3X STIHL FS87 FS90 FS100 FS130 FS310 KM90 KM100 KM130 Air Filter

The Gasket Genius air filter set (3 pcs) fits Stihl FS87, FS90, FS100, FS130, FS310, KM90, KM100 and KM130 strimmers and brushcutters. Replaces part number 4180 120 1800. The filters are designed to capture dust, dirt and airborne particles from intake air before they reach the carburettor and engine, helping maintain clean airflow and consistent engine performance.

Used across a wide range of Stihl petrol machines, this type of filter supports proper air-fuel mixture and helps protect internal engine components from contamination and premature wear, especially during regular or heavy-duty use.

This 3-piece set provides multiple replacement filters for routine maintenance. Suitable as direct replacements when the original filter becomes worn, dirty or clogged, helping restore stable operation and reliable airflow across all listed models.

Fits specified Stihl models:

• Stihl FS87
• Stihl FS90
• Stihl FS100
• Stihl FS130
• Stihl FS310
• Stihl KM90
• Stihl KM100
• Stihl KM130

Replaces part number:

• 4180 120 1800