MS 311


16 in. Bar

18 in. Bar

20 in. Bar

Advanced engine technology improves fuel economy by up to 20% over previous model chainsaws for longer run times.

Ideal for felling, firewood cutting and storm cleanup, this mid-range chainsaw features a low-emission engine that reduces fuel consumption by up to 10% compared to previous models. The new air filtration system requires fewer filter changes and allows for longer run times.

Print Spec Sheets
MS 311 Specifications
DISPLACEMENT 59.0 cc (3.6 cu. in.)
ENGINE POWER 3.1 kW (4.2 bhp)
POWERHEAD WEIGHT 6.2 kg (13.67 Ibs.)
FUEL CAPACITY 600 cc (20.3 oz.)
CHAIN OIL CAPACITY 350 cc (11.8 oz.)
OILOMATIC® CHAIN 3/8" RS3
GUIDE BAR LENGTHS* (Recommended ranges) 40 to 50 cm (16" to 20")
STIHL ROLLOMATIC®
POWER SOURCE Gas
STIHL recommends #3624 (33 RS3 60) OILOMATIC® saw chain and 16" 3003 008 8913 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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    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.

    More Information

  • 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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    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.
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    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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    Decompression Valve
    The decompression valve, also referred to as 'deco' or 'deco valve', vents compression in the cylinder for easier starting. The decompression valve temporarily reduces the compression in the combustion chamber during cranking and helps reduce the effort needed to pull the starter rope. It is opened manually and closes automatically as soon as the engine fires.
Standard Features
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    Common Features for Chainsaws
    View the features common to many STIHL chainsaws.

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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    Replacement latches and scabbard are available.

  • 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


Are You Ready for a STIHL?

MS 311 is rated 4.7 out of 5 by 196.
Rated 5 out of 5 by from Excellent Saw I bought this saw after reading many reviews on the internet and talking to alot of different people. It has very good power and cuts better than any saw I have ever owned or used. The large chain makes quick work of larger trees and will even rip cut when necessary to split extremely large pieces in halves or quarters. I highly recommend this saw to anyone who cuts alot of wood.
Date published: 2012-10-23
Rated 5 out of 5 by from Powerhouse My son and I bought this saw from a local dealer about a year ago now and all I can say is wow! This saw is a bit bigger than what I normally use but we needed a bigger saw anyway and this fits the bill nicely. The 311 is packed with a ton of power and is great for all the bigger stuff we run into. Just a great saw in a great package. Stihl hit a homerun with this saw to say the least. It's a bit heavy but that's why we only use it on the bigger stuff. It cuts through it like a hot knife through butter. The 20" bar is perfect for our needs and if we needed to put a bigger bar on it it has the power to handle it and not slow down. If you're in the market for a little bit bigger saw than normal like a 261 size then this saw is worth a hard look. It just works great. It has an easy to get to ( even with gloves on ) compression release button for easy cold starts also. Just a well thought out package. I buy Stihl saws because when I need a saw I need a saw that works and works well. Nothing is more frustrating than having some tree work to do and the saw won't stay running or is a hassle to start. Buy a Stihl and put that issue behind you. With Stihl I get the job done cause the product starts easily and runs like it should. Makes the job a lot easier. We own a Stihl MS180 Mini Boss a Stihl MS 261 and a Stihl MS 311 and all are great saws and have served us well. I know everyone that reads this review may not find it helpful but if you are reading it it's probably because you already have a smaller saw and are looking something a bit bigger like we were to help with the bigger stuff and you're familiar with how saws work. Meaning you're not a beginner and this isn't your first saw purchase. The 311 is NOT a first saw purchase by no means it's a heavy load saw and should be used as such. Buy with confidence and know that this saw is ready to work and work hard. Thanks for reading.
Date published: 2017-11-25
Rated 5 out of 5 by from Great saw and reliable Great saw lots of power for cutting a few cords of firewood every year, only thing I don’t care for is the chain oil is not adjustable and I don’t think it has enough oil coming onto the chain. However I have taken it back to the dealer and they think it’s ok. Uses less then half the tank of oil to a full tank of fuel.
Date published: 2017-11-17
Rated 5 out of 5 by from there is a reason they call it Boss awesome saw would Highly recommend it . the size to weight is just right . went with the 20" bar
Date published: 2017-10-13
Rated 5 out of 5 by from MS 311 I've had this saw for a year and love it. It works as it should and cuts through large wood like butter!
Date published: 2017-10-01
Rated 5 out of 5 by from Awesome This saw is badass. Biught it last for hurricane Mathew, great investment, worth every penny, iv had it for a year now I can still go to it right now and pull it 2twice on full choke and twice on half choke and its fired up ready to roll,
Date published: 2017-09-21
Rated 5 out of 5 by from This saw is very dependable and is a workhorse. I have purchased two MS-311's by Stihl, and I have nothing but good to say about them. I recommend this product to everyone I associate with. When it comes to chainsaws, Stihl is, by far, the best saw I ever used. The company seems concerned about user safety, and have done good things to reduce kickback.
Date published: 2017-09-15
Rated 5 out of 5 by from Superior Saw - A+ I purchased this saw about a year ago when I bought wooded property. I use the 20" bar for most everything and the 25" for stumps. It eats anything you put in its path! I give it a 99 out of 100 - it's a little hard to start after a month without use. This saw and a 193T saw is all you need!
Date published: 2017-09-14
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