FS 111 R

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This fuel-efficient, powerful trimmer handles tough jobs and meets emissions requirements.

Product Description

When you need more power to cut through your landscaping tasks, the STIHL FS 111 R trimmer has the extra muscle you’re looking for. Its low exhaust emission engine is powerful and provides 30% longer run times than the previous model. This professional trimmer features a three-step start procedure that saves users time, and a vertical pleated paper air filter for extended service intervals. It also features a rubberized loop handle, providing a comfortable grip of product for users to work with ease while cutting through thick and thin.

Model 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.

    More information

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

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  • Cutting Heads & Blades Selection Chart
    Need help selecting a cutting head or blade for your STIHL trimmer or brushcutter?

    Click here to view the Cutting Heads & Blades Selection Chart (PDF Format).
  • 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.
  • Multi-Function Control Handle
    Having easy access to all of the controls on one comfortable handle makes it easy to complete tasks so the operator’s hand never has to leave the handle.
  • IntelliCarb™ Compensating Carburetor
    The IntelliCarb™ Compensating Carburetor measures the air pressure on the clean side of the air filter and adjusts the metering diaphragm in the carburetor. This keeps the RPM at a consistent level, even when the air filter begins to clog.
  • Purge Pump Primer
    By pressing the bulb, this small fuel pump delivers fuel to the carburetor, reducing the number of starting pulls needed after an extended break between uses.
  • Anti-Vibration System
    STIHL has a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.
  • Upright Translucent Fuel Tank
    Allows operator to easily check fuel level before starting work. Upright position makes it easier to refill.
  • Protected Spark Arrestor Muffler
    Has large baffles which reduce noise level and contains a screen designed to reduce the emission of sparks.
  • Protected Spark Plug
    Protected yet easy to change.
  • Heavy-Duty Steel-On-Steel Clutch
    Centrifugal clutch is designed to reduce slippage.
  • Protected or Enclosed Control Cables
    Eliminate dangling and loose wires.
  • Air Filter Cover
    Easily removed for fast and easy filter cleaning or replacement.
  • Throttle Trigger Interlock
    Must be depressed before the trigger can be activated.
  • Protected Choke Lever/Knob
    Helps prevent damage.
  • High Tech Polymer Housing
    Housings are lightweight, withstand greater impact and are corrosion-resistant.
  • Fully Lined Drive Shaft
    Provides smooth operation and less vibration.
  • Adjustable Front Handle
    Adjusts for comfort.


31.4 cc (1.9 cu. in.)
1.05 kW (1.4 bhp)
5.5 kg (12.1 lbs.)
710 cc (24.0 oz)
*Without deflector and cutting attachment.

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.


