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MS391 image
Stihl

Stihl MS391

STIHL's cutting-edge engine technology promises reduced fuel consumption, extended run times, and minimized emissions in this high-performance chainsaw. The MS 391 showcases our latest engine innovations, which enhance fuel efficiency and decrease emissions compared to previous models. Despite its equivalent weight, the MS 391 outperforms the MS 311 in terms of power. Coupled with its optimal power-to-weight ratio, this chainsaw is tailor-made for demanding tasks in the fields, farms, and ranches. Whether it's felling trees, cutting firewood, or storm cleanup, the rugged MS 391 simplifies even the most substantial jobs.

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Series Models

MS391

Gas, 13.67 lbs., 20" or 25" Bar, 3/8" RS3 Oilmatic Chain, 11.8 oz. Oil Capacity, 4.4 bhp, 20.3 oz. Fuel Cap., 64.1cc Discplacement
Item In-Stock Item is In-Stock!

Series Models

MS391

Gas, 13.67 lbs., 20" or 25" Bar, 3/8" RS3 Oilmatic Chain, 11.8 oz. Oil Capacity, 4.4 bhp, 20.3 oz. Fuel Cap., 64.1cc Discplacement
Item In-Stock Item is In-Stock!

MS391 Key Features:

  • Pre-Separation Air Filtration System: This time-saving technology significantly enhances the efficiency of the engine's filtration system, effectively doubling the interval between air filter cleanings. Incoming air undergoes a pre-separation process using centrifugal force, which ejects the heavier dirt particles before the air reaches the filter. Consequently, the air filter captures less dirt, leading to reduced cleaning and maintenance requirements.
  • Anti-Vibration System: STIHL's advanced anti-vibration system is designed to minimize the vibrations generated by handheld outdoor power equipment. This system substantially reduces operator fatigue, contributing to a more comfortable working experience.
  • Side Access Chain Tensioner: The conveniently positioned side-access chain tensioner simplifies the process of adjusting the saw chain using a standard bar wrench, as opposed to the conventional location of the guide bar adjustment screw.
  • Reduced-Emission Engine Technology – Caring for Nature: STIHL Inc.'s commitment to environmentally-conscious products is symbolized by the "Caring for Nature" seal. These powered products produce zero or low exhaust emissions, surpassing EPA and/or CARB exhaust emission standards and supporting a cleaner environment.
  • Intellicarb Compensating Carburetor: The IntelliCarb™ Compensating Carburetor is ingeniously designed to automatically adjust the air/fuel ratio when the air filter becomes obstructed or partially clogged, maintaining the engine's correct RPM. It utilizes air from the clean side of the air filter to manage the diaphragm and fuel flow. As the air filter accumulates dirt and restricts airflow, the IntelliCarb™ system compensates by adjusting fuel flow, in contrast to conventional carburetors that draw air from the "dirty" side of the air intake.

 

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Other Chainsaws


MS170 | MS180

A lightweight chainsaw designed for woodcutting tasks around the home.



MS171 | MS211

A lightweight, fuel-efficient chainsaw with reduced-emission engine technology.



MS211C-BE

A value-priced saw with advanced engine technology, Easy2Start™ and Quick Chain Adjuster.



MS180C-BE

With the Easy2Start™ system and Quick Chain Adjuster, this chainsaw is unbelievably easy to use.



MS194T

A top-handle chainsaw with the performance needed to work and less time fueling.



MS251

A powerful and fuel-efficient chainsaw that’s comfortable to use.



MS251C-BE

A powerful, fuel-efficient chainsaw that’s comfortable to use and easy to adjust.



MS261

Offering an optimized power-to-weight ratio, great fuel efficiency and convenience features.



MS261C-M

The same great MS261, but with advanced STIHL M-Tronic™ technology.



MS271

A high-performance, high-tech, fuel-efficient chainsaw.



MS291

A high-performance, fuel-efficient chainsaw. Great for felling, firewood cutting and storm cleanup.



MS311

Advanced engine technology improves fuel economy by up to 20% over previous models.



MS362

An optimal combination of torque, power and weight - all in one chainsaw.



MS362C-M

The MS 362 chainsaw plus our exclusive STIHL M-Tronic™ engine management technology.



MS400C-M

A powerful professional chainsaw with a lightweight magnesium piston.



MS462

The lightest STIHL professional gas-powered chain saw in its class.



MS462C-M

Lightweight, professional chainsaw featuring the STIHL M-Tronic™ engine management system.



MS462R C-M Rescue

Professional, lightweight saw with STIHL M-Tronic™ engine management and wrap handle.



MS500i

The MS 500i is the first chainsaw on the worldwide market w. electronic fuel injection.



MS661 Magnum

The MS 661 MAGNUM® delivers the professional power and rugged dependability you need.



MS661C-M

A professional chainsaw with enhanced fuel efficiency and STIHL M-Tronic™ technology.



MSA120C-B

The most powerful battery-powered chainsaw in the STIHL lineup.



MSA140C-B

An affordable battery-powered chainsaw delivering excellent cutting performance.



MSA160C-BQ

Innovative and surprisingly powerful STIHL Lithium-Ion battery-powered chainsaw.



MSA161T

The first lithium-ion top handle chainsaw in the STIHL Battery lineup.



MSA200C-B

A more powerful, more capable Lithium-Ion chainsaw - ideal for noise restricted areas.



MSA220C-B

The most powerful battery-powered chainsaw in the STIHL lineup.



GTA26

The first battery-powered garden pruner of its kind on the U.S. market.


Chainsaws


MS170 | MS180

A lightweight chainsaw designed for woodcutting tasks around the home.



MS171 | MS211

A lightweight, fuel-efficient chainsaw with reduced-emission engine technology.



MS211C-BE

A value-priced saw with advanced engine technology, Easy2Start™ and Quick Chain Adjuster.



MS180C-BE

With the Easy2Start™ system and Quick Chain Adjuster, this chainsaw is unbelievably easy to use.



MS194T

A top-handle chainsaw with the performance needed to work and less time fueling.



MS251

A powerful and fuel-efficient chainsaw that’s comfortable to use.



MS251C-BE

A powerful, fuel-efficient chainsaw that’s comfortable to use and easy to adjust.



MS261

Offering an optimized power-to-weight ratio, great fuel efficiency and convenience features.



MS261C-M

The same great MS261, but with advanced STIHL M-Tronic™ technology.



MS271

A high-performance, high-tech, fuel-efficient chainsaw.



MS291

A high-performance, fuel-efficient chainsaw. Great for felling, firewood cutting and storm cleanup.



MS311

Advanced engine technology improves fuel economy by up to 20% over previous models.



MS362

An optimal combination of torque, power and weight - all in one chainsaw.



MS362C-M

The MS 362 chainsaw plus our exclusive STIHL M-Tronic™ engine management technology.



MS400C-M

A powerful professional chainsaw with a lightweight magnesium piston.



MS462

The lightest STIHL professional gas-powered chain saw in its class.



MS462C-M

Lightweight, professional chainsaw featuring the STIHL M-Tronic™ engine management system.



MS462R C-M Rescue

Professional, lightweight saw with STIHL M-Tronic™ engine management and wrap handle.



MS500i

The MS 500i is the first chainsaw on the worldwide market w. electronic fuel injection.



MS661 Magnum

The MS 661 MAGNUM® delivers the professional power and rugged dependability you need.



MS661C-M

A professional chainsaw with enhanced fuel efficiency and STIHL M-Tronic™ technology.



MSA120C-B

The most powerful battery-powered chainsaw in the STIHL lineup.



MSA140C-B

An affordable battery-powered chainsaw delivering excellent cutting performance.



MSA160C-BQ

Innovative and surprisingly powerful STIHL Lithium-Ion battery-powered chainsaw.



MSA161T

The first lithium-ion top handle chainsaw in the STIHL Battery lineup.



MSA200C-B

A more powerful, more capable Lithium-Ion chainsaw - ideal for noise restricted areas.



MSA220C-B

The most powerful battery-powered chainsaw in the STIHL lineup.



GTA26

The first battery-powered garden pruner of its kind on the U.S. market.



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