Gubeter Trimmer Head Gearbox Kit, for Stihl Fs44 Fs74 Fs80 Fs85 Fs90 Fs110 Fs130 Fs44 Fs65 Fs72 Fs74 Fs75 Fs76 Trimmer, for Stihl Fs44 - Fs65-4 - Fs72 - Fs74 - Fs75 - Fs76, 4137 640 0100