Description
Overview:
This genuine Stihl air filter (OEM No. 1146 140 4401) is a direct replacement for compact petrol chainsaws, including the MS 150 C‐E and MS 151 C‐E. Built with fine filter media in a rigid plastic frame and a snug sealing edge, it captures dust and chips before they reach the engine. Clean intake air helps maintain stable idling, strong acceleration, and reliable cutting performance while reducing internal wear. The white filter element sits securely in the black frame to prevent air bypass. It is designed for regular maintenance and straightforward fitting under the standard filter cover, making it suitable for both tradespeople and DIY owners. Using the correct genuine filter supports proper fuel metering, extended engine life, and consistent output in everyday forestry and garden tasks.
Key Features:
- Genuine Stihl part for assured compatibility and fit
- Fine filter media helps protect the cylinder and piston from abrasive dust
- Rigid frame and sealing lip reduce unfiltered air leaks
- Supports stable performance, throttle response, and fuel efficiency
- Durable construction suited to frequent use in dusty conditions
- Simple to replace during routine servicing with basic hand access
- Helps extend service intervals when kept clean and replaced as required
- OEM No. 1146 140 4401 for accurate identification
Typical Applications:
Used on lightweight professional and domestic chainsaws for pruning, crown reductions, small felling, limbing, and firewood cutting. Ideal for arborists working at height, landscapers maintaining estates and parks, and homeowners carrying out garden tree care. Effective filtration supports reliable running in sawdust‐heavy environments and variable weather.
Also known as:
Air cleaner element, filter element, intake air filter, engine air filter, chainsaw air cleaner, service filter, replacement air element.
Fits Models:
MS 150 C-E, MS 151 C-E, MS150C, MS150C-E, MS150CE, MS151C, MS151C-E, MS151CE, MS151TC, MS 150 C E, MS 151 C E, MS 150 C E Z, MS150CEZ
Alternate Part Numbers:
1146-140-4401, 11461404401
Product Specifications
| L&S Part No. | 1146 140 4401 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11461404401 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures compatibility with MS 150 C-E, MS 151 C-E - Fine filter media protects engine from dust and chips - Rigid frame with sealing lip prevents air leaks - Supports stable performance and fuel efficiency - Simple replacement during routine servicing with basic tools |
| Fits Models | MS150C | MS151C, MS151TC |


