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Stihl MS 391 Petrol Chainsaw

(7 customer reviews)

£721.63£776.06 (inc VAT)


The Stihl MS 391 is an all purpose all-rounder with an exceptional power to weight ratio. Robust and durable with a powerful engine that develops considerable torque without extra weight. The Stihl MS 391 is the perfect helper for a whole variety of sawing jobs on farms, orchards, gardens as well as for local authorities.The Stihl MS 391 is available with guide bar lengths 16″/40cm to 20″/50cm.

Standard features

  • Reduced-emission engine technology
  • Advanced combustion technology
  • Pre-separation air filtration system
  • Anti-vibration system
  • Tool free filler caps
  • Decompression valve
  • Compensator
  • Ematic chain lubrication system
  • Side chain tensioner
  • Single-lever master control

Technical data

Displacement cm³ 64.1
Power output kW/bhp 3.3/4.5
Power-to-weight ratio kg/kW 1.9
Weight kg 1) 6.2
Sound pressure level dB(A) 2) 105
Sound power level dB(A) 2) 117
Vibration values left/right m/s² 3) 4/4
STIHL Oilomatic saw chain pitch/type 3/8″ RM
Oil tank volume cm3 350
Tank volume l 0.60

Parts, Consumables + Accessories for this Chainsaw

Bar & Chain:




Service Kit:


Engine Oil (Good, Better, Best):

Chain Oil (Good, Better, Best):


Cleaning + Care:



Power Type


Bar Length

, ,




.063" (1.6mm)

7 reviews for Stihl MS 391 Petrol Chainsaw

  1. Peter Hinchliffe (verified owner)

    So far only used on one job, the 20” bar cut through 18” logs with ease with no strain on the engine. I only have this one experience to go on but I was impressed by its performance and totally satisfied with my purchase up to date, not too heavy and well balanced.

  2. Kenny Macaulauy (verified owner)

    Very good service go out there way to help you ms391 not to heavy

  3. Paul jackson

    Not had chance to use yet, but so far started it up revs fine, robust build don’t see many problems to be honest

  4. Pete Wilson (verified owner)

    Great service, Great bit of kit, ticks all the boxes

  5. Giancarlo Pia

    Bought this chainsaw on the recommendation of the sales dept at R&T and have not had a single issue with it in over 6 years of use. MS391 is an exceptional well made powerful chainsaw. I’ve moved up to a 20″ Guide Bar and it’s still got more than enough power for old oak and beech trunks. a great all-rounder.

  6. Martin dowd (verified owner)

    Great had a few hours cutting large oak very happy with it .
    Would highly recommend

  7. Ronnie wylie (verified owner)

    Absolutely brilliant saw highly recommended.

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