The Genuine STIHL 41491201800 Air Filter (also referenced as 4149 120 1800) is a factory-engineered intake filter designed to protect the engine on select STIHL outdoor power tools from dust, debris and contaminants before they reach the carburettor and combustion chamber. This OEM air filter ensures smoother starts, consistent performance and longer engine life — especially when working in dusty or abrasive conditions.
Built to STIHL’s precise standards, this high-efficiency air filter gives dependable performance and is a quick, simple replacement during routine servicing.
Models It Fits
This genuine air filter is compatible with several STIHL petrol tools that use the same intake design, including:
- STIHL FS 94
- STIHL FS 94 R / FS 94 RC-E
- STIHL HL 91 / HL 91 K
- STIHL HL 92 / HL 92 C
- STIHL HL 94 / HL 94 K
- STIHL KM 94 / KM 94 R KombiEngines
