Get offers, how-to guides and more when you join the STIHL Email Community.

Sign Up

MS 170

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

Product Description

"I am very satisfied with every aspect of this saw and love how light weight it is. It starts easily and runs great. I have cut up to 16 inch diameter oak, and it did a great job, considering the size of the saw. The local dealer was very knowledgeable and very helpful."
Kelseyville, CA
The STIHL MS 170 is the perfect lightweight chainsaw for homeowners seeking a great value. Compact, lightweight with just the right amount of power, the MS 170 makes quick work of trimming or cutting small trees, fallen limbs after a storm, and other tasks around the yard. And even at its great price, the MS 170 has many of the same design features the professionals depend on.

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 4.3 out of 5 by 1203.
Rated 5 out of 5 by from Great Product, Great Reliability, Great Price! This is my first chainsaw, and I must say that I am impressed with the quality and performance of the MS 170. It does a great job handling any trimming job that I have attempted, and its lightweight features are excellent when lengthy trimming time is a factor. I was very pleased with the quality for the price! This is a great starter saw for the homeowner looking for dependability and value without breaking the bank!
Date published: 2019-07-15
Rated 5 out of 5 by from Powerful machine Bought this on sale and have never regretted this. Starts easily and cuts wood much bigger than rated with no problems. Really like the handle brake when moving from site to site. Safety is extremely important to me and this little saw fits the bill. Highly recommend for clean up operations or cutting for the fireplace it's that good
Date published: 2019-07-14
Rated 1 out of 5 by from Very very very unsatisfied!!!!!! I would not and will not recommend this product for anyone. I purchased this product in May to cut down 13 trees in my back yard with the understanding that the chainsaw is of high quality, but to my surprise it would not start the first time I tried to use it. I then carried it back to the retailer where they worked on it and got it to run, but wait, once I returned home it ran for less than 30 seconds. Yep, another trip back to the retailer ( Jevins Ace Hardware) where the dealer could not get it started either. Was told that this would need to be left there for warranty work. Lol. On a NEW Stihl chainsaw. Seriously??? Told them to keep it if that’s the kind of junk they sell.
Date published: 2019-07-13
Rated 5 out of 5 by from Good saw for the money This model is very lightweight which is great for users with a bad back, or bad shoulders. The power is just a bit less than what I'm used to, but my last chainsaw was a larger one. The price was excellent as was the experience at the dealership. My saw starts easily, and runs like a dream. All in all, I'm very pleased with my Stihl.
Date published: 2019-07-10
Rated 4 out of 5 by from Very Good little chainsaw This chainsaw, although harder to start than my previous Stihls, is a very good little saw for the money. I needed it to cut small trees and limbs and it does a very good job.
Date published: 2019-07-09
Rated 5 out of 5 by from Great working product With all of the windy weather we have been having this chainsaw came in handy. Two big limbs came off of some trees and it was like cutting butter with a hot knife. Glad we bought it.
Date published: 2019-07-09
Rated 1 out of 5 by from One week and two cuts Had it one week and made two cuts on a pecan tree limb then I bogged down on the next cut. Bogged bad!! Took it back and the place I got it tested it and said it need a new carb. At least it was covered under warranty this time. Like how light it is and when it was running had some power so we will see bit now after one issue I’m worried they won’t cover anything under warranty.
Date published: 2019-07-08
Rated 5 out of 5 by from Chainsaw Just what i needed for the job. Cuts great. has lots of power. Starts easy. Cuts trees up to 18 inches.
Date published: 2019-07-07
  • y_2019, m_7, d_21, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1203
  • loc_en_US, sid_ms170, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_stihl

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.

We Also Suggest

For Your Safety


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


My Preferred Dealer