FS 91 R - $329.95 DSRP


Distributor Suggested Retail Price FS 91 R DSRP:  $329.95

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A professional trimmer packed with features for simplified and convenient trimming.

Demanding landscapers can save time using the STIHL FS 91 R professional trimmer. With its larger fuel tank than the FS 90 R, this model provides 30% longer run times, as well as a three-step start procedure to get to work faster. Thanks to its superior air filtration and low-emission engine, the FS 91 R is a dependable tool with great maneuverability and power. Its rubberized loop handle is desig...Read More
Print Spec Sheets
FS 91 R Specifications
DISPLACEMENT 28.4 cc (1.73 cu. in.)
ENGINE POWER 0.95 kW (1.27 bhp)
WEIGHT* 5.5 kg (12.1 lbs.)*
FUEL CAPACITY 710 cc (24.0 oz.)
POWER SOURCE Gas
*Without deflector and cutting attachment.
Model Features
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    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.

    More Information

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    Built in the USA
    Indicates products that are built in the United States from domestic and foreign parts and components.

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    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.
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    Adjustable Front Handle
    Adjusts for comfort.
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    Fully Lined Drive Shaft
    Provides smooth operation and less vibration.
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    High Tech Polymer Housing
    Housings are lightweight, withstand greater impact and are corrosion-resistant.
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    Protected Choke Lever/Knob
    Helps prevent damage.
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    Start/Run/Stop Controls on Handle
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    Throttle Trigger Interlock
    Must be depressed before the trigger can be activated.
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    Air Filter Cover
    Easily removed for fast and easy filter cleaning or replacement.
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    Protected or Enclosed Control Cables
    Eliminate dangling and loose wires.
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    Heavy-Duty Steel-On-Steel Clutch
    Centrifugal clutch is designed to reduce slippage.
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    Protected Spark Arrestor Muffler
    Has large baffles which reduce noise level and contains a screen designed to reduce the emission of sparks.
Standard Features
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    Common Features for Trimmers
    View the features common to many STIHL trimmers.

Important Information
WARNING! Improper use of any trimmer/brushcutter can cause serious or fatal injury. Read, understand and follow all safety instructions in your instruction manual. To reduce the risk of injury from blade contact, circular saw blades may be used on FS brushcutters that have a limitstop, a bicycle handle and double shoulder harness and not on FS brushcutters with a "J" handle or loop handle. Other rigid blades may be used on FS brushcutters having a bicycle handle, a "J" handle or a loop handle equipped with a barrier bar. To reduce the risk of eye injury always wear proper eye protection. Always use the appropriate deflector for the type of cutting attachment, as explained in your instruction manual.
Note: STIHL engine products with the Caring for Nature logo are cleaner than EPA Standards for exhaust emissions.
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. Learn More…
WARNING! Improper use of any power tool may cause serious or fatal injury. Read, understand and follow carefully the operating and safety instructions in your instruction manual before using such products.

STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
Click to view the STIHL Limited Warranty Time Periods
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For Your Safety
  • STIHL® Pro Mark™  Hearing Protector Zoom
    STIHL® Pro Mark™ Hearing Protector
    Padded stainless steel spring wire headband maintains constant pressure. Easy to adjust. Noise Reduction Rating (NRR): 29. Meets ANSI S3.19-1974 standard.

    Colors available: Camouflage, Orange and Grey
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    Patterned Frame Glasses
    Experience professional-grade protection from the harsh sun with the Patterned Frame Glasses from STIHL. Offering 99% UV protection, the glasses meet ANSI standard Z87.1+ and feature comfort-cushioned nose pads and polycarbonate impact-resistant lenses. They’re also lightweight and slip-resistant. Stop by our showroom to check out the Patterned Frame Glasses, as well as all of our protective eyewear!
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    High Performance PRO Gloves
    Elastic slip-on cuffs. Padded palm and knuckle guards. Reinforced PVC grip overlays. Sizes: M, L, XL

Are You Ready for a STIHL?

FS 91 R is rated 4.7 out of 5 by 26.
Rated 5 out of 5 by from Great trimmer for the price Purchased 1 year ago. Still starts on the first pull and has had 0 problems. If your tired of buying junk ones every year then get a Stihl.
Date published: 2017-06-17
Rated 5 out of 5 by from Great product but for the price it could be better I love this trimmer. The power and reliability is on point. It will cut anything. For the price I wish the safety guard could be re engineered. I know stihl engineers could do better. The string can not get long enough. When the line breaks it sucks right I to the line head. Other than this small problem this trimmer is great.
Date published: 2017-06-14
Rated 5 out of 5 by from pOWERFUL ,YET LIGHTWEIGHT WITH AN EASY START nEIGHBOR WHO IS A PROFESSIONAL LANDSCAPER TOLD ME THAT FOR TRIMMING MY STEEP SLOPE DOWN TO THE LAKE i SHOULD BUY A QUALITY STIHL TRIMMER.. GLAD i TOOK HIS ADVICE THIS IS MY SECOND YEAR AND THIS TRIMMER IS VERY POWERFUL FOR LARGE WEEDS AND WITH EASY START IT MAKES IT SINGLE PULL TO START.. BOUGHT MY STIHL FROM lECHER fARM SERVICES AND THE INSTRUCTION AND THOROUGH DETAIL HAS PAID OFF TIME AND AGAIN. tHIS YEAR i BOUGHT A CHAIN sAW AND RECEIVED A VERY THOROUGH TRINING AND CAUTION .
Date published: 2017-06-05
Rated 5 out of 5 by from Awesome machine I bought this trimmer 1 year ago loved it .I picked up a friends trimmer 131r. I used his trimmer 2 time's i trim about 5 acres plus other side jobs aswell. I traded 91r to purchase 131r i was blown away by the power what a difference. I cut waist high weeds heavy brush use circular saw blade on both trimmers cutting trees 3.5 in diameter the weight isn't much different. I run non ethanol stihl mix only. I highly recommend stihl product's.
Date published: 2017-06-05
Rated 5 out of 5 by from Incredible power Upgraded from an Echo GT-225 to the FS91R. First time I started the Stihl up I laughed at the torque compared to the echo. I realize I'm comparing two completely different machines but it feels like I went from a Prius to a diesel truck. The manual states you need to run 4-5 tanks of gas through the trimmer to reach full power. I can't wait. I've managed to find reasons to weed wack 3 nights in a row after work. Love it.
Date published: 2017-05-31
Rated 5 out of 5 by from STRONG!!!! It is a bit on the heavy side but the quality and power are excellent. It cuts through the tallest grass and weeds like butter. I love it!!!
Date published: 2017-05-26
Rated 5 out of 5 by from Power to cut through the toughest weeds The unit is easy to start and has the power to cut through the toughest weeds.
Date published: 2017-05-15
Rated 5 out of 5 by from POWERFUL!!! I bought the FS 56 RC-E last week and it wasn't enough for my yard so I came in on day 7 to Farmers Service In Isle Of White Co, VA, GREAT people there, and traded up to the FS 91 R and I'm glad I did! This thing is much more protected being the professional series, and much more powerful! I added the duracut head and it takes everything down without bogging down! The negative reviews are from those that don't know how to respool a line head and start a trimmer that's not from a box store. These things are bulletproof! Buy the 6 pack of oil or the motomix and it will double the warranty from 2yrs to 4yrs! A MUST BUY YOU WONT BE DISAPPOINTED!!!!
Date published: 2017-05-12
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