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STIHL FS 91 R Professional Loop-Handle Grass Trimmer

STIHL FS 91 R Professional Loop-Handle Grass Trimmer

  • | SKU FS91R
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Product Description

STIHL FS 91 R Professional Loop-Handle Grass Trimmer is crafted to meet the rigorous demands of landscapers. With its low exhaust emission engine and expanded fuel tank, enjoy 30% longer run times compared to its predecessor. Maneuver with ease thanks to the rubberized loop handle, ensuring a comfortable grip and precise control around obstacles. The simplified three-step start procedure saves valuable time, while the superior air filter ensures long-term performance. Choose the FS 91 R for unmatched power and efficiency in every trim.
Model Number: FS91R
Note: STIHL recommends use of fuel with no more than 10% Ethanol content. Using fuel with greater than 10% Ethanol content may cause damage to your equipment and may void your STIHL warranty.


  • Power Source: Gas
  • Weight: 10.6 lbs.
  • Cutting Width: 16.5 in.
  • Engine Power: 1.2 bhp
  • Fuel Capacity: 11.5 oz.
  • Displacement: 27.2 cc


Misplace the user manual? No problem! Hartville Hardware is here to help. Below is the user manual for the STIHL FS 91 R Professional Loop-Handle Grass Trimmer. Read it before you buy it, or come back and download it if you have any questions after getting your product home.

STIHL FS 91 R Professional Loop-Handle Grass Trimmer

Warranty & Certifications

STIHL Limited Warranty can be found here: Click to View

All STIHL products are warranted for 3 months when the product is used for rental purposes.

All STIHL axes, hedge shears, loppers, pruners, and pruning saws are warranted against defective material or workmanship until the product is no longer available while owned by the original purchaser (other than for the purpose of resale) when used for all applications.

STIHL products sold through U.S. dealers are only for distribution in the United States.



Double limited warranty protection applies to STIHL gasoline-powered products purchased for personal non-income producing, household purposes only. At the time of your equipment purchase, simply purchase a six-pack of STIHL HP Ultra Oil or at least one gallon of STIHL MotoMix® premixed fuel to qualify for the double limited warranty coverage. STIHL HP Ultra Oil and STIHL MotoMix® premixed fuel provide for improved engine longevity. See the dealer for details or refer to STIHL’s Limited Warranty Policy.

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