FS 111 R is rated 4.5 out of 5 by 53.
Rated 5 out of 5 by from Very reliable and powerful This machine replaced a 30 year old Stihl trimmer that was getting pretty tired. I love this new FS 111R. Very powerful and is very easy to start. I would buy another in a heartbeat.
Date published: 2019-07-16
Rated 5 out of 5 by from Fires up every time 1 pull on choke 1 pull on start starts every time with out fail for over a year now has paid for it's self 10 times over
Date published: 2019-06-17
Rated 5 out of 5 by from Awesome machine. Bought the 111r a few weeks back and has been a real work horse.Bought it as a replacement even though I primarily use a different brand and I think I have found my new brand.
Date published: 2019-05-23
Rated 5 out of 5 by from Best string trimmer made! My FS111 R is amazing. By far the best string trimmer I’ve ever owned. Starts easy and works like a beast!
Date published: 2019-05-14
Rated 5 out of 5 by from Has great power I have this product, and push it to it's limits. I mean I work this unit HARD! hill sides, and grass that's high... And i have to say, it's holding up. If there's any other out there that's has more power than this. I would buy it in a heart beat. I know it's heavy, and i knew this before buying it. So if your not a hard worker, don't think about buying it. It's for people that's hard worker
Date published: 2019-05-05
Rated 4 out of 5 by from nice but Probably would give it 5 stars except 1. it's a little heavy/bulky. 2. the line reloading process sucks, and the line that comes on it is about as tough as cooked spaghetti. 3. the guard that keeps cuttings from flying in your face does not do a very good job. I put some heavy duty line on it, and it works like a Cuban cane cutter with that on it:) It could be improved in areas of weight, spool and balance.
Date published: 2019-04-19
Rated 5 out of 5 by from Stihl For Life I’ve had other stihl trimmers this one has so much power and is just perfect if you have big weed jobs and is easy to maintain and start also it is very lightweight
Date published: 2019-01-26
Rated 5 out of 5 by from Powerful Trimmer I have had this trimmer for a little over a year. I can tell you without reservation that this will cut through weeds like a hot knife through butter. I use Stihl MotoMix as the fuel source and .105 string. It starts on the first pull every time. I highly recommend this trimmer.
Date published: 2018-10-25
Rated 5 out of 5 by from Nice weight, power to spare, makes quick work I am building a Stihl household, Chainsaw (Farm Boss), Leaf blower (BR600), string trimmer (FS111R). Cannot (repeat cannot) beat Stihl utility, efficiency, power, and dependability. Every machine exceeds box store equipment by a mile. Using Still power equipment makes for fast easy work.
Date published: 2018-10-20
Rated 5 out of 5 by from Lots of power. Not as easy to use. Plenty of power and torque. The trimmer has sufficient torque to bury the head in the ground if you try. The throttle is difficult to modulate - it is more like an on/off switch. Unless you are going through really heavy stuff, you do NOT need full throttle. I end up feathering the throttle as I go. The trimmer spins the opposite direction as my old one (clockwise, when viewed from below). This means that when I hold the trimmer to my right and trim with the left side of the head, it flings debris back in my face. If I try to trim with the right side of the head, the guard blocks my view. The trimmer is very heavy, as would be expected with a solid-shaft trimmer with a large engine and fuel load.
Date published: 2018-09-05
Rated 5 out of 5 by from FS110R is very tough! Can't say about the FS111R but I've used the same FS110R with the LADOTD for FOUR years now, weed eating around ALL signs, culverts and mail boxs on state highways around DeSoto Parish, could NOT ask for a better weed eater!!!
Date published: 2018-08-31
Rated 5 out of 5 by from Definitely worth the money overall Bought this weed trimmer about a month ago and has worked great every time I have used it. It starts easy and runs good. I only have two faults to it: one if your a tall person (6 foot or taller) it is rough on your back to run, two it does seem to have less power then the fs90. But I would still recommend this product if u want a reliable machine.
Date published: 2018-08-31
Rated 1 out of 5 by from Sucks Machine sucks. I wrote my honest review earlier and you rejected it. I am tall and the machine is too short for me. It is also heavy so I have to bend over.
Date published: 2018-08-21
Rated 5 out of 5 by from Like the versatility of product Bought it because of gear box (July 25,2018). Starts great. Finally gave it an extended work out all day Sunday at an overgrown cemetery. Did great. Autocut 25-2 works perfect. Easy to wind- just watch video. I've also used the hedge trimmer, brush knife and the brush saw blade with it. Hedge trimmer works good.. The knife and blade are ok, knife is smaller diameter so it takes more time when using it. Planning on getting the pole prunner for it. Unit seems like it could use a little more power. This is my 5th stihl product. 025, 038 saws, FS50, and BG86.
Date published: 2018-08-21
Rated 5 out of 5 by from Wonderful! May husband told me to get this years ago and I wouldn't. Finally I listen, and hate I didn't listen... I love it ... easier to handle than I though
Date published: 2018-08-20
Rated 5 out of 5 by from overall a good powerful machine i bought mine last week on the 1st and had an issue as stated below and ran 4 tanks of gas through it and had just put the 5th one in and it wouldn't start it kept floodin itself out and was leakin gas out of every place it could possibley come from 4 tanks of gas ran through it which would equal to about an hour a tank so it was safe to say I wasn't too happy but my local deal made it right and exchanged it for another one the other one was getting some good power before it keeled over and this one runs like it did gaining some mighty good power as it runs more and more but like the other one i had to adjust the idle up just a little bit and when it runs it runs strong and powerful it does need a slight carb adjustment so it'll start easier it may come out of it on it's own but that's really the only issue i have with it it seems light and has more than enough power to do just about anything one could need done even more so than the 91R which i also have and is also a good powerful machine this one is even more so so despite everything would i recommend it ? yeah i would recommend it very much so i know the first one was just a rare dud out of the factory and im pretty sure this one is gonna be a good one once it gets adjusted to start a little easier
Date published: 2018-08-09
Rated 2 out of 5 by from This new model needs to go away and go back to what works Sometimes changes are good and sometimes changes don't even need to be made and that's the case here. I owned a FS 90R and it has been a great machine and I needed another one for my lawn business. Was talked into the FS 111R and couldn't be more disappointed with this decision. I actually hung it on the rack and went and bought a Echo 3020 and it's by far the greatest. Now I have to try and take this thing back and get my wasted money returned.
Date published: 2018-08-09
Rated 5 out of 5 by from GEAT TRIMMER GREAT powerhead. A lot of torque. Gets the job done. Light. Not crazy about the tap head - prefer my old Echo that used just one piece of line for both spools. Cant complain too much since I like it so much. Highly recommend. Tons of power and doesn't bog down trimming vertical like some trimmers do.
Date published: 2018-08-08
Rated 5 out of 5 by from Great product, easy start, plenty of power. Has more than enough power to cut even thick weeds using the correct line. Runs well and starts easy.
Date published: 2018-07-31
Rated 5 out of 5 by from Beast Mode I needed a trimmer/brushcutter to make and clear trails in wooden acreage. The FS111R was a beast. I added stronger string than provided to last longer, but so easy to restring. The saw blade made easy work on trees up to 4-5" diameter. This was so much fun, my 13 year old son took it from me and started clearing the way. Easy to start cold. This was a great purchase and made a tough job easy....and fun.
Date published: 2018-07-25
Rated 2 out of 5 by from underpowered and too short for length of extension. Bought Stihl FS111R because I have a FS250 with handlebars. Needed a trimmer for working under orchard trees, ornamentals, and a sloped ditch about 3 ft deep. This trimmer is severely underpowered given the weight and hp rating. Power is doggy and does not have quick rpm response. I am 6'2" and the length of the extension needs to be longer. Having to work slightly bent over which over a short period causes back to ache. I would not purchase this product if I knew then what I know now.
Date published: 2018-07-18
Rated 5 out of 5 by from Overall Amazing Product Working for a larger landscaping company, we have a total of about 12 of these with a couple hundred hours each, Never a problem with starting them, first pull every time and can run for hours on end. Using square line I've found there's very few these things can't get through without being wide open. Times where we do need to run them wide open this engine clear almost anything you throw at it. Managed to bog them down a few times but only on the very thickest overgrowth, more than enough power for pretty much any homeowner or landscapers hard jobs and light enough to carry for a long period without getting too tired.
Date published: 2018-06-19
Rated 5 out of 5 by from Strong machine This brush cutter sounds like a 4 stroke and has power galore. Also started on the first pull, even straight from the store.
Date published: 2018-05-31
Rated 5 out of 5 by from This product has excellent power. Bought one of these about 2 months ago. It is starting to get through the break in period. Let me say I have an area of grass that normally takes about 30 minutes to cut. But with this product I can now do this area in about 20 minutes and there is a ditch I have to trim in this same area as well. The grass is starting to thicken up and this product is cutting even better. Excellent product, it fits nicely with my team of FS 55 R and FS 94 R.
Date published: 2018-05-21
Rated 4 out of 5 by from by and large it is an efficient reliable tool except as detailed below automatic line feed does not always work. therefore have to turn off the trimmer and hand advance the string.
Date published: 2018-05-14
Rated 5 out of 5 by from Starts easy and has lots of power! I love my trimmer and blower. The convenience of the gas engine is great.
Date published: 2018-05-09
Rated 5 out of 5 by from First impression “Fantastic “ Just got it today and just have a couple of hours on it, but right out of the gate I know it’s a winner. Started first pull and runs and sounds great!
Date published: 2018-05-01
Rated 5 out of 5 by from The best! I don’t use my Stihl Trimmer heavily, but my yard is bordered by forest and does require a fair bit of tending. I wanted to know that when I needed a trimmer, I had the best! I have not been disappointed. From initial sales to support, through to product quality, power, and dependability, my Stihl trimmer has been a terrific investment. When I do call upon it, it starts with one pull and slays any weeds and unwanted growth I throw at it.
Date published: 2018-04-22
Rated 5 out of 5 by from Great Trimmer This is a great trimmer with power to spare for cutting through tough conditions. Well balanced and easy to handle, although with power comes some additional weight. Starts easily. I wanted a trimmer to handle light and heavier conditions on our 5 acre lot, and this trimmer fits the bill well.
Date published: 2018-03-05
Rated 5 out of 5 by from perfect performance Starts every time. Cuts bamboo and English Ivy stems. Just what the doctor ordered.
Date published: 2018-02-23
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Optional Accessories

  • Gearbox Attachments
    Gearbox attachments are available for this model. View the interchangeable gearbox chart to find out which attachments work with this model.
  • Straps and Harnesses
    They distribute the load from your hands to your shoulders. They also help reduce operator fatigue and make it easier to use trimmers, brushcutters and clearing saws for extended periods.
  • Trimmer Line
    There's high-performance STIHL trimmer line for every operating condition. 
  • Trimmer Heads & Blades
    Many trimmer heads and blades are available. Find out which ones to use with this model in this chart.  

Standard Features

  • Common Features for Trimmers
    View the features common to many STIHL trimmers.

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For Your Safety


Read what our customers say about STIHL Trimmers
How to Wind a STIHL Trimmer Head - Video
Cutting Heads & Blades Selection Chart (PDF)
FS 111 R Instruction Manual (PDF)
Download Instructions on How to Rewind Your Trimmer Head (PDF)
Product Safety Manual (PDF)
STIHL Limited Warranty
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