Package Contents: 1 x Thrust Washer, 1 x Rider Plate, 1 x Collar Nut, 1 x L-Wrench, 1 x Spanner T-shaped. Blade adapter service kit, blade adapter kit for STIHL brush cutter. Rider Plate replaces # 4126 713 3100, Thrust Washer replaces # 4130 713 1600, Collar Nut replaces # 4126 642 7600. Fits Stihl FS36 FS40 FS44 FS50 FS55 FS55R FS56 FS56RC FS70 FS70R FS72 FS74 FS75 FS76 FS80 FS83 FS85 FS87 FS90 FS90R FS94 FS94r FS100 FS100R FS100RX FS110 FS110R FS110X FS110RX. Suitable for Stihl FS120 FS130 FS130R FS200 FS240 FS250 FS250R FS260 FS460 FS460C FR85 FR85T FR130T FR220 FR350 FR450 FR480 FR480C FS-KM FSA90 FSA90R FSE65.