MS 291


16 in. Bar

18 in. Bar

20 in. Bar

A high-performance, fuel-efficient chainsaw. Great for felling, firewood cutting and storm cleanup.

Equipped to handle demanding tasks, the MS 291 increases running time by 20% over previous model. Packing plenty of power, this chainsaw is ideal for felling, firewood cutting and storm cleanup. Several user-friendly features include an advanced anti-vibration system that reduces operator fatigue and side chain access for easy saw chain adjustment. The MS 291 is a dependable choice for a mid-range...Read More
Print Spec Sheets
MS 291 Specifications
DISPLACEMENT 55.5 cc (3.39 cu. in.)
ENGINE POWER 2.8 kW (3.76 bhp)
POWERHEAD WEIGHT 5.6 kg (12.3 Ibs.)
FUEL CAPACITY 500 cc (16.9 oz.)
CHAIN OIL CAPACITY 240 cc (8.12 oz.)
OILOMATIC® CHAIN .325 RM3
GUIDE BAR LENGTHS* (Recommended ranges) 40 to 50 cm (16" to 20")
STIHL ROLLOMATIC®
POWER SOURCE Gas
STIHL recommends #3634 (26 RM3 67) OILOMATIC® saw chain and 16" 3003 000 6813 Ematic™ guide bar combination. The actual listed guide bar length can vary from the effective cutting length depending upon which powerhead it is installed.
Model Features
  • Zoom
    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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Standard Features
  • Zoom
    Common Features for Chainsaws
    View the features common to many STIHL chainsaws.
  • Zoom
    Anti-Vibration System
    STIHL has developed 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.
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    Pre-Separation Air Filtration System
    This time-saving technology boosts the efficiency of the engine’s filter system, doubling the time between air filter cleanings. Air drawn into the engine is first separated via centrifugal force, ejecting the heavier dirt particles before being routed to the air filter. This pre-separation means less dirt to be captured by the air filter, resulting in less frequent cleaning and maintenance.

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  • Zoom
    Side-Access Chain Tensioner
    The side-access chain tensioner makes it much more convenient for the user to adjust the saw chain with a bar wrench as opposed to the typical location of the guide bar adjustment screw.
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    Toolless fuel and oil caps with retainers
    Simply lift the lever and twist the caps to remove or tighten. There‘s no need to use a tool to tighten or loosen.

Important Information
WARNING! The occurrence called “kickback” can cause serious or fatal injury. Always read the instruction manual carefully before using your saw. STIHL uses a green and yellow color-coding system to help you select a powerhead, bar and chain combination that complies with the kickback requirements of ANSI Standard B175.1 (gasoline-powered saws) and §30 of UL 1662/ ANSI Standard B175.1 (electric chainsaws). Ask your STIHL dealer about safe operating procedures and the advantages of the STIHL Quickstop® chain brake, STIHL Quickstop® Plus (Q) additional chain braking feature, STIHL reduced kickback bars and STIHL low-kickback saw chains.

STIHL recommends the use of green reduced kickback bars and green low kickback chains on all STIHL chainsaws.
* The actual listed guide bar length can vary from the effective cutting length based on which powerhead it is installed on.
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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    •2.6 oz. bottle makes 1 gallon mix

    •5.2 oz. bottle makes 2 gallon mix

    •6.4 oz. bottle makes 2 1/2 gallon mix

    •12.8 oz. bottle makes 5 gallon mix

    STIHL recommends a mix of 50:1 high-quality 89 octane or higher unleaded gasoline to STIHL engine oil. This same mix ratio should be used during break-in.

  • Bar and Chain Oil Zoom
    Bar and Chain Oil
    STIHL Bar and Chain oil is formulated to adhere to the bar and chain, and to reduce wear. Special agents in the oil formulation help keep sap and pitch from clinging to the bar and chain.

    Available in quart and gallon bottles, 5 gallon pails and 55 gallon drums, in both summer and winter weights.

  • Complete Filing Kits Zoom
    Complete Filing Kits
    Kits available for the following chain types: STIHL PICCO Mini; 1/4" pitch chain; .325" pitch chain; 3/8" pitch chain; .404" pitch chain.
    Includes file guide, depth gauge, round file, flat file and two file handles in tool pouch.
    Chain Pitch File Diameter File Guide
    Part Number
    Sharpening Kit
    Part Number
    in. mm in. mm Part Number
    3/8 PMN 9.32 5/32 4.0 0811 411 8073

    5605 750 4327

    5605 007 1026

    1/4
    3/8 PM
    6.35
    9.32
    5/32 4.0 0811 411 8091

    5605 750 4327

    5605 007 1027

    0.325 8.25 3/16 4.8 0811 412 8088

    5605 750 4328

    5605 007 1028

    3/8 9.32 13/64 5.2 0814 243 3384 5605 750 4329

    5605 007 1029

    0.404 10.26 7/32 5.5 0811 412 8108 5605 750 4330

    5605 007 1030

For Your Safety
  • Anti-Vibration Gloves Zoom
    Anti-Vibration Gloves
    Reduced vibration from handheld machines. Meets ISO 10819.1996 and ANSI S2.73 vibration standards TRM 72 and TRN 55.

    Sizes available: L, XL
  • STIHL® Forestry Helmet System Zoom
    STIHL® Forestry Helmet System
    Adjustable hearing protection. Epoxy-coated full face screen. Tough ABS hard hat meets ANSI Z89.1-2003 Type 1 Class G. All parts are replaceable.

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Rated 4.5 out of 5 by 134reviewers.
Rated 1 out of 5 by impossible to start, dies on idle just bought new 291 straight from a dealer. After 30min of work it starts to die on idle. Few days later, I can't start it with chain brake on. It's back at dealers with some clutch issue and I got nothing in four days.This is a definition of a bad product/ bad first experience. I kind of wish getting something cheap, like 3-4x the price that I can return/swap at a chain store for a working equipment. People pay premium for equipment to work right out of the box and work well. All I got for my premium is hassle and lots of lost time. This suppose to be the best ... it ain't. July 24, 2016
Rated 5 out of 5 by This machine has everything you can ask for, power,balance,fuel efficient... WHAT A BEAST...had a tree go down in a recent storm,"65' silver maple"removal estimate out of this world!!! Went and bought this beast and did it myself..4.5 hrs. and 3 tanks of fuel later the maple was history. I have used many different "affordable brands" in my day, what a waste of money. You may think the MS 291 is pricey, BUT the performance, ease of use,balance,light weight and fuel efficiency of this machine is worth every dollar. The Ferrari of chain saws in my opinion. July 19, 2016
Rated 2 out of 5 by POOR OILER Ive had this saw for about a year now. It does seem a bit underpowered which I was very surprised by. My main problems are: takes at least 4-10 pulls to start, it has a very conservative oiler WHICH IS NOT ADJUSTABLE!????????( on a stihl?????), so you burn threw chains like crazy ( only stihl yellow chains btw I buy), and that I literally pick using my 26 year old O26 because it starts first pull, and makes a chain last. I could deal with the saw if it had an adjustable oiler at least. I'm very experienced and have owned many saws. I own my O26 now and this one. Both full Stihl woodsman cases, tool kits, etc. I can't get rid of my O26 cuz of sentimental value so I'm mad I didn't buy a proffesional saw. I only do firewood 2 times a year about 5 cord so I figured this would do it. July 15, 2016
Rated 5 out of 5 by ROCK STAR Chainsaw! Purchased this about a year ago. (June 2015)We own a house in the high mountains of Colorado - 10K. I needed to fell quite a few very tall (over 60 ft) pine trees. This saw cut through them like a hot knife through butter! Job done.I then needed to drop a couple of large aspen trees at our place in Denver. I used a 22 ft. tall ladder to get started. After dropping several branches, I went after the main trunk (still atop the ladder) -- I made a misjudgement. The trunk began to fall and took the saw with it. My choices were to hang on or let it go.I let go - dropping the saw over 22 feet down onto a concrete path!!The engine didn't stop, blade immediately stopped. The large black handle bent slightly. The plastic spring connection broke. I continued to use the saw to finish the job. Job done, owner safe.I still can't believe it didn't smash into a bunch of pieces!! Didn't even act like anything happened. Incredible! June 9, 2016
Rated 2 out of 5 by I miss my MS290. MS291 is not a step up. There are two key design flaws that I see with the MS291. The new twist on air filter design allows dust to get around it. Whenever I remove the filter there is saw dust all over the air intake plenum. I am sure this will shorten the life the engine. I apply grease to the seal area to create a better seal. This reduced the dust getting by but did not eliminate it. Also, the chain will become bound up on the bar when cutting in snow or wet/frozen wood. I never had this problem with my MS290. I think it is because the chain on the MS291 does not coast when idling like the MS290. If I hear the engine starting to bog down, I can pull the bar out of the cut and rev the engine to clear out the chain/bar. If I don't catch it in time, I will spend the next hour scrapping slushy sawdust out of the bar groove with a screw driver. I found the problem was much worse if I used the cold weather bar oil. My neighbor has a MS271 and has experienced the same issue. We are both long time experienced wood cutters.I had a MS290 for 7 years before it got smashed by a falling tree. I liked my MS290 and thought the MS291 would be a like for like replacement; I was wrong. I have been a practicing engineer for 11 years and consider these issues to be key design flaws.I would like to comment on some of the reviews where people have trouble starting their saw. My saw starts very easy from my point of view. If you do not have enough upper body strength to start this saw then you should not be buying a MS291, buy a smaller homeowner saw. June 9, 2016
Rated 5 out of 5 by Great product This chainsaw is a great value for the money, very well balance and power. Have to get used to the easy start but is a great feature May 8, 2016
Rated 1 out of 5 by Poor oiling system Used the ms 291 5 minutes and burnt the bar and chain up cause lack of oil . Took it to dealer had it worked on used it 5 minutes again same thing . Pretty bad I have a new saw and can't use it . May 7, 2016
Rated 5 out of 5 by Great saw for firewood Bought the saw brand new from a local dealer. Loved the saw and its power. I upgraded the saw by adding a set of dual felling spikes and then a 20 Stihl bar and chisel chain. Fast and great power. Only down side I wish it had was a metal tank and handle assembly like the MS-261. March 31, 2016
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