MS 251 WOOD BOSS® - $329.95 DSRP


Distributor Suggested Retail Price
18 in. Bar

DSRP: $329.95

Quantity:

Reserve with STIHL Express for In-Store Pick Up

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.)
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.
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.

    More Information

  • Zoom
    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

  • Zoom
    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.
  • Zoom
    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: Cancer and Reproductive Harm - www.p65warnings.ca.gov
ADVERTENCIA: Cáncer y Daño Reproductivo - www.p65warnings.ca.gov
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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    Chain Pitch File Diameter File Guide
    Part Number
    Sharpening Kit
    Part Number
    in. mm in. mm Part Number
    3/8 PMN 9.32 5/32 4.0 0811 411 8073

    5605 750 4327

    5605 007 1026

    1/4
    3/8 PM
    6.35
    9.32
    5/32 4.0 0811 411 8091

    5605 750 4327

    5605 007 1027

    0.325 8.25 3/16 4.8 0811 412 8088

    5605 750 4328

    5605 007 1028

    3/8 9.32 13/64 5.2 0814 243 3384 5605 750 4329

    5605 007 1029

    0.404 10.26 7/32 5.5 0811 412 8108 5605 750 4330

    5605 007 1030

For Your Safety
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    Durable and hardworking, STIHL Pro Mark™ Dynamic Gloves deliver professional-grade hand protection. The palm and inner fingers are made of full grain tanned leather, so you can work with comfort without sacrificing a firm hold. Featuring multiple layers of cut-retardant materials – Avertic Pro and Dyneema fabrics by Engtex® – these gloves will help deliver protection without compromising the dexterity you need while operating a chainsaw. Accented with an orange rip-stop nylon backing, these dynamic gloves offer style and protection. Water repellant, breathable and featuring a Velcro wrist closure, STIHL Pro Mark™ Dynamic Gloves are as ready for the woods as you.
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Are You Ready for a STIHL?

MS 251 WOOD BOSS® is rated 4.3 out of 5 by 349.
Rated 5 out of 5 by from Excellent all around saw Nothing but good things to say after 5 years of ownership. Have trimmed trees to cutting up trees after hurricanes. Never let me down (knock on wood)LISTEN to the salesperson on how to START and MAINTAIN the saw.My MS251 requires me to move the start lever all the way down, pull until it tries to fire up (after 3 pulls - EVERY SINGLE TIME) then move the lever up 1 notch, then its 3 more pulls and it starts every time. Which I might add, is exactly what the dealer told my when I bought it. any deviation from that procedure and you might as well go find something else to do for an hour or so...Side note: I have used the Stihl premix fuel from day one. Its a little pricey but Im not a professional chainsaw user, so i dont mind the extra cost for the piece of mind that it can sit in the saw for months and cause zero damage.
Date published: 2018-07-15
Rated 5 out of 5 by from Great product for my jobs Great saw makes for easy removal of debris. Shopped several brands and glad to choose STIHL
Date published: 2018-07-13
Rated 3 out of 5 by from after a week its getting disappointing I have owned the saw for about 2 weeks now, At first is would start on the second pull. Now is about 10 pulls. Starts like my Stihl weed wacker. :-(
Date published: 2018-07-12
Rated 5 out of 5 by from Funky Start, but worth the effort Recently made a slight upgrade from the MS180 to get a little more power and larger bar/chain. I'm glad I went with the Wood Boss. Lots more saw (watch out for that kickback!), for not a lot more money. Not too heavy, and very comfy to operate. Starting is a little tricky due to all of the springs mounting the powerhead, but once you get passed that, its great. Much larger oil and fuel capacity which is nice, as I constantly had to refuel the 180. A word of advice, go for the MotoMix. Oldschoolers won't endorse it, but it saves a lot of time, mess, and headaches. Need to store it for months on end? No need to drain the fuel and run it dry, since it doesn't break down and gum up your carb! Great saw for the money and I'm happy to have made the upgrade. I really feel like I'm going to be hanging on to this saw for quite a while.
Date published: 2018-07-10
Rated 2 out of 5 by from Had to go back to Stihl only 3 weeks after purchase I purchased this saw less than a month ago Used it a couple of times (about 3-4 hours total) and It would not start. Took it back to store where purchased and they could not get it started either and said that it was something with the ignition and it had to go back for factory repair. I am very disappointed, especially since Stihl came so highly rated by my friends.
Date published: 2018-06-25
Rated 5 out of 5 by from I Love the saw Great saw! Does the job quickly and efficiently I really recommend it really really great saw
Date published: 2018-06-22
Rated 4 out of 5 by from one hot restart issue other than that runs like a dream I have used a lot of hand saws and chainsaws hands down the best gift my wife has given me except for our kids
Date published: 2018-06-15
Rated 4 out of 5 by from Great Saw, but I have had issues starting it. Great Saw, but I have had issues starting it. Once it starts, it has been great.
Date published: 2018-06-14
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