This genuine Stihl air filter is a crucial part that prevents dirt, dust and debris from entering the engine. This filter is made out of a non-woven, flocked material that ensures small foreign particles don't make their way into sensitive components. Part number 4140 124 2800 is for use on select Stihl FC, FS, HL, HS and KM series trimmer / brushcutter models.
Trimmers / Brushcutters: FC 55, FC 55 DZ, FS 38, FS 38 2 MIX, FS 45, FS 45 C, FS 45 C E, FS 45 L, FS 46, FS 46 C, FS 46 C E DZ, FS 46 DZ, FS 46 Z, FS 55, FS 55 C E, FS 55 R, FS 55 RC, FS 55 R Z, FS 55 T, FS 55 Z, FS 55 2 MIX, FS 55 R 2 MIX, HL 45, HS 45, HS 52, KM 55, KM 55 C, KM 55 C E, KM 55 R, KM 55 RC, KM 55 RC E,