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Stihl MS 391 Farmboss 3.3kW Petrol 50cm/20" Chainsaw (1140-200-0689)
Stihl MS 391 Farmboss 3.3kW Petrol 50cm/20" Chainsaw (1140-200-0689)
Stihl MS 391 Farmboss 3.3kW Petrol 50cm/20" Chainsaw (1140-200-0689)
Stihl MS 391 Farmboss 3.3kW Petrol 50cm/20" Chainsaw (1140-200-0689)

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.

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.

Price comparison

Price data powered by pricesAPI.io

Last updated at 07/28/2026 13:15:12

eBay.com.au

$994.99

Stihl Ms391 Farm Boss Petrol Chainsaw

Free delivery

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!

eBay.com.au

$1,046.09

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!

Southside Mower Centre

$1,316.00

Stihl MS 391

barryfrancisshop.com.au

$1,395.00

STIHL MS391 PETROL CHAINSAW 64.1CC 20" BAR 6.2KG MS391

Delivery between 29 July – 7 Aug $67.39

Betontools Australia

$1,408.18

STIHL MS 391 - 50cm/20'' - FarmBoss Petrol Chainsaw 1140 200 0689

Free delivery

Mitre 10

$1,549.00

Stihl FarmBoss Petrol Chainsaw MS 391 500mm/20"

Delivery $10

Alliance Hardware

$1,549.00

STIHL MS 391 50cm/20" Petrol Chainsaw

Delivery between Thu – Mon $47.05

Mowerstore

$1,549.00

Stihl MS 391 FarmBoss

Motor Mecca Toowoomba

$1,549.00

STIHL MS391 Farmboss Chainsaw 20"

mcmwarrnambool.com.au

$1,549.00

STIHL MS 391 PETROL CHAINSAW

Free delivery

Price history

Price history

Reviews

2 June 2023Andrew H.

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.

Awesome
7 June 2023anonymous

originally posted on Ace Hardware

Great saw!

Decent price with the free shipping
17 March 2021Cmorrell308

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.

Price comparison

Updated about 22 hours ago
eBay.com.au

$994.99

Stihl Ms391 Farm Boss Petrol Chainsaw

Free delivery

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!

eBay.com.au

$1,046.09

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!

Southside Mower Centre

$1,316.00

Stihl MS 391

barryfrancisshop.com.au

$1,395.00

STIHL MS391 PETROL CHAINSAW 64.1CC 20" BAR 6.2KG MS391

Delivery between 29 July – 7 Aug $67.39

Betontools Australia

$1,408.18

STIHL MS 391 - 50cm/20'' - FarmBoss Petrol Chainsaw 1140 200 0689

Free delivery

Price history

Price history

Reviews

2 June 2023

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.

Andrew H. originally posted on charlies.co.uk
Awesome
7 June 2023

Great saw!

anonymous originally posted on Ace Hardware
Decent price with the free shipping
17 March 2021

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.

Cmorrell308 originally posted on Blain's Farm & Fleet
Engine defect and Stihl doesn't want to cover it
14 May 2022

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

Laith originally posted on Blain's Farm & Fleet
I would buy this product again
16 April 2023

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.

Richard originally posted on Ace Hardware
Ms 391
29 June 2022

Amazing saw. Cuts like butter with a sharp chain.

Chuck originally posted on Ace Hardware
Stihl MS 391Chainsaw
26 January 2021

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.

Alan A. originally posted on stihlshop.co.nz
impressive
7 September 2021

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.

Mike originally posted on stihlshop.co.nz