MS 170

MS 170
A lightweight chainsaw designed for woodcutting tasks around the home.

Model Features

  • Built in the USA
    Indicates products that are built in the United States from domestic and foreign parts and components.

    More information

  • 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.
  • IntelliCarb™ Compensating Carburetor
    The IntelliCarb™ Compensating Carburetor is designed to automatically adjust the air/fuel ratio when the air filter becomes restricted or partially clogged and maintains the engine’s correct RPM. IntelliCarb™ uses air from the clean side of the air filter to control the diaphragm and flow of fuel. As the air filter becomes dirty and less air is available for the carburetor, the IntelliCarb™ system adjusts the fuel flow to compensate for the decrease in air flow. This is in contrast to typical carburetors that utilize this air from the “dirty” side of the air box.
  • Ematic™ Lubrication System
    The Ematic™ guide bar, when used with STIHL OILOMATIC® saw chain, will provide proper lubrication and less oil consumption than conventional methods. The system works because two ramps, strategically placed in the guide bar rail, help contain the flow of oil and direct all lubrication to the sliding faces of the bar and chain links as well as the rivets and driver holes, which in turn can reduce bar oil consumption up to 50%.


30.1 cc (1.8 cu. in.)
1.3 kW (1.7 bhp)
3.9 kg (8.6 lbs.)
250 cc (8.5 oz.)
145 cc (4.9 oz.)
3/8" PMM3
GUIDE BAR LENGTHS* (Recommended ranges)
30 to 40 cm (12" to 16")
STIHL recommends #3610 (61 PMM3 55) OILOMATIC® saw chain and 16" 3005 008 3913 Ematic™ guide bar combination. The actual listed guide bar length can vary from the effective cutting length based on which powerhead it is installed on.

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.


MS 170 is rated 4.4 out of 5 by 523.
Rated 1 out of 5 by from hard to start I have the same problem as some others.After about 15 to 20 tanks of gas its very hard to get started and if you do will not stay running and has very little power.I also to it in for repair and was told that is how they are.I have had Stihl in the past and they ran very well. Now I don't know what to do with this one.Very disappointed in Stihl
Date published: 2017-03-21
Rated 5 out of 5 by from This chainsaw is exactly what I have been looking for. This chainsaw is perfect for what I am using it for. I have cleaned out some dead trees, invasive plants, and basic yard work around my home and our local park.
Date published: 2017-03-21
Rated 4 out of 5 by from Good small saw, but a bad chain As soon as the chain was stretched per the instructions I readjusted and began cutting. After 10 minutes or so the chain came off. After many feeble attempts to get it back on I gave up and installed the spare I had bought. I followed all the same instructions and yet to have an issue with it. The chain that came with the saw doesn't seem to be the same quality as the spare I bought. Other than that it's a great little saw.
Date published: 2017-03-20
Rated 2 out of 5 by from Not so great The first 3 times it would start fairly good. Now it is really had to start.Took it back to the store, they had it for a few days, got it started then they tried to start it and couldn't. They said that is the way it is and couldn't do anything about it. So I have it and can't get it started. It pulls hard. I don't think I have 2 hours on it.I have a friend and his is the say way. Then said they have had other complaints about it.So I will not be getting another one.
Date published: 2017-03-19
Rated 3 out of 5 by from Love the product, checking out the warranty. I have two other STIHL chainsaws & Love them. So I bought this MS170. Now after about 15 to 20 tank fills it just slowed down & died. I tried to restart it with no luck, so I took it back to the dealer. He is looking at it too determine what happened & if it's covered by the warranty. I hope so because I've only had it for a few weeks. This is about the twelfth STIHL I've owned & never had an issue before this. At this point I don't recommend this product, but if they cover the warranty & it's just something minor then I would.
Date published: 2017-03-16
Rated 5 out of 5 by from Very good for occasional home owner use. Unfortunately, my 3 year old MS170 was stolen. Looking for one as good again as that one, which I bought on a special day when some Stihl reps were at a local supply stores special day and got a really great special price that time. Guess I'll have to pay the real price this time around. Just having one that will crank and go when you need it only occasionally is worth the price. Thieves usually get their rewards eventually, a few years inside a concrete room with bars for a door.
Date published: 2017-03-15
Rated 5 out of 5 by from Very nice product. This Chain saw has a mighty punch for a little guy. Even though I have only had this product a short time, I have used it on quite a few projects and it performed very well. I sure hope over time it holds up to the Stihl name. The weight of this device (light) made it easily used by this female. I was also very impressed by the sales person at Oakdale Ace Hardware in Smyrna, GA. He reviewed (physically showed me) the operation and safety of device in a non-condescending manner. Sometimes people are very condescending to women buying these types of products.
Date published: 2017-03-15
Rated 5 out of 5 by from it is all the saw i need it cuts just as good as my old one did. got extra blades for out in the woods, just in case. it cuts everything I put it into just fine.
Date published: 2017-03-14
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Optional Accessories

  • Quick Chain Adjuster (QCA) (B)
    The Quick Chain Adjuster (QCA) (B) allows the user to adjust the tension of the chain without the use of tools. This allows for easy chain adjustment.

    See it in action!

Standard Features

  • Common Features for Chainsaws
    View the features common to many STIHL chainsaws.

You Will Also Need

For Your Safety


Chainsaw Safety and Maintenance - Video
Product Instruction Manual (PDF)
Product Safety Manual (PDF)
STIHL Limited Warranty
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