MS 251 WOOD BOSS® - $329.95 DSRP

Distributor Suggested Retail Price
18 in. Bar

DSRP: $329.95


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

The STIHL MS 251 WOOD BOSS® Chainsaw is powerful, fuel-efficient and easy to use. Ergonomically designed to bring you maximum comfort during use, this tool produces 50 percent less emissions (as compared to previous models) for a smaller impact on the environment. The MS 251 WOOD BOSS® packs features like a Master Control Lever™ and easy-to-refill fuel and oil tanks, so you can worry less about st...Read More
Print Spec Sheets
MS 251 WOOD BOSS® Specifications
DISPLACEMENT 45.6 cc (2.78 cu. in.)
ENGINE POWER 2.2 kW (3.0 bhp)
POWERHEAD WEIGHT 4.9 kg (10.8 lbs.)
FUEL CAPACITY 390 cc (13.2 oz.)
CHAIN OIL CAPACITY 198 cc (6.7 oz.)
GUIDE BAR LENGTHS (Recommended ranges) 40 to 45 cm (16" to 18")
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.
Model Features
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    Built in the USA
    Indicates products that are built in the United States from domestic and foreign parts and components.

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    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.

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

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.
Click to view the STIHL Limited Warranty Time Periods
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Are You Ready for a STIHL?

MS 251 WOOD BOSS® is rated 4.4 out of 5 by 304.
Rated 5 out of 5 by from Best Chainsaw ever! I've had Craftsman and Huskvarna chain saws in the past and this Stihl leaves them in the dust (so to speak). I cut a lot of firewood every year, so I need a reliable chainsaw that allows me to get the job done efficiently. My Stihl starts easy, has lots of power and is light weight vs.capability. This is a truly great chainsaw.
Date published: 2018-03-14
Rated 5 out of 5 by from Great saw! Everyone I camp with has a stihl. Now I do also. Dependable!
Date published: 2018-03-12
Rated 4 out of 5 by from Starts and restarts, but dulls quick Power was sufficient, and relatively easy to start. Main issue was that I has to sharpen pretty frequently.
Date published: 2018-03-12
Rated 3 out of 5 by from It's just ok ! I have cut around 10-15 trees in my yard with the average tree being around 100' tall and the saw held up ok for what it is intended for,.. medium use. The chain came off the bar several times and kept coming lose. I think it's due to just having one nut to tighten down the bar and I'm use to the two nuts. I'm trying to get use to the goofy gas and oil caps but I really don't care for them. You have to get them lined up just right to be able to close them. I don't like fiddle farting around with them ,... I want to just fill and go ! I would have gotten a bigger saw in which I'm use to owning but I think they are overpriced. I think I prefer the Husqvarna chainsaws better but that's just me.
Date published: 2018-03-12
Rated 5 out of 5 by from Awesome chainsaw Awesome chainsaw and very glad I went with the multiple recommendations from friends and family. My neighbor’s tree opted to fall into my backyard and almost take out my house. 30feet of 20 inch diameter trunk and 16 inch limbs. The Wood boss earned its name and made quick work of that Saturday morning project. Bypass the big box stores folks and hit up your local dealers. You will be happy you did!
Date published: 2018-03-11
Rated 5 out of 5 by from Best saw I’ve ever owned I was in the market for a new saw when a huge wind storm pounded us for 48hrs. We lost 4 trees, power lines & auto damage... house is clear. I’ve run 5 fuel tanks through the saw & it is by far the best saw I’ve ever owned. Good power, well balanced & Very low vibration. I really like the tool less chain adjustment & the fuel & oily plug design. Also, I really recommend the easy start.
Date published: 2018-03-05
Rated 5 out of 5 by from Dependable, Hard working chain saw I bought this chainsaw after having multiple problems with my old inexpensive saw. As soon as I stepped up to a Stihl, I could feel the the difference when I cut wood. The saw starts easily hot or cold and performs well.
Date published: 2018-03-02
Rated 3 out of 5 by from This is a good all around size saw I have used several types and name brands of chainsaws and own several of them now. From the standpoint of someone who has been outdoors all his life and cleared thousands of acers ( mine- friends- and familys) Srihl and Husky saws are the top dogs for sure. As far as my newest saw the MS251 Stihl it is a lightweight easy start powerful mid size saw mine has been in the shop once due to the clutch was installed wrong at factory and the shop took 2 1/2 weeks to get it fixed, but since then I have had no issues. I have cleared about 2 acres with this saw so far, on my 5th gallon of fuel. I run Stihl mixture with 91 octane fuel in most of my saws ( I own 17 now plus I have a barn full of old no-running ones). Now my ISSUE with this saw - the design of the saw makes it hard to quickly clean around the oil cap while in the field the little lip around the cap catches dirt and grime. This is where I normally use a paintbrush and clean the area before refuelling because of that lip I have to pour fuel on the brush to get the grime out before opening the cap. The design of this saw needs reconsidered by the Stihl manufacturing company as with all other Stihls with this issue. All in all it is a good all around saw and a perfect size for most jobs around the farm. Dependable and easy to use easy start and lightweight great little saw for the homeowner just watch getting all that dirt - woodchips - and grime inside the oil tank.
Date published: 2018-02-10
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