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STIHL MS 391

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Description

The STIHL MS 391 is a powerful gas-powered chainsaw built for felling trees, cutting firewood, and storm cleanup. It’s equipped with a decompression valve and STIHL IntelliCarb compensating carburetor for easier starting and consistent performance, while an anti-vibration system and bumper spikes support control through demanding cuts. Durable high-tech polymer housings and a side-access chain tensioner round out a saw built for repeated farm and ranch use.

Condition New

Specifications

Model STIHL MS 391
Power Source Gas
Engine Displacement 3.9 cu. in. (63.9 cc)
Engine Power 4.40 bhp (3.3 kW)
Fuel Capacity Not listed on manufacturer's product page
Chain Oil Capacity Not listed on manufacturer's product page
Device Weight (No Fuel, No Bar/Chain) 13.8 lbs. (6.3 kg)
Guide Bar Length (As Configured) 18" (45.7 cm)
Chain Type (As Configured) OILOMATIC® 33 RS3, 60 Drive Links

Features

Smart Engine Management

STIHL IntelliCarb Compensating Carburetor
Keeps the engine running at the correct RPM by compensating for a dirty air filter, helping extend time between service intervals.

Decompression Valve
A practical decompression valve reduces compression in the cylinder for easier, lower-effort starting.

Built for Control & Low Vibration

Anti-Vibration System
Reduces vibration transmitted to the operator’s hands and arms, helping limit fatigue during felling, bucking, and storm cleanup work.

Bumper Spikes
Help stabilize the saw against the wood and improve control during cutting and limbing.

Durable, Lightweight Construction

High-Tech Polymer Housings
Lightweight and corrosion-resistant, helping keep the saw easy to handle throughout the day.

Side-Access Chain Tensioner
Allows chain adjustment with a bar wrench from the side.

Toolless Fuel & Oil Caps with Retainers
Open and close by hand using a lever, no tools required.

Safe, Convenient Operation

Throttle Trigger Lockout
Must be engaged before the throttle trigger can be activated, helping prevent accidental acceleration.

Parts & Service Support

Backed by Parallel Ag’s Parts & Service Team
Parallel Ag’s expert parts and service team is here to keep your MS 391 cutting at peak performance, with knowledgeable staff across all our locations ready to support you throughout the lifetime of your machine.

Genuine STIHL Parts
STIHL replacement parts and accessories are made to the same high standards as those used on the assembly line. Talk to your local Parallel Ag parts team to get the genuine parts you need, fast.

Attachment Guidance
Not sure which guide bar length fits your job? Parallel Ag’s team can help you choose the right setup.

Financing Available
Ask your Parallel Ag dealer about financing options to help you equip your shop or yard without the upfront cost.