STIHL MS 391 Chainsaw

STIHL MS 391 Chainsaw


Features & Specs

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Make
STIHL
Model MS 391
Available for In Store Pickup Only
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MS 391

STIHL engine technology means low fuel consumption, longer run times and reduced emissions in this high-powered chainsaw. The MS 391 features our newest engine technology that adds fuel efficiency while reducing emissions as compared to other models. Though equal in weight, the MS 391 is more powerful than the MS 311. Add to that an optimal power-to-weight ratio and you have a chainsaw that’s cut out for the big jobs in field, farm and ranch. Felling trees, cutting firewood and cleanup after the storm just got a whole lot easier with the rugged MS 391.


Built in USA Built in the USA
 Indicates products that are built in the United States from domestic and foreign parts and  components.
NatureReduced-Emission Engine Technology - Caring for Nature
The STIHL Inc. “Caring for Nature” seal identifies its powered products that are more environmentally conscious, producing zero or low exhaust emissions. STIHL Inc. defines “low exhaust emissions” as being cleaner than EPA and/or CARB exhaust emission standards.
Air Filtration System Pre-Separation Air Filtration System
This time-saving technology boosts the efficiency of the engine’s filter system, doubling the time between air filter cleanings. Air drawn into the engine is first separated via centrifugal force, ejecting the heavier dirt particles before being routed to the air filter. This pre-separation means less dirt to be captured by the air filter, resulting in less frequent cleaning and maintenance.
Anti-Vibration System Anti-Vibration System
 STIHL has developed a system for minimizing the vibration levels of handheld outdoor  power equipment. The STIHL anti-vibration system helps reduce operator fatigue and  provides a more comfortable working experience.
IntelliCarb Carburetor IntelliCarb™ Compensating Carburetor
 The IntelliCarb™ Compensating Carburetor is designed to automatically adjust the air/fuel  ratio when the air filter becomes restricted or partially clogged and maintains the engine’s  correct RPM. IntelliCarb™ uses air from the clean side of the air filter to control the  diaphragm and flow of fuel. As the air filter becomes dirty and less air is available for the  carburetor, the IntelliCarb™ system adjusts the fuel flow to compensate for the decrease  in air flow. This is in contrast to typical carburetors that utilize this air from the “dirty” side  of the air box.
Chain Tensioner Side-Access Chain Tensioner
 The side-access chain tensioner makes it much more convenient for the user to adjust  the saw chain with a bar wrench as opposed to the typical location of the guide bar  adjustment screw.
Oil Caps Toolless fuel and oil caps with retainers
 Simply lift the lever and twist the caps to remove or tighten. There‘s no need to use a tool  to tighten or loosen.
MS 391 Specifications
DISPLACEMENT 64.1 cc (3.9 cu. in.)
ENGINE POWER 3.3 kW (4.4 bhp)
POWERHEAD WEIGHT 6.2 kg (13.67 Ibs.)
GUIDE BAR LENGTHS* (Recommended ranges) 40 to 50 cm (16" to 20")
FUEL CAPACITY 600 cc (20.3 oz.)
CHAIN OIL CAPACITY 350 cc (11.8 oz.)
OILOMATIC® CHAIN 3/8" RS3
POWER SOURCE Gas
STIHL recommends #3624 (33 RS3 72) OILOMATIC® saw chain and 20" 3003 008 8921 STIHL ROLLOMATIC® Ematic™ guide bar combination. The actual listed guide bar length can vary from the effective cutting length depending upon which powerhead it is installed.

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†Some discounts may be available online only. Pricing may vary when purchased in-store. Pricing does not reflect freight, taxes or set-up fees.