STIHL FS91R String Trimmer Engine Head / Powerhead In Strong Starting & Running Condition. 28cc Unit That Takes 50:1 Fuel/Oil Mix. Professional Grade Engine That Starts Easily & Runs Great. Good Solution To RE-Power Your STIHL Trimmer, Pole Saw, Edger & More - FITS MANY Shaft/Gearhead Combinations. Engine Is Great For Standard String Heads, Brushcutting, Edging, Pole Pruner Kombi Units & More. Shafts Work From Many Models Such As FS90R FS91R FS110R FS100RX FS110R FS111r KM94 KM90 KM91 KM110 KM111 KM131 KM130 FS240R FS250R FS85 FS80 FS131R FS130R FS251R -- Mechanically Sound Unit - Some Average Cosmetic Sign Of Use As Shown - Please Review Detailed Photos To Assess Physical Condition. 

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