A powerful and fuel-efficient chainsaw that’s comfortable to use.
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.
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.
STIHL OILOMATIC Saw Chain
STIHL makes its own saw chains.
Includes a polymer ramp reservoir that holds bar oil until it can be picked up by a passing chain. This can reduce oil usage by up to 50%.
They help prevent pull-in and provide better control, making cuts easier.
Spark Arrester Muffler
Has large baffles which reduce noise levels and contain a screen designed to reduce the emission of sparks.
STIHL Quickstop® Chain Brake System
Designed to stop the chain in fractions of a second. Can be manually activated by inertia if the kickback force is sufficient.
Front Hand Guard
Designed to reduce the risk of injury.
Designed for a secure grip and ergonomically angled for comfort.
Protected Spark Plug
Protected, yet easy to change.
Large Starting Handle
Easy to grip
Smooth Clean Design
Has no rough edges to snag on clothing or brush.
Air Filter Cover
Easy to remove for fast and easy filter cleaning or replacement.
Master Control Lever™
Is a single lever operating the choke, starting throttle lock and on-off switch.
Rear Hand Guard
Reduces the risk of injury as well as provides a wide area for foot placement during starting.
High-Tech Polymer Housings
Lightweight, withstand greater impact, and are corrosion-resistant.
Translucent Fuel Tank
Allows operator to easily check fuel level before starting work.
Helps reduce operator fatigue.
Provides easier starting and smoother running.
Replaceable “In Tank” Fuel and Oil Filters
Lower cost and are easy to maintain.
Inboard Chain Brake
Requires less maintenance and makes saw chain sprocket easier to remove.
Automatic Bar and Chain Oiler
Lets the operator concentrate on cutting, not bar lubrication.
Helps reduce the risk of operator contact by a chain if it should break or derail.
Throttle Trigger Lockout
Must be depressed before the trigger can be activated.
Other STIHL homeowner chainsaws
- STIHL MS 170
- STIHL MS 171
- STIHL MS 180
- STIHL MS 180 C-BE
- STIHL MS 181 C-BE
- STIHL MS 211
- STIHL MS 211 C-BE
- STIHL MS 250
- STIHL MS 251 C-BE