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 (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 depending upon which powerhead it is installed.
Model Features
  • 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
  • Zoom
    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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    Complete Filing Kits
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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

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Are you ready for a STIHL?

MS 251 WOOD BOSS® is rated 4.4 out of 5 by 179.
Rated 1 out of 5 by from Failed after one tree Brand new - I bucked *maybe* half a cord of wood in one afternoon and this saw is toast! Completely disappointed in the saw and I ran it by the book. I watched every Stihl video and read the manual cover to cover before I even started it up. The saw & all of the associated Stihl protective and maintenance equipment was cheaper than hiring a tree guy to take care of one tree that fell onto my neighbor's property in a windstorm. NOT WORTH IT. At the end of day one with the saw, the bushing that is supposed to be clipped in place between the shaft and flywheel was GONE. Lots of wear on the shaft, clutch and flywheel black from heat, chain dried out. Hingham Lumber told me the bushing has actually melted, because I ran the saw with a dull blade...interesting considering it is brand new. Everyone I asked for advice told me to pay up for a Stihl. Shocked that this happened and t ruly disappointed in the product
Date published: 2017-01-09
Rated 5 out of 5 by from Lots of power I have had several brands of saws. But the 251 wood boss is the best. Yes it costs a little more than the ones you get at the Home Depot or Lowes. However it has the power to get thru large trees very quick. You are not fighting the saw to do the work, The wood boss does the work for you. Great on fuel, easy to start. Don't wast your time or money on any other brand. If you need to clear out trees from your land this is the saw to get.
Date published: 2016-12-22
Rated 5 out of 5 by from wood boss this saw is one of the best tools for a home owner.it's easy to use,light weight,starts quickly and is very efficient. this saw came in handy after hurricane matthew as we lost a few trees and branchs,it made quick work of cleanup.
Date published: 2016-11-30
Rated 5 out of 5 by from exactly what I expected This is my 3rd Stihl product. Bought it because I was very satisfied with other purchases. Stihl chain saws are exceptional and perform flawlessly.
Date published: 2016-11-19
Rated 5 out of 5 by from Great Chainsaw I purchased this Stihl chainsaw to replace a lesser known brand and I was glad I did. The Stihl is a beast. I love this chainsaw and I will never own anything but a Stihl from now on.
Date published: 2016-11-17
Rated 5 out of 5 by from Great saw! Straight from the store, this saw started and ran fantastically. Having grown up on a farm with a father who was a professional logger for a period of time in the 70's; I have been around chainsaws all my life. They were universally old and while in fair repair, difficult to start. Starting the Wood Boss is a dream! Generally one easy pull and it is idling reliably.
Date published: 2016-11-15
Rated 5 out of 5 by from Outstanding Quality as I have come to expect from STIHL! I have owned the MS 251 Wood Boss about 30 days now. It is easy to start cold, if you follow the directions. Always starts on the first pull when warm. I have cut down about 20 trees now with it and I am totally impressed with the saw. It's light weight and easy on fuel.The chain oiler works great and servicing the saw is easy. It's one great saw!
Date published: 2016-11-14
Rated 4 out of 5 by from Lemon Had the saw less than a year. Hard starting, Eventually wouldn't start. Service found low compression, sidewall of piston scratched, pitting at the top of the cylinder and muffler full of junk. Replaced the saw. Hope the new one lasts longer. Had a wood boss years ago and NOT a problem.
Date published: 2016-11-14
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