Masseys DIY Store

Stihl MS251 Chainsaw


, , ,

The Stihl MS 251 chainsaw is a 45.6cc chainsaw with a 3.0 bhp power output. The Stihl MS251 chainsaw is ideal for a variety of applications, from cutting firewood to timber construction.

Masseys will

  • Assemble your chainsaw
  • PDI your chainsaw
  • Give you instruction on how to use you chainsaw.
  • As we PDI and register your chainsaw you can be sure you WILL get your 2 years domestic warranty.

Large Stihl display

The Stihl MS251 chainsaw with an 18″ bar is the largest petrol chainsaw in Stihl’s category for property maintenance and cutting firewood. At Masseys we class this saw as the top of the range domestic saw!

The Stihl MS251 chainsaw has a 45.6 cc engine with a 2.2 kW / 3.0 hp power output and the machine weighs 5.2 kg without the bar and chain. It is suitable for grounds keeping and heavier work. The chainsaw has the larger .325 RM Stihl chain and the anti-vibration system means the vibration level left / right (m/s2) are 3.9/3.9. The chainsaw has a side-mounted chain tensioning system so it keeps your hands away from the chain.

Your chainsaw will be assembled and PDI’d for you to take away with you. We will also show you how to use your chainsaw.

Get up to 3 years warranty at Masseys

Motomix® domestic warranty extension – Extend your domestic warranty from 2 to 3 years with the purchase of 5 litres of STIHL Motomix® fuel and a qualifying product at the same time, in store. This includes the Stihl MS251 at Masseys, Swadlincote.

Motomix warranty extension

What else will I need to buy with my chainsaw?

    • 2-Stroke Oil.
      Stihl Moto mixWe advise STIHL MotoMix® which is Stihl’s patented premixed fuel, specially blended for ultimate performance. Like a sports drink for your engine, this 50:1 mixture is a combination of premium non-ethanol, high-octane motor fuel and our highest-quality STIHL HP Ultra oil. Clean and convenient, MotoMix® eliminates the hassle of mixing your own 2-stroke engine fuel while providing superior performance and lubrication. STIHL MotoMix® contains no ethanol, allowing it to maintain stability for up to two years after the seal is broken – so it stays fresh in your equipment during long storage periods. MotoMix® is also made of non-aromatic fuel and fully synthetic, highly biodegradable engine oil.
    • Chain Oil
      Chain lubricant promotes smooth operation by keeping the chain clean and free-running on the guide bar.
    • Optional Extras
      Chainsaw files, replacement bars and chains, chainsaw safety equipment (PPE) and log saw horses. All available in store at Masseys.


Stihl MS251 Chainsaw Specification

Displacement: 45.6 cm³

Weight: 4.9 kg 

Power-to-weight ratio: 2.2 kg/kW 

Power output: 2.2/3.0 kW/bhp 

Vibration levels left/right: 3.9/3.9 m/s² 

Oilomatic saw chain pitch/type: .325″ Rapid Micro 

Sound power level: 112.0 dB(A) 

Sound pressure level: 102.0 dB(A) 

Stihl MS 251 Chainsaw warranty: 1 year domestic / 1 year semi-professional.

Features of the Stihl MS251 Chainsaw:

Reduced-emission engine technology – 
2-stroke engine with stratified charge. A fuel-free layer of air is created between the burned charge in the combustion chamber and the fresh charge in the crankcase, reducing the amount of fuel lost during the charge cycle. This results in more power with a lower weight, up to 20 percent lower fuel consumption than regular 2-stroke engines and significantly reduced exhaust emissions.

Pre-separation air filtration system
STIHL long-life air filtration systems with pre-separation achieve perceptibly longer filter life compared with conventional filter systems. Air drawn in is swirled. The larger, heavier particles are ejected. The pre-cleaned air is routed to the air filter via the pre-separator duct.

Tool free filler caps
Special catches on the fuel and oil tanks for easy opening and locking without the need for tools.

Anti-vibration system
Intense vibration at the handles of power tools can lead to long-term effects on blood vessels in the hands and arms. STIHL has therefore developed an effective anti-vibration system whereby the oscillations from the machine’s engine are dampened which significantly reduces vibrations at the handles.

Ematic chain lubrication system
The Ematic chain lubrication system ensures pinpoint lubrication of the saw chain links and guide bar rails. When used with STIHL OILOMATIC saw chain, it will provide maximum lubrication, longer wear and less oil consumption than conventional methods of chain lubrication. The Ematic system can reduce bar oil consumption by up to 50 percent.

Single-lever master control
All important functions such as start, choke, throttle and stop are operated via a single lever.



Purchased from Masseys – If your chainsaw was purchased from Masseys and it develops a manufacturing fault during the warranty period, simply return the chainsaw to store and our mechanics will repair the machine free of charge. A warranty repair is when the machine has failed because of improper material or workmanship, under normal use and maintenance.

Purchased online – If you chainsaw was purchased from elsewhere, then we charge an initial £29.99 inspection charge to look at the machine. This will be refunded if the fault is a warranty issue and when the manufacturer has processed and accepted the warranty claim in full. Warranty for non-Masseys customers is 4-12 weeks as we have a duty to ensure our own customers are prioritised first.

Click to see all of our Stihl chainsaws, or the professional Stihl MS261. For more information about this saw then please refer to the Stihl owner’s handbook.

Bar Length

16" Bar, 18" Bar

You may also like…

stihl ms 251 chainsaw masseysStihl MS251 Chainsaw
£539.00£549.00Select options