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MS 251 WOOD BOSS®

MS 251 WOOD BOSS®
A powerful and fuel-efficient chainsaw that’s comfortable to use.

Product Description

The STIHL MS 251 WOOD BOSS® Chainsaw is designed to deliver all the power you’d expect from STIHL equipment, yet with a comfortable and ergonomic design. The MS 251 WOOD BOSS® is perfect for felling small trees, pruning and thinning, and cutting firewood simply and efficiently. And with up to 20 percent fuel savings and 50 percent reduced emissions (as compared to previous models), you can enjoy a longer run time while feeling good about your impact on the environment. Features like a Master Control Lever™ and reduced vibration make the STIHL MS 251 WOOD BOSS® a lean, easy-to-use machine that still packs plenty of power.

Model Features

  • Reduced-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.

    More information

  • Built in the USA
    Indicates products that are built in the United States from domestic and foreign parts and components.

    More information

  • Master Control Lever™
    The Master Control Lever™ is an easy to use single lever, operating the choke, starting throttle lock and on-off switch. The operator must pull the throttle trigger before moving the Master Control Lever™ to the choke position.
  • 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.

Specifications

DISPLACEMENT
45.6 cc (2.78 cu. in.)
ENGINE POWER
2.2 kW (2.95 bhp)
POWERHEAD WEIGHT
4.9 kg (10.8 lbs.)
FUEL CAPACITY
390 cc (13.2 oz.)
CHAIN OIL CAPACITY
198 cc (6.7 oz.)
OILOMATIC® CHAIN
.325" RM3
GUIDE BAR LENGTHS (Recommended ranges)
40 to 45 cm (16" to 18")
STIHL ROLLOMATIC®
POWER SOURCE
Gas
STIHL recommends #3634 (26 RM3 68) OILOMATIC® saw chain and 18" 3005 008 4717 STIHL ROLLOMATIC® E guide bar combination. The actual listed guide bar length can vary from the effective cutting length based on which powerhead it is installed on.

Important Information

* The actual listed guide bar length can vary from the effective cutting length based on which powerhead it is installed on.

WARNING! Improper use of any power tool may cause serious or fatal injury. Read, understand and follow carefully the operating and safety instructions in your instruction manual before using such products.

STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.

Reviews

MS 251 WOOD BOSS® is rated 4.4 out of 5 by 284.
Rated 5 out of 5 by from Cuts like butter Bought this saw to replace my ms170 was scared at first with all the negative about hard starting have no issues at all a lot of power and cuts like butter
Date published: 2018-01-06
Rated 5 out of 5 by from Great saw Plenty of power even when the chain is dull. I was concerned about it being finicky to start but no worries. Never been an issue. Very happy with my purchase.
Date published: 2017-12-24
Rated 5 out of 5 by from Great Saw I cut wood for personal use and sale a little...This saw is reliable and as long as it is maintained it works great
Date published: 2017-12-13
Rated 1 out of 5 by from This product is misleading I purchased this saw thinking it would be a saw with an 18 inch cutting length. The bar has 18" stamped on it, part number 3005 810 4717. The bar has a diagram that shows 18 inches from the face of the cutter head to the end of the bar. But measuring the distance with a tape measure it is only 16 inches. I would really like the saw if it has an 18 inch bar.
Date published: 2017-12-13
Rated 1 out of 5 by from Lost Compression - Blew up two pistons after owning it two years Lost compression on this saw. Found that the piston had a dime size hole through it after I tore it apart. I was using the proper oil fuel mixture with Stihl's brand of two cycle oil. Replaced the piston. Had the saw running again and later that day the piston lost compression again.I give up on this piece of garbage. Now I need a new saw and I am debating giving Stihl another try. My father has always purchased Stihl products but his MS 251 ended up blowing up as well. I feel like their quality has really gone down and I am not feeling like I want to get bit again by Stihl with another purchase. Even someone at the distributor stated he was surprised this saw lasted this long due to its poor reputation.
Date published: 2017-12-10
Rated 1 out of 5 by from Hard to start I bought this at rural king after irma hit our house pretty bad,right from the get go it was hard to start,it would die out while you were cutting the trees,I took it back to exchange it but rural king just serviced it and said it was just clogged up,but never work good afterwards,400 dollars was a lot of money for a chainsaw that doesn't work
Date published: 2017-11-29
Rated 5 out of 5 by from This is a perfect balance from the 311 for heavy work, and the 180 for trim up work. Overall, great saw for size and needed uses. Perfect saw for mid level work.
Date published: 2017-11-24
Rated 5 out of 5 by from Best Ever!!! This is the first Stihl chainsaw I ever purchased and am now asking myself "WHY?" It is down right there best one ever. Cuts like butter, stays sharp, starts with ease every time. I personally will never buy any other brand. Highly recommend Stihl products to everyone.
Date published: 2017-11-22
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Standard Features

  • Common Features for Chainsaws
    View the features common to many STIHL chainsaws.

You Will Also Need

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Support

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Product Instruction Manual (PDF)
Product Safety Manual (PDF)
STIHL Limited Warranty
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