STIHL MS 391 Petrol Chainsaw

From:£653.33£522.67£627.20 inc. vat

In Stock
  • 64.1 cc
  • 4.5 hp / 3.3 kW
  • 6.4 kg
  • 3/8″ Chain
  • 2 Mix Engine
  • Decompression valve
  • Home Delivery
  • Aftercare Package
  • Finance Available
SKU: N/A Category:

Additional Extras


Powerful engine gives excellent performance with user comfort of paramount importance when harvesting timber or sawing fire logs. High torque over a range of variable speeds. Up to 20% less fuel consumption and up to 50% lower emissions compared with models without 2-MIX technology.

This mid range power house of a saw is ideal for larger felling and logging. With the 64.1 cc motor producing 4.5 horses, this saw will impress most people and go through timber like you wouldn’t believe. Perfect for the landscaper, hobby forester, part time log merchant and farmers alike.

Additional information
Machine Power Type


Machine Class

Domestic, Professional

Machine Category



Tool Only NO Bar & Chain, 16" Bar & Chain, 18" Bar & Chain, 20" Bar & Chain

Technical Info

Technical Info

Technical data Value
Displacement cm³ 64.1
Power output kW/bhp 3.3/4.5
Weight kg 1) 6.2
System weight kg 2) 7.28 / 7.51 / 7.68
Power-to-weight ratio kg/kW 1.9
Sound pressure level dB(A) 3) 105
Sound power level dB(A) 3) 117
Vibration values left/right m/s² 4) 4/4
STIHL Oilomatic saw chain pitch/type 3/8″ RM
Oil pump Not adjustable
Tank volume l 0.60
Chain pitch 3/8″
Chain tensioning Side chain tension
Sprocket – number of teeth 7
Filter Round cartridge filter
Bumper spike Steel claw
Cylinder Chrome
Oil tank volume cm3 350
Sprocket Sprocket profile
Anti vibration system Standard AV-System
Filler cap Tools
EPA Certified fuel consumption l/h 1.779
CO2 g/kWh 755
Speed at maximum power Um 9.500
EPA Certified fuel consumption glh 0.47


STIHL AS System, AI Line and AK System cordless products are not covered under warranty when used by Professional Users (including Hire, Rental and Construction Industry, Farm and Estate).

* Subject to product registration and annual servicing (otherwise 2 years)
** Whole handlebar mechanism

Further info available here:

Product Type Years Domestic Years Professional
Standard 2 1
All batteries and chargers for cordless products shown in the current STIHL Sales Catalogue 2 1
STIHL High Pressure Cleaners 3 2
Extension of Domestic warranty from 2 to 3 years when purchased with 5 litres of MotoMix. Domestic customers can now extend warranty cover of selected machines, when purchased along with 5L of MotoMix. 2 to 3
Ignition modules – There is a 2 year warranty on ignition modules. 2
Spare Parts 1 1
2, 3, 4, 5, 6 and R Series Lawnmowers 5* 3 Months
R4, T4, T5 & T6 Series Ride-on Mowers 5* 3 Months
MB 4 RTP, MB 655 RS 5* 1
7 Series Lawn mowers 5* 1
Lawn Scarifier 5* 3 Months
Tillers and Shredders 2 3 Months
Lawn mower Deck 2, 3, 4, 5, 6 & R Series 10* 3 Months
Mono Handlebar 2, 3, 4, 5, 6 & R Series 10** 3 Months
Mono Handlebar 7 Series 10** 5**
iMOW® 5* 5*


Chainsaw Delivery

Please allow 3-4 days for delivery. It may arrive sooner than this but during busy times, delays can happen. We will let you know asap if any delays occur.

Your machine will arrive in a box and will require assembly, if you have any issues with this, please do not hesitate to make use of the included aftercare package included in the sale.

If you purchase your machine in our store, the machine will have been fully assembled by a trained technician, test run and tuned or calibrated to its optimum and all the packaging will get recycled. We will have also registered any warranty paperwork on your behalf.

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