FS 91 R



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The robust STIHL FS 91 R features a low-emission engine and large fuel tank, which provides 30% longer run times than the previous model.

Fulfilling the demanding landscaper’s trimming needs, the STIHL FS 91 R trimmer is the well-rounded choice for professionals. It features a low-emission engine and large fuel tank which provides 30% longer run times than the previous model. With its rubberized loop handle, this straight-shaft trimmer delivers a comfortable grip of product, the maneuverability needed to navigate obstacles and the power to cut them down. The FS 91 R trimmer also has a simplified three-step start procedure that saves users time, and a superior air filter benefitting you in the long run.



  • Powered by a low-emission engine
  • Solid drive shaft will accommodate metal blades with approved deflectors and handle configurations
  • Larger fuel tank for longer run times than previous models
  • TapAction™ AutoCut® 25-2 head is standard


Additional Features

  • Reduced-Emission Engine Technology, Caring for Nature - the STIHL Inc. “Caring for Nature” seal identifies its powered products that are more environmentally conscious, producing zero or low exhaust emissions. STIHL Inc. defines “low exhaust emissions” as being cleaner than EPA and/or CARB exhaust emission standards.
  • Built in the USA - indicates products that are built in the United States from domestic and foreign parts and components.
  • Shoulder Strap / Carrying System - using a shoulder strap or carrying system helps distribute the weight of the equipment for increased operator comfort and improved maneuverability.
  • Adjustable Front Handle - adjusts for comfort.
  • Fully Lined Drive Shaft - provides smooth operation and less vibration.
  • High Tech Polymer Housing - housings are lightweight, withstand greater impact and are corrosion-resistant.
  • Protected Choke Lever/Knob - helps prevent damage.
  • Throttle Trigger Interlock - must be depressed before the trigger can be activated.
  • Air Filter Cover - easily removed for fast and easy filter cleaning or replacement.
  • Protected or Enclosed Control Cables - eliminate dangling and loose wires.
  • Heavy-Duty Steel-On-Steel Clutch - centrifugal clutch is designed to reduce slippage.
  • Protected Spark Arrestor Muffler - has large baffles which reduce noise level and contains a screen designed to reduce the emission of sparks.
NOTICE: Some products in this store can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Please check the product label for warning information. For more information go to We cannot ship any products into California that are affected by Proposition 65.

SHIPPING CHANGES: Due to new sales tax rules in the state of Colorado, effective June 1, 2019, purchases made online through JAX Mercantile for customers in the state of Colorado will only be able to be shipped to addresses within JAX current tax jurisdictions in Fort Collins, Loveland, Lafayette, and Broomfield. Customers in the state of Colorado who do not have shipping addresses within these zip codes may still opt for in-store pickup at any JAX store location when making a purchase on the JAX website. Learn more on our shipping and returns page.

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