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Stihl MS391 20 Inch Petrol Chainsaw

£789.99 RRP £852.00
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Eligible for FREE standard delivery
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Stihl MS391 20 Inch Petrol Chainsaw

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Stihl MS391 20 Inch Petrol Chainsaw

Delight in this high-power 64cc chainsaw manufactured for demanding farming jobs or property maintenance, with the MS391 20” Chainsaw from Stihl. With excellent user comfort and cutting performance, the MS391 high torque engine operates over a wide range of speeds, making light work of harvesting wood and gliding through firewood for a cosy night by the fire!

The versatile, top of the range Chainsaw boasts an impressive range of economical and environmentally sound features thanks to the innovatively designed Stihl 2-Mix engine. Cutting harmful emissions by up to 50% and reducing fuel consumption by up to 20%, Stihl’s 2-Mix technology is the energy-efficient option compared to the previous model without a 2-Mix engine.

Delivering improved cutting performance whilst being compact and lightweight, this easy to use Chainsaw is fitted with Stihl’s anti-vibration system for maximum comfort and control, reducing hand fatigue during extended sawing periods. Both domestic users and farmers will value the simple setup and operation of the MS391, benefiting from a side-mounted chain tensioner and single angle-lever master control which will revolutionise tiresome gardening chores for the better!

Stihl manufacturers ensure their high-quality Chainsaws are crafted with durability and reliability in mind. Fitted with a pre-separation air filtration system, the long-lasting filter life of the high torque MS391 is protected as it naturally becomes clogged thanks to the carburettor’s compensator. Controlling the fuel-air mixture, these ergonomically designed measures maintain the engine power for consistent high-powered performance. Complete with automatic Stihl Ematic chain lubrication, the innovative MS391 regulates oil bar consumption for optimum durable wear of the chain.

Not quite the model you are looking for? Browse the full range of excellent quality Chainsaws and Replacement Parts today.

  • Suitable For: Farming, harvesting wood and cutting up firewood
  • Bar Length: 20”/50cm
  • Engine Displacement: 64.1cm3
  • Engine Power Output: 3.3kW
  • Guide Bar Type: Rollomatic E
  • Engine Type: 2-Stroke 2-Mix Engine
  • Weight: 9.2kg
  • Power to Weight: 1.9kg/kw
  • Tank Volume: 0.6L
  • Oil Tank Volume: 350cm3
  • STIHL Chain Pitch: 3/8”
  • STIHL Chain Type: RM (Rapid Micro)
  • Chain Gauge: .063”
  • Chain Break: Decompression valve Single-lever master control Advanced combustion technology Anti-vibration system Pre-separation air filtration system Compensator Side chain tensioner Variable-displacement oil pump Ematic chain lubrication system Tool free filler caps
Warranty Information
  • 2 Year Manufacturer Warranty


Our standard delivery is free if you spend over £75, however there are a small number of large and heavy products which require a delivery charge, if this is the case you’ll see this in the checkout before you pay.

If you spend under £75 then your standard delivery charge will either be £3.99, £5.99 or sometimes £9.95 depending on the size and weight of your order.

Some of our products will be shipped directly from suppliers and so might have slightly different timescales. If this is the case then it will clearly be indicated in the product information for your awareness. If you have any questions about this please don’t hesitate to contact us.


We hope that you’ll be happy with what you buy, however if you change your mind then you can return unwanted items within 14 days after purchase.

Items must:

- Be unused and in original condition, with all packaging, tags and labels intact.

- Have proof of purchase, such as a copy of your receipt or order confirmation.

We choose to keep the price of our products as low as possible and as such this unfortunately doesn’t allow for free returns. If you're returning an item because you've changed your mind, please contact us and we'll walk you through the simple returns process. You'll be able to track the parcels journey back to us, so we can process your refund in the quickest possible time. Please make sure that you sufficiently package up your return to prevent any damage as the goods are your responsibility until they reach our warehouse. We are able to arrange for a collection if that is easier for you, just get in touch and we can help with this.

Your refund will be processed within 14 days of reaching our warehouse using the same method that you paid with.


Please see our full Delivery & Returns for further information.

Since 1926, STIHL has been at the forefront of outdoor power tool development. Designed and engineered in Germany, every STIHL tool is developed for a specific purpose. Ease of use, lightweight ergonomic design and effortless power are hallmarks of STIHL and one of the reasons they're chosen by professionals.
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