MS 291 Petrol Chainsaw

Versatile chainsaw for agriculture and farming

Durable 2.8kW petrol chainsaw is a practical all-rounder for farmers, landscapers and gardeners. With the economical 2-MIX engine, fuel consumption is reduced by up to 20% and emissions are cut by up to 50%. Featuring STIHL's long-life air filter system with pre-separation and professional anti-vibration technology, the MS 291 sets a new standard for this type of saw.

Extend your domestic warranty from 2 to 3 years with the purchase of 5 litres of STIHL MotoMix® fuel and this product. Your STIHL Approved Dealer will register your extended warranty on the STIHL warranty database at point of purchase.

Instruction is necessary to recognize or assess the dangers of a chainsaw. Please wear protective clothing and equipment.
If anything is unclear, we recommend to order the chainsaw via Click & Collect and pickup up the chainsaw from a STIHL servicing dealer.

You can find videos showing you how to fill your machine with fuel and oil, fit bars and chains and start your chainsaw here.

Versions Price
MS 291 - 40 cm / 16" £822.00*
MS 291 - 45 cm / 18" £834.00*
  • Technical data
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    Technical data Value
    Displacement cm³ 55.5
    Power output kW/bhp 2.8/3.8
    Weight kg 1) 5.6
    Power-to-weight ratio kg/kW 2
    Weight kg 2) 6.64 / 6.64 / 6.87
    Bar length cm 40-45
    Bar length " 16-18
    CO2 g/kWh 939
    STIHL Oilomatic saw chain pitch/type .325" RM
    Sound pressure level dB(A) 3) 103
    Sound power level dB(A) 3) 116
    Vibration values left/right m/s² 4) 4.5/4.5
    STIHL Oilomatic saw chain pitch/type .325"
    Tank volume l 0.50
    EPA Certified fuel consumption l/h 1,458
    Speed at maximum power rpm 9,500
    Bumper spike Steel claw
    Sprocket - number of teeth 7 Z
    Cylinder Chrome
    Filter material Nonwoven tissue
    Oil pump Not adjustable
    Filter Long-term filter system (pre-separation) / cartridge filter
    Sprocket Profile chain row
    Chain tensioning Lateral chain tension
    Anti vibration system AV + steel spring
    Handle type Standard grip
    Exhaust Standard silencer
    EPA Certified fuel consumption glh 0,385
    Filler cap WTV tool-free tank cap
    Chain pitch .325"
    Carburettor Carburetor preheating / compensator / limiter caps / standard carburetor,Carburetor preheating / compensator / limiter caps / standard carburetor / Kompensator / Limiter Caps / Standardvergaser
    Oil tank volume cm3 240

    1) Without fuel, without bar and chain
    2) Without fuel, with bar and chain
    3) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
    4) K-factor according to DIR 2006/42/EC = 2m / s ²

  • Features
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    Standard features

    • Advanced combustion technology

      Four overflow channels swirl the fuel-air mix before ignition, allowing for optimum combustion and highly efficient performance. The result is lower fuel consumption and high torque across a broad rpm range.

    • Anti-vibration system

      Intense vibration at the handles of power tools can lead to long-term effects on blood vessels in the hands and arms. STIHL has therefore developed an effective anti-vibration system whereby the oscillations from the machine's engine are dampened which significantly reduces vibrations at the handles.

    • Pre-separation air filtration system

      STIHL long-life air filtration systems with pre-separation achieve perceptibly longer filter life compared with conventional filter systems. Air drawn in is swirled. The larger, heavier particles are ejected. The pre-cleaned air is routed to the air filter via the pre-separator duct.

    • Compensator

      This controller in the carburettor prevents the fuel-air mixture getting richer as the air filter becomes clogged. The correct quantity of fuel is delivered to the carburettor depending on the quantity of air passing through the air filter. This keeps the fuel/air ratio in the combustion mixture constant and hence also the engine power. The filter doesn't need to be cleaned until an appreciable drop in power occurs.

    • Single-lever master control

      All important functions such as start, choke, throttle and stop are operated via a single lever.

    • Side chain tensioner

      The tensioning screw can be found on the side of the chain saw through the sprocket cover. This removes the need for contact with the sharp saw chain.

    • Ematic chain lubrication system

      The Ematic chain lubrication system ensures pinpoint lubrication of the saw chain links and guide bar rails. When used with STIHL Oilomatic saw chain, it will provide maximum lubrication, longer wear and less oil consumption than conventional methods of chain lubrication. The Ematic system can reduce bar oil consumption by up to 50%.

    • Tool free filler caps

      Special catches on the fuel and oil tanks for easy opening and locking without the need for tools.

  • Cutting Attachments
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    • Rollomatic E
      Rollomatic E

      The body of made of 3 eletrically-welded metal plates, the middle plate is extensively hollowed out. Low weight, high stability, available with small or large bar nose.

      Versions Price
      Rollomatic E, .325", 1.6 mm, 40 cm / 16" (MS 291 only) £49.90* Save and compare
      Save and compare
    • Rollomatic E
      Rollomatic E

      The body of made of 3 eletrically-welded metal plates, the middle plate is extensively hollowed out. Low weight, high stability, available with small or large bar nose.

      Versions Price
      Rollomatic E, .325", 1.6 mm, 45 cm / 18" (MS 291 only) £61.00* Save and compare
      Save and compare
    • Rapid Micro (RM)
      Rapid Micro (RM)

      Good all-round comfort chain with low vibration levels, smooth cutting behaviour and low chatter.

      Versions Price
      Rapid Micro (RM) .325", 1.6 mm, 67 drive links, 40 cm / 16" £37.88* Save and compare
      Save and compare
    • Rapid Micro (RM)
      Rapid Micro (RM)

      Good all-round comfort chain with low vibration levels, smooth cutting behaviour and low chatter.

      Versions Price
      Rapid Micro (RM) .325", 1.6 mm, 74 drive links, 45 cm / 18" £41.30* Save and compare
      Save and compare
  • Accessories
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    • HP Super 2-stroke engine oil

      Semi-synthetic oil with low-ash additives for clean low-smoke burning. 'Low-smoke oil' performance class: JASO-FD, ISO-L-EGD. Fuel/oil ratio: 50:1. Particularly recommended for STIHL 4-MIX engines. Recommended for STIHL 4-MIX engines.

      Versions Price
      HP Super 2-stroke engine oil - 1 l (for 50 l) metering bottle £18.62* Save and compare
      Save and compare
    • MotoMix

      STIHL MotoMix is our patented premixed fuel, specially blended for ultimate performance.

      This 50:1 ready-mixed fuel is a combination of premium non-ethanol, high-octane motor fuel for all STIHL 2-stroke engines which gives you optimum performance, excellent cold start properties, maximum acceleration over the entire rpm range and perfect running characteristics even with a sudden rev change.

      MotoMix uses STIHL HP ultra-premium oil for exceptional engine lubrication and extreme cleanliness. It’s fully synthetic and biodegradable for optimal performance and long service life. MotoMix is user- and engine-friendly thanks to fewer emissions (free from ethanol; almost no olefins and aromatic compounds).

      Can be kept in storage for up to five years.

      Did you know:

      • For MotoMix drums (55 l & 200 l), speak with your nearest STIHL Approved Dealer about direct delivery of the fuel to your preferred address. Find out more about our MotoMix promotion here.

      Patent EP 2031043


      Octane number RON >95
      Octane rating MOZ 93
      Benzene content % Vol. 0.03
      Sulphur content mg/kg 3
      Shelf life Years up to 5
      Density at 15°C kg/m3 690
      Olefin content % Vol. 0.1
      Vapour pressure at 40 °C kPA 61
      Two-stroke oil content % Vol. 1.8

      Versions Price
      MotoMix 5 l £21.99* Save and compare
      Save and compare
    • Metal sawhorse

      Robust design. Chain with spring tensioning secures the trunk for cutting, max. load 100 kg.

      Versions Price
      Metal sawhorse £96.50* Save and compare
      Save and compare
    • Chainsaw bag

      Made from sturdy nylon. For safe storage and transport of all chainsaws with bar lengths up to 45 cm / 18". With small additional pocket for accessories.

      Versions Price
      Carry bag for chainsaws £41.09* Save and compare
      Save and compare
    • 2-in-1 EasyFile

      Practical tool for quickly sharpening the teeth and depth gauge in a single action, significantly reducing chain maintenance time. The sturdy frame allows for a smooth filing action with highly accurate results. All the files are easily replaceable. For 1/4" P, 3/8" P, .325", 3/8" and .404" saw chains. Includes round and flat files.

      To find out how to sharpen your chain and depth gauge with the EasyFile, click here.

      Versions Price
      2-in-1 file holder, .325" ø 4.8 mm £49.22* Save and compare
      Save and compare
    • BioPlus chain oil

      Particularly eco-friendly with outstanding lubrication and adhesive properties. STIHL BioPlus is derived from plants and completely decomposes in the ground within a short space of time (tested according to OECD 301 B). It has been awarded the German 'Blue Angel' ecology mark and the European Eco-Label.

      Versions Price
      BioPlus chain oil - 5 l £42.26* Save and compare
      Save and compare
  • Documents
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    Owners manuals

* Manufacturer's recommended retail price updated as of May 2022. The manufacturer's recommended retail prices are subject to change without notice.

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.