MS 271 FARM BOSS® - $399.99 DSRP
A high-performance, high-tech, fuel-efficient chainsaw.
Bringing reduced-emission technology to mid-range chainsaws, the STIHL MS 271 FARM BOSS® is ideal for felling, firewood cutting and storm cleanup tasks. An improved low-emission, fuel-efficient engine cuts emissions by 50% when compared to previous models and delivers 20% longer run times than traditional 2-stroke engines. Designed with user comfort in mind, its compact, ergonomic design and advan...Read More

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. -
Built in the USA
Indicates products that are built in the United States from domestic and foreign parts and components. -
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. -
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. -
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. -
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.
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.
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.
Click to view the STIHL Limited Warranty Time Periods
STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
We Also Suggest
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HP Ultra 2-Cycle Engine Oil
HP Ultra is a fully synthetic 2-cycle engine oil specially suited for high performance chainsaws and power tools. This oil has outstanding engine cleaning characteristics, plus “ultra” superior lubricating qualities in comparison to other 2-cycle engine oils. It is ideal for use in STIHL 4-MIX® engines. This oil is biodegradable, degrading by 80% in 21 days.•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
•12.8 oz. bottle makes 5 gallon mix
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. -
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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Woodsman Chainsaw Carrying Case
Woodsman carrying case. Unique, removable bar scabbard has built-in tool holders to carry tools to the cutting site. Fits MS 170 to MS 460 M with 20" bar.Replacement latches and scabbard are available.
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Complete Filing Kits
Kits available for the following chain types: STIHL PICCO™ Mini; 1/4" pitch chain; .325" pitch chain; 3/8" pitch chain; .404" pitch chain.
Includes file guide, depth gauge, round file, flat file and two file handles in tool pouch.Chain Pitch File Diameter File Guide
Part NumberSharpening Kit
Part Numberin. mm in. mm Part Number 3/8 PMN 9.32 5/32 4.0 0811 411 8073 1/4
3/8 PM6.35
9.325/32 4.0 0811 411 8091 0.325 8.25 3/16 4.8 0811 412 8088 3/8 9.32 13/64 5.2 0814 243 3384 5605 750 4329 0.404 10.26 7/32 5.5 0811 412 8108 5605 750 4330
For Your Safety
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Sleek Line Glasses
A lightweight frame made of nylon offers the ideal combination of durability and comfort. Rubber temple tips and nosepiece offer a pressure-free fit behind the ears and protection from slippage on the nose bridge area. Protective lenses filter 99% of harmful UV rays. -
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.
MS 271 FARM BOSS® is rated out of 5 by 629.
Rated 5 out of 5 by RonG1966 from This will probably be the last saw you'll have to buy. I had other saws up until I bought a house that only has a heat pump for heat. so I basically heat my home with the fireplace. the MS271 Farm Boss cuts anything and everything I want to cut. It's not light by any means but what 50cc, 20" bar saw is. Starts great and runs even better.
Date published: 2018-04-20
Rated 1 out of 5 by Dmitriy from Broke after 1 month of use. Bought brand new MS271 from Rocky's and it broke after 1 month of use. I used Makita chainsaw before and had no problems, so I know how to use a chainsaw. Brought the STIHL saw back to Rocky's because I had bought the most expensive warranty with it. Rocky's technicians tore the saw apart and said they can't repair it nor replace it because they suspect it could have been my fault that it broke, and my best option is to buy a new chainsaw.
Date published: 2018-04-20
Rated 5 out of 5 by Drizzik from Amazing Saw I have always liked and respected the STIHL name and once again you pull though with another amazing product that performs up to and exceeds standards. Being from northern Alaska i have had little use for chain saws over the years however now living in Washington state I find a need every now and then. This saw has taken down two large trees and several smaller 3-5in trees with ease. We have clear cut two acres and its just getting warmed up. I am really impressed with the power and the over all ease of use. I have no complaints about this saw and would recommend this saw to any one that has need of a good well rounded chain saw.
Date published: 2018-04-17
Rated 5 out of 5 by JeepCJ783 from MS 271 Awesome Saw Recently, I had used my neighbors Stihl to cut down one of her trees. My original saw was having issues, so I had to use hers. It was an older Stihl but still could run circles around my old "green" saw. Decided it was time for a new saw so I chose the MS 271 Farm Boss. Absolutely impressed with this saw! Seemed to chew through 18" dia. Sugar Maple with no problem! Would recommend! Really can't say much about maintainability or reliability since I have only used the saw once.
Date published: 2018-04-16
Rated 5 out of 5 by ladybuga61 from Makes a happy husband After borrowing my bosses Farm Boss to cut up some fallen trees and being so impressed with it, I had to go out and buy my husband one. The folks at Stihl were super nice and very helpful. The Chain Saw is amazing, I got the 20" bar since we are surrounded by trees at our house. My husband worked with it the whole weekend the first week we had it and he was impressed at how well balanced it was and how that kept him from getting fatigued.
Date published: 2018-04-12
Rated 5 out of 5 by MattD63 from Great saw Outstanding saw. Purchased to fell trees and cut firewood
Date published: 2018-04-11
Rated 5 out of 5 by Badbutch2 from Great saw I own land in both Louisiana and Virginia and would have nothing but Stihl products.I recently visited my land in Virginia and found that after the last high wind storm that I had numerous trees down. I had a small Stihl saw there but needed a bigger one for the job at hand. So I went to Rural King and purchased a Stihl Farm Boss 271 with a 20" bar. It worked well and made the clean up job a lot easier.An excellent saw with adequate power to handle my cutting needs.Highly recommend.
Date published: 2018-04-10
Rated 5 out of 5 by Jd69 from Has great features Starts every time and doesn’t quit until I shut it off
Date published: 2018-04-09