FS 240 R

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A loop handle trimmer built to handle tough cutting locations.

Product Description

The STIHL FS 240 R professional trimmer combines a heavy-duty design with the versatility needed to handle a variety of challenging clearing situations. Providing 20% more fuel efficiency, the low-exhaust-emission engine, combined with the large (25.4 oz.) fuel tank, means you’ll spend more time cutting and less time refueling. The FS 240 R is an ideal addition to any professional crew charged with cutting around ponds, along canals, in roadside ditches, and through heavy thickets.

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.

    More information

  • 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.
  • Simplified Starting Procedure
    To get started, simply pump the fuel primer, set the choke and pull the starter cord. The built-in stop switch allows the user to turn off the engine with a simple press of the button. When the engine is off, the throttle lock automatically returns to the “start” setting. Your power tool will be ready to be started when you’re ready to get back to work.

    See it in action!
  • 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.


37.7 cc (2.3 cu. in.)
1.7 kW (2.3 bhp)
6.6 kg (14.6 lbs)
750 cc (25.4 oz.)
* Weight without cutting attachment or deflector.

Important Information

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 240 R is rated 4.4 out of 5 by 37.
Rated 5 out of 5 by from powerful upgrade I have a Stihl FS90R that I have put 1000's of hours on over the last 8 yrs. I decided it was time for an upgrade, I chose the FS240R for a replacement, and wow, it is powerful and of typical Stihl quality. It vaporizes weeds. All I can say is I wish I had bought one sooner. I will say this trimmer is not for the timid, or a person with no upper arm strength. This is a professional grade tool. I know I will get another 8 to 10 years out of this one. I will keep my FS90 for a spare.
Date published: 2019-09-28
Rated 5 out of 5 by from Just eats grass Big or Small Dont Matter How Tall Best dang trimmer on the market. Itll make a man out of you if ur willin to use it. ive cut guardrails on highways jus swingin as hard as i can go and its jus eatin everything in its path. Ive cut trees down with this thing and its been my momey maker for a year and a half and you jus cant kill it. No other trimmer compares to what I have put this trimmer through.
Date published: 2019-09-09
Rated 5 out of 5 by from beast got this trimmer a year ago used stihl gas mix as reccomended, did NOTHING special for winterizing of the trimmer, got it out for spring and it spuuttered on the second pull, and fired up on the third pull.i was EXTREMELY impressed. have owned other brands of trimmers and the last one i had i literally smashed it against a tree because it did not try to sputter let alone start. so, i ponied up the money for a stihl and i have to say it is worth EVERY penny!!!! and, it is still a BEAST!!! plan on cutting some more thick brier bushes with it this coming weekend, why? because it can and will get the job DONE! i rarely comment on anything i purchase, but, as you can tell, i am extremely happy with my trimmer. i suspect we shall be lifelong friends. =D
Date published: 2019-05-23
Rated 5 out of 5 by from Product works very well This trimmer is the best one I have owned in a long time. It starts easily, runs good and works very efficiently. And with the double, two year warranty, for buying stihl oil; it is a very good value. Thanks
Date published: 2019-04-12
Rated 4 out of 5 by from Great for power but not built to last more than two years Great power for weight. Only issue is with new epa requirements these engine run way to lean and only last 2 years max before bearings fail. To add with bearings failures. Gearbox will not last 2 years due to bearings failures. Overall great power but lacks with is maximum lifespan.
Date published: 2019-04-05
Rated 5 out of 5 by from THE BEST WEEDWACKED EVER MADE It seems that there is a huge myth in regards to weedwacker owners: ‘ the smaller the easier to use and cheaper to run ‘..WRONG!!!I have lots of spine issues and the facts are:The Stihl FS240 R is the best weedwacker ever made..yes it may be heavier than aunt Judy’s weedwacker BUT..the little extra weight equals more power that equals LOT LESS resistance with my spine and the weeds...I frequently get involved in some jungle clearing weedwacking chainsaw ( ms 150 t/ ms 201 t)Jobs and with the family 240 r weedwacker THERE IS NOTHG THAT GETS IN MY WAY OR HURST MY SPINE...sometimes on the smaller weeds/grass or with the thee bladed spade blade ?¿ I have to lighten up on that hair trigger of torque that’s just begging to get released..it rips..weather youR a home owner, da big boss or a volunteer; don’t be a penny proon and get the Fs 240r in the beginning because it will save you $$ in the long run, adding smiles to youR crew and clients alike..because it IS such a privlage to oporate you will understand why operators will leave the lunch circle early to return to the fs240r..ENJOY;)...(after several hundred hours it may get sluggish..no wories just clean the spark Atwater it will rip like a brand new machine);)
Date published: 2019-01-02
Rated 5 out of 5 by from Big power Good power easy to startup and germany production the bestseller
Date published: 2018-12-16
Rated 5 out of 5 by from Good durable weed eater Always bought stihl weed eaters but needed a bigger one for recently bought Deer lease . Works like a charm and eats up what ever I put in front of it
Date published: 2018-05-25
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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


How to Wind a STIHL Trimmer Head - Video

Product Instruction Manual (PDF)

Cutting Heads & Blades Selection Chart (PDF)

Download Instructions on How to Rewind Your Trimmer Head (PDF)

STIHL Limited Warranty

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