Gold Ballarat
Gold Ballarat
STIHL MS 391 Farm Boss

STIHL MS 391 Farmboss 20" Bar Chainsaw


This MS 391 is a mid range power house with STIHL's engine technology means low fuel consumption, longer run times and reduced emissions in this high-powered chainsaw.

The MS 391 features the newest engine technology that adds fuel efficiency while reducing emissions as compared to other models.

Optimal power-to-weight ratio and you have a chainsaw that’s cut out for the big jobs on the farm or firewood collection.

We'll fill it with fuel and bar oil, run it and give you a run down on starting and tensioning the chain.

Upgrade to a 4 year warranty by purchasing a 1L HP Ultra Oil for $38 or a 4L Motomix (already mixed up) for $43.

Note: Not available for purchase online, must collect in store only.


Out of Stock
StrokeTwo Stroke Engine
Displacement64.1 cc
Power Output3.3 kW
Bar Length20"/50 cm
Weight (kg)6.2
WarrantyTwo Year Waranty & 1st Free Service
Pre-separation air filtration systemThe innovative long-life air filter system greatly extends the service life of the filter. Air routing removes larger particles of dirt, meaning the actual filter has less to do. So the saw can be use
Decompression valveThe decompression valve is part of the easy start-system. The valve should be pressed before starting in order to reduce the compression pressure when starting, as well as the effort needed to pull th
STIHL anti-vibration systemIntense vibration at the handles of power tools can lead to longer-term effects of blood vessels in the hands and arms. STIHL have therefore developed an effective anti-vibration system where by the o
Controlled-delivery oil pumpThe exact chain oil output can be adjusted maunally for varying conditions, allowing for a reduction of up to 50%.

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