MS 311 - $529.95 DSRP


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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.)
GUIDE BAR LENGTHS* (Recommended ranges) 40 to 50 cm (16" to 20")
FUEL CAPACITY 600 cc (20.3 oz.)
CHAIN OIL CAPACITY 350 cc (11.8 oz.)
STIHL recommends #3624 (33 RS3 60) OILOMATIC® saw chain and 16" 3003 008 8913 STIHL ROLLOMATIC® 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
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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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    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.

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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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    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 depending upon which power head it is installed.
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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    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.

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    Complete Filing Kits
    Kits available for the following chain types: STIHL PICCOTM Mini; 1/4" pitch chain; .325" pitch chain; 3/8" pitch chain; .404" pitch chain.
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    Chain Pitch File Diameter File Guide
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    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

    3/8 PM
    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
  • Pro Mark™ Apron Chaps Zoom
    Pro Mark™ Apron Chaps
    Rugged, yet comfortable, apron-style chaps are treated with water and oil resistant nylon covering multiple layers of Avertic™ Pro by Engtex® sewn-in, cut-retardant material. Garments are easy to buckle on and can be adjusted to fit a variety of sizes. Cargo pocket on front. Waist size expands from 30" to 42". For Proper fit and protection, the chap length should extend below the calf of the wearer's leg. Larger waists can be accommodated with the waist extender strap (Part No. 0000 886 5901)

    STIHL Pro Mark items are "Wash and Wear." They do not require dry cleaning as other brands do.


    Where this label appears, these garments have been Classified by UL® (Underwriter Laboratories Inc.) as chainsaw cut-retardent leg protection for all operators of Gasoline-Powered Chainsaws by using ASTM (American Society of Testing & Materials) F1414 Test Method and ASTM F1897 performance standard. See complete marking on the product.


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    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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    Cut-Retardant Mitts
    Made with water-resistant nylon backs and goatskin palms for comfort and a better grip without sacrificing dexterity. Avertic™ Pro by Engtex® cut-retardant material sewn into back of left glove. High-visibility orange color, separate index finger, and hook and loop wrist straps make these three-fingered chainsaw protective gloves an excellent choice for the professional logger. Sizes available: S (8), M (9), L (10), XL (11).

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Rated 4.7 out of 5 by 109reviewers.
Rated 5 out of 5 by 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. October 22, 2012
Rated 5 out of 5 by This saw is a monster My brother and I went into a Stihl shop and both walked out with brand new saws. He bought the 391, and I bought the 311. Mine keeps up with his just fine. There is very little noticeable difference between the two. This saw is a monster! October 29, 2015
Rated 5 out of 5 by simply the best saw the average outdoors man My grandpa bought the MS 311 I have now. It became mine after he passed. I had the MS 290 farmboss which it to was a great saw. The 290 doesnt hold a candle to the snappy throttle on the 311. I bought a piece of property that needed cleared with a bunch of different trees on it. This saw didn't flinch once at any kind of wood. From maple to hedge it cut it all. My uncle has bought 2 sense he used mine and heats with wood mostly hedge. I cant say enough about it just a great all around saw October 26, 2015
Rated 5 out of 5 by Lovin it so far Bought this saw because of the reviews I read elsewhere. I already know that Stihl is the best, but this saw has some anti-vibration technology built in to it I was told, sure seems to be the case. I read several of these reviews where people have trouble starting them. Stihls always start if you use the right technique, Set the choke and give it 1 or 2 pulls and you will hear it pop, then release the choke and give it a yank. Same with all the stihl saws I ever owned or used, weed eaters too. This is a great saw, cant go wrong with it. October 6, 2015
Rated 5 out of 5 by Lots of power great product Originally this was more saw than I wanted. But after using I'm glad I purchased . Use it falling and firewood Has yet to let me down . Always starts and never bogs down! October 1, 2015
Rated 5 out of 5 by Worth the investment I bought a stihl 311 and of course it cost me but it was an investment. We burn wood for heat so i needed a machine that could do it. I tried other brands that were cheaper but i discovered that a lot of them are "weekend warrior" saws. For those who burn wood Stihl is the way to go. It is an investment, meaning they are expensive, but it is worth it, trust me.I am a stihl man now. My weed eater is sthil, and going forward, all my eauiptment will ve stihl. The quality is there forsure.The 311 is a mean a@# saw to say the least.Chad. Kentucky September 19, 2015
Rated 1 out of 5 by wont start I bought this in jan. I ran it maybe 15 min,could not get it to start.took back to shop,they replaced ign module and plug. It ran maybe 15 min. would not restart. Its still in the shop. Not good for living in Fl. September 5, 2015
Rated 5 out of 5 by starts rain ,shine ,or snow every time have 2 1 with 16" 1 with 20" bar. great saws very reliable(marine const.) use every day cutting piles notches, plunge cuts,shiplaps. 41/2 yrs not 1 problem September 3, 2015
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