideal when experiencing hard starting, erratic idle, flat spots on acceleration, or poor fuel economy, returning the saw to predictable performance.
Also known as:
Chainsaw carburettor, replacement carb, MS260 carb assembly, MS240 fuel mixer, WT‐426 pattern replacement, fuel and air mixer unit, carb body with metering diaphragm.
Fits Models:
024, 026, MS240, MS260, MS260C
Alternate Part Numbers:
1121 120 0650, 1121 120 0611, 11211200650, 11211200611
Product Specifications
| L&S Part No. | 355 1129 |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Key Features | - Direct replacement for OEM 1121 120 0611 and 1121 120 0650 - Fits Stihl models 024, 026, MS240, MS260, MS260C - Compatible with Walbro WT‐426 carburettor-equipped chainsaws - Durable die-cast aluminium body with fuel-resistant seals - Restores reliable starting and consistent cutting performance |
| Fits Models | 024 | 026 | MS240 | MS260, MS260C |
