MS 251 C-BE Petrol Chainsaw
Top range domestic saw, the optimum choice for property maintenance
Overview
The new MS 251 C-BE featuring Quick Chain Tensioning (B) and ErgoStart (E) is ideal for a variety of applications, from cutting firewood to timber construction. This high torque engine is easy to start and comfortable to use, with a high cutting performance. Emissions are cut by 70% and fuel consumption is up to 20% lower compared to a STIHL 2-stroke engine of the same power output without 2-MIX technology.
Extend your domestic warranty from 2 to 3 years with the purchase of 5 litres of STIHL MotoMix® fuel and this product. Your STIHL Approved Dealer will register your extended warranty on the STIHL warranty database at point of purchase.
Instruction is necessary to recognize or assess the dangers of a chainsaw. Please wear protective clothing and equipment.
If anything is unclear, we recommend to order the chainsaw via Click & Collect and pickup up the chainsaw from a STIHL servicing dealer.
You can find videos showing you how to fill your machine with fuel and oil, fit bars and chains and start your chainsaw here.
Versions
Price-
MS 251 C-BE - 40 cm / 16"£635.00*
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MS 251 C-BE - 45 cm / 18"£645.00*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.
Product variations
- MS 251 Petrol Chainsaw Top range domestic saw, the optimum choice for property maintenance
Technical data
Technical data
| Technical data | Value |
|---|---|
| Displacement cm³ | 45.6 |
| Power output kW/bhp | 2.2/3 |
| Weight kg 1) | 5.1 |
| System weight kg 2) | 5.97 / 6.18 |
| Power-to-weight ratio kg/kW | 2.4 |
| Sound pressure level dB(A) 3) | 103 |
| Sound power level dB(A) 3) | 114 |
| Vibration values left/right m/s² 4) | 3.9/3.9 |
| STIHL Oilomatic saw chain pitch/type | .325" RM |
| Oil pump | Not adjustable |
| Tank volume l | 0.39 |
| Chain pitch | .325" |
| Chain tensioning | Chain Quick Tensioning |
| Sprocket - number of teeth | 7 |
| Filter | Long-term filter system / round cartridge filter |
| Bumper spike | Steel claw |
| Cylinder | Chrome |
| Oil tank volume cm3 | 200 |
| Sprocket | Sprocket profile |
| Anti vibration system | AV System, steel spring |
| Filler cap | Tools |
| EPA Certified fuel consumption l/h | 1.075 |
| CO2 g/kWh | 862 |
| Handle type | Standard