MS 171 - $199.99 DSRP



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A lightweight, fuel-efficient chainsaw with reduced-emission engine technology.

As part of the lightweight generation of STIHL chainsaws, the MS 171 features reduced-emission engine technology — an advantage for the user because it reduces fuel consumption while reducing exhaust emissions. This innovative chainsaw is just right for homeowners who need to cut firewood, fell small trees or do clean up.
Print Spec Sheets
MS 171 Specifications
DISPLACEMENT 31.8 cc (1.94 cu. in.)
ENGINE POWER 1.3 kW (1.7 bhp)
POWERHEAD WEIGHT 4.3 kg (9.5 lbs.)
FUEL CAPACITY 280 cc (9.5 oz.)
CHAIN OIL CAPACITY 180 cc (6.1 oz.)
OILOMATIC® CHAIN 3/8" PMM3
GUIDE BAR LENGTHS* (Recommended ranges) 30 to 40 cm (12" to 16")
STIHL ROLLOMATIC® E
POWER SOURCE Gas
STIHL recommends #3610 (61 PMM3 55) OILOMATIC® saw chain and 16" 3005 000 3913 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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    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.

    More Information

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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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    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.
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    Translucent Fuel Tank
    Allows operator to easily check fuel level before starting work.
Standard Features
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    Common Features for Chainsaws
    View the features common to many STIHL chainsaws.

Important Information
* 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

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    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.

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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.

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

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    Complete Filing Kits
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    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
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Are You Ready for a STIHL?

MS 171 is rated 4.2 out of 5 by 124.
Rated 2 out of 5 by from More time being repaired than used... I purchased this saw from a local dealer based on a recommendation after describing my needs/application. The saw worked great the first time used. Then the issues started...the saw is reliable and starts every time, but when I engage the chain and start cutting; the vibrations cause the top air filter/spark plug cover fall off. The saw has been into the dealer for repair twice now for this same issue. I just got it back and need to trim more branches off some trees on my property but am hesitant to use my saw. I highly DO NOT recommend this saw with the slide lock that keeps the cover on. I suggest looking at a model that has a more secure lock to keep the cover on. I asked the dealer if they would be willing to take this saw back due to it being defective and SELL me a more expensive saw where the cover locks, but was told that they couldn’t help me and that I needed to contact Stihl directly. What great customer service by the dealer!
Date published: 2017-10-24
Rated 1 out of 5 by from Used once. 2nd time it broke. Used it once and it worked fine. Stored without fuel. Used second time and piston broke. Was told improper fuel,but used gas mixed per stihl oil directions. Took to Ace and they said no oil in bottom of motor indicates improper fuel so not covered under warranty. I am not an engine expert so unable to validate diagnosis. Will not buy again.
Date published: 2017-09-13
Rated 5 out of 5 by from easy start is great Great saw for homeowners who have lots of trees, easy start is great for older people,great saw .
Date published: 2017-09-04
Rated 5 out of 5 by from Great Saw! I bought my first Stihl (an MS 311) in early April 2017. LOVE IT. I picked up a 171 about 6 weeks ago for limbing and smaller jobs around our Northern MI vacation home. The 171 IS FANTASTIC. Like its big brother, it is reliable, powerful, very well made and I really reccomend it to anyone who needs a very good trouble free professionally engineered saw. I have used both quite a lot turning fallen trees into campfirewood and they are reliable, powerful, light, ergonomic, etc... Great tools!
Date published: 2017-08-26
Rated 4 out of 5 by from Excellent Wonderful outdoor tool. I took it and cut down about 4 bushes that we didn't want in no time.
Date published: 2017-08-21
Rated 5 out of 5 by from Great saw - very effective for larger trees than I thought possible I have happily used a still ms361 ( my "light saber ") and ms441 Magnum for years. But have begun back-country hiking and biking trail maintenance. So I bought this lighter MS171 saw to backpack ( in the often several mile hikes ) and clear trees down on the trails. Many reviews mention that this saw is for occasional use and small trees. But I have been surprised at how this saw will chew through 12 to 20 inch logs - even aged dead oak logs that are extremely hard wood. i am now happy to depend on this saw for all trail maintenance trees - unless a large tree "mess" dictates that I need to carry-in a larger heavier saw. As others have said, learn to sharpen the chain. It is small in width ; but that small width allows a small motor to drive through lots of wood. Keep extra fuel near, as the gas tank is much smaller than the pro saws. I use premium 100% gas with the new grey bottle stilh mix and have not had any problems starting. This is a great saw if one is patient and allows it to chew through wood at its own pace.
Date published: 2017-07-16
Rated 5 out of 5 by from Awesome saw This is a great saw. Starts easy, lots of power, and very light. It's been a dream to use.
Date published: 2017-07-06
Rated 5 out of 5 by from Great Fathers Day Gift Got this saw for my Dad on Fathers Day. He loves how light it is, and how easy it is to start. He says the Anti-Vibration handle helps keep his elbows from hurting after a day in the tree line. -Phenomenal unit for the price!
Date published: 2017-06-19
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