Manouvrable, high-torque chainsaw for improved performance and user comfort perfect for preparing firewood. Extremely high torque over a wide range of speeds. Up to 20 less fuel consumption and up to 50 reduction in emissions compared to a STIHL 2-stroke engine of the same power output without 2-MIX technology.
Manouvrable, high-torque chainsaw for improved performance and user comfort perfect for preparing firewood. Extremely high torque over a wide range of speeds. Up to 20 less fuel consumption and up to 50 reduction in emissions compared to a STIHL 2-stroke engine of the same power output without 2-MIX technology.
in 19 offers
Stihl MS 391 Farmboss 3.3kW Petrol 50cm/20" Chainsaw (1140-200-0689)
Manouvrable, high-torque chainsaw for improved performance and user comfort perfect for preparing firewood. Extremely high torque over a wide range of speeds. Up to 20 less fuel consumption and up to 50 reduction in emissions compared to a STIHL 2-stroke engine of the same power output without 2-MIX technology.
Manouvrable, high-torque chainsaw for improved performance and user comfort perfect for preparing firewood. Extremely high torque over a wide range of speeds. Up to 20 less fuel consumption and up to 50 reduction in emissions compared to a STIHL 2-stroke engine of the same power output without 2-MIX technology.
The lowest price for Stihl MS 391 Farmboss 3.3kW Petrol 50cm/20" Chainsaw (1140-200-0689) right now is $1,046.09 at eBay.com.au, compared across 19 retailers.
The all-time low was $1,000.00 on 1 Mar 2026 — today's price is 5% above the lowest ever. This is at or near its all-time low — a good time to buy.
Prices last updated 10 June 2026.
Last updated at 10/06/2026 07:00:06
Stihl MS391 Chainsaw
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STIHL - MS 391 FarmBoss Chainsaw (50cm)
Stihl MS 391
STIHL MS 391 FarmBoss Chainsaw – 50cm Bar, 64.1cc Engine, High Power
Delivery between Thu – Tue $40
MS 391 Petrol Chainsaw - Professional Forestry Petrol Chainsaw, 20"
Delivery $47.63
Stihl FarmBoss Petrol Chainsaw MS 391 500mm/20"
Delivery $10
STIHL MS 391 50cm/20" Petrol Chainsaw
Delivery between Fri – Tue $47.05
Stihl MS 391
Stihl MS 391 FarmBoss
MS 391 FarmBoss
originally posted on charlies.co.uk
Very good saw, just as you would expect. Delivered on time. Very happy with the service that you gave. Will not hesitate to use you again or recommend you to other people.
originally posted on Ace Hardware
Great saw!
originally posted on Blain's Farm & Fleet
Great saw, much easier to start then my old 291 and the extra power is a plus. The anti-vibration is way better my arms stay loose. I cut only hardwood, Beach and Oak with the other's. No softwood so thats what test a saw ability. My only complaint is the original muffler kept vibrating loose and completely broke away all the metal so i had to buy the new style which stihl should have given me. That one vibrated loose also but locktite and know how fixed it. Great saw hope they leave it alone. No computer or emission changes needed, the EPA is killing all great working products.
Stihl MS391 Chainsaw
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
STIHL - MS 391 FarmBoss Chainsaw (50cm)
Stihl MS 391
STIHL MS 391 FarmBoss Chainsaw – 50cm Bar, 64.1cc Engine, High Power
Delivery between Thu – Tue $40
MS 391 Petrol Chainsaw - Professional Forestry Petrol Chainsaw, 20"
Delivery $47.63
Very good saw, just as you would expect. Delivered on time. Very happy with the service that you gave. Will not hesitate to use you again or recommend you to other people.
Great saw!
Great saw, much easier to start then my old 291 and the extra power is a plus. The anti-vibration is way better my arms stay loose. I cut only hardwood, Beach and Oak with the other's. No softwood so thats what test a saw ability. My only complaint is the original muffler kept vibrating loose and completely broke away all the metal so i had to buy the new style which stihl should have given me. That one vibrated loose also but locktite and know how fixed it. Great saw hope they leave it alone. No computer or emission changes needed, the EPA is killing all great working products.
I bought the 391 in 2019 and bought Stihl premix for the break-in period. The engine started to shut off after half hour of usage and wouldn’t start. I thought it was flooded, but even with unflooding procedure, it wouldn’t start. Stihl dealer told me you have light piston scoring, and Stihl wouldn’t cover it. But the compression was 140+ PSI. I kept using it few more time (half hour at a time), then it wouldn’t start anymore. Come to find out that the side cover of the engine just fell off. See pics
Bought mine 8 months ago always startes on 2 or 3rd pull. I just set it and it eats with its own weight. I cut about 20 cords and just had to get new blade. It is heavy but the power is worth the weight. Was tired of buying a new chainsaw every 2 years so spent the money.
Amazing saw. Cuts like butter with a sharp chain.
This saw is very powerful for its size and weight and cuts extremely well. It is very well engineered and cuts timber along its full bar length with ease. It starts very easily even without the decompression valve and cuts 20" pine logs like they're butter.
i was going to buy something a little smaller to cut some hardwood stumps down - glad i didnt - this saw had to work for that job but did it without any major grizzles. Absolutely can cut hardwood its entire length - key to any chainsaw..... keep the chain sharp. this is a strong piece of equipment considering its physical size. along with a smaller electric chainsaw im confident i can tackle anything on my lifestyle block with ease.
