Stihl MS 391 Chainsaw

SKU:11400113034SET

€855.00

~~€885.00~~ €855.00

-3% Sale Sold out

Bar Length 18" 20"

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Easy-to-manage, high-torque chainsaw for improved performance and user comfort when harvesting wood or sawing firewood. High torque over a wide range of speeds. Up to 20% less fuel consumption and up to 50% lower emissions compared with the previous model without 2-MIX technology.
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.

Exterior design of STIHL guide bars are subject to change. Technical specifications remain the same.

Powerful all-purpose petrol chainsaw for firewood and timber construction
Practical decompression valve for efficient starting
For work in agriculture, construction, and horticulture
Long service intervals due to the long-life air filter system

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TECHNICAL DETAILS

Bar length	45-50 cm
Bar length	18-20 in
Displacement	64.1 cm3
Capacity	3.91 cu-in
Rollomatic E, cutting length	40 cm
Tank volume	0.60 l
STIHL Oilomatic saw chain pitch/type	3/8" RM
Speed at maximum power	9500 rpm
Bumper spike	Steel claw
Power output	3.2/4.5 kW/bhp
Cylinder	Chrome
Filter material	Non-woven fabric
Oil pump	Adjustable
Additional features	Ematic chain lubrication system
Filter	Cartridge filter
Sprocket	Profile sprocket
Weight	6.2 kg ¹⁾
Chain tensioning	Lateral chain tensioning
Anti vibration system	Standard AV-System
Handle type	Standard grip
Exhaust	Standard silencer
Filler cap	WTV tool-free tank cap
Chain pitch	3/8"
Carburettor	Flush template / carburettor heating / compensator / limiter caps
EPA Certified fuel consumption	0.47 glh
EPA Certified fuel consumption	1.779 l/h
Power-to-weight ratio	1.9 kg/kW
Oil tank volume	350 cm3
Weight	7.33 / 7.45 kg ²⁾
Sound pressure level	105 dB(A) ³⁾
Sound power level	117 dB(A) ³⁾
Vibration values left/right	4/4 m/s² ⁴⁾
STIHL Oilomatic saw chain pitch/type	3/8"
CO²	755 g/kWh

Features

Standard features

Decompression valve
The decompression valve is part of the easy starting system. The valve should be pressed before starting to reduce the compression pressure when starting, as well as reducing the effort needed to pull the starter rope. The decompression valve is semi-automatic; it must be pressed manually before starting, but then closes automatically.
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.
Variable-displacement oil pump
Allows a precise, demand-based delivery of oil. It's possible to reduce oil production by up to 50% in the E position. For very long cutting attachments or very dry wood, an additional volume of oil can be added by the user. similar to illustration.
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.

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.