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A high-performance, high-tech, fuel-efficient chainsaw.

Product Description

"I bought this saw since I moved to the east coast to a heavily wooded area and the saw does not disappoint. Starts every time and runs great. Easy on the body as well with its mounting system to absorb vibration. To date the best saw I've ever owned..."
California, MD
The MS 271 FARM BOSS® replaces the mighty MS 270 with a saw that’s loaded with features and technology. It starts with a highly efficient engine that delivers 20% longer run times between refuelings – while cutting exhaust emissions in half compared to the MS 270. There’s also a pre-separation air filtration system that’s so effective, your air filter can last up to five times longer (now that’s high performance). All engineered into one compact, ergonomic design.

Men's Journal Approved!
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Model Features

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

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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.
  • 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.
  • 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.


50.2 cc (3.06 cu. in.)
2.6 kW (3.49 bhp)
5.6 kg (12.3 lbs.)
500 cc (16.9 oz.)
240 cc (8.12 oz.)
26 RM3
GUIDE BAR LENGTHS* (Recommended ranges)
40 to 50 cm (16" to 20")
STIHL recommends #3634 (26 RM3 67) OILOMATIC® saw chain and 16" 3003 812 6813 Ematic™ guide bar combination. The actual listed guide bar length can vary from the effective cutting length depending upon which powerhead it is installed.

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.


MS 271 FARM BOSS® is rated 4.7 out of 5 by 534.
Rated 5 out of 5 by from Execellent Saw! Best saw you can buy! Cuts thorough anything without issue
Date published: 2017-10-18
Rated 1 out of 5 by from Disappointed in Ohio This is the 2nd Stihl chain saw I have purchased. I had to buy this one because the one I purchased last year didn't hold up very well. The chain kept coming loose and within a few times tightening it, the screw completely broke off and had to be replaced and now it won't start. This farm boss I purchased is worse. I used it within 2 days of purchase, the chain was completely dull and needed replaced and again kept coming loose and needed to be tightened after every cut. It also continually shuts off the minute I take my finger off the trigger. I doubt this is a problem with Stihl, especially after being sold a brand new chain saw with a completely dull blade, this I put on Rural King, but I don't exactly know where to lay the blame with the fact that one, 2 days after purchase won't keep running, and the other, after 2 days of use won't start and the chain tightening screw completely sheered off, I think the blame has to go to Stihl on that one. So now I have to find time and waste the gas to take them both back to the store to be fixed. I think they should have to come to my house to fix them since I used both a total of 4 or 5 times, and the newest one only once. Very disappointed. Oh and my mother owns about 5 Stihl chainsaws, yes 5, because she would have to buy another one to use whenever the 1st ones were in the shop being fixed, and not returned for months at a time, oh she didn't take them to or buy them from Rural King. And I don't remember the model #s off hand of either saw I purchased, but they are both farm bosses.
Date published: 2017-10-18
Rated 5 out of 5 by from GREAT SAW you want go Wrong if you purchase this Saw . It does the Job and it does it Well.I Brought this Saw after a Storm came Through to help my Dad with a Lot of trees that fell on his Property. We worked it and Worked it Well and it Stood the Test and went above.
Date published: 2017-10-17
Rated 5 out of 5 by from Awsome saw Awesome saw don’t waste your money or time purchasing any other brand this saw starts every time with minimal effort even after sitting for weeks in the shed
Date published: 2017-10-16
Rated 5 out of 5 by from WOW what a work horse!!! I purchased the MS271 Farm Boss about a year ago. It's the best chainsaw I have ever owned. This thing cuts like no other. I mainly bought it for the power to cut through Hedge and Locust trees, which are in abundance here in Missouri. This thing eats though these hard wood trees like a snack. So long as you keep the chain sharpened. But I have since moved to a place where there is only White Oak and cedar trees. I have cut about 8 cords of wood out of the Oak in less then 2 weeks and the chain hasn't dulled yet. The power it has is stihl going strong. I am now looking at purchasing another Stihl. Either the MS R C-M 362 or the MS 441 C-M Magnum for milling some of the logs I have set aside for making planks and what ever else I want to make. I have used the 271 for splitting a few logs down the middle and it worked great. Its just a little tougher on the chain. Tough choice to make on the next buy.
Date published: 2017-10-16
Rated 4 out of 5 by from Good overall saw I have had this saw for almost 1 year. Initially, I had some problems with the bar oil running out quickly and for some reason it seemed to be the 1st 3 or 4 times I ran it. Now, the oil usage is more reasonable. The bar and chain adjustment is simple/not complicated and better than the auto adjuster on my Dad's Stihl. I do recommend this saw for most homeowners. My only regret is that I did not buy a professional grade saw with a larger bar. I initially thought this saw would be big & powerful enough, but it has struggled bucking a larger river birch. It has been ok on oak and pine. I have another 2 acres of larger trees and will likely buy a larger saw. Note, buy the Stihl 2 in 1 filing guide chain sharpener. It works really well and is worth the money.
Date published: 2017-10-16
Rated 5 out of 5 by from Cuts like a hott knife through butter! Excellent piece of equipment. Quality built and should last a life time. Saw starts easy and performs flawless. Has sufficient power to perform above its class. I really like the new twist off fuel and bar oil caps. Do not hesitate on spending the money on Stihl products. If maintained properly you will be money ahead in the long run with Stihl lasting a lifetime.
Date published: 2017-10-16
Rated 5 out of 5 by from All the chainsaw that you'll need The Farm Boss did a great job after Hurricane Matthew in cutting large downed trees. Worked long hours and performed without any problems. Runs a long time on a tank of fuel. I couldn't be happier with any other saw. Hope Mills Saw and Mower was fantastic from the moment I walked into the shop and beyond after leaving with my new saw. They asked me what I planned to cut with a chainsaw, the amount of time I planned to be using the saw. They showed me several options based upon my needs and recommended the MS 271 Farm Boss. They reviewed everything concerning the operations and maintenance for the saw, as well as, accessories I may need from fuel, bar oil and other needs, instead of letting me leave without all the tools I would need why operating this saw.I was so impressed by their service that I've since gone back and purchased a small chainsaw for trimming/cutting limbs.
Date published: 2017-10-15
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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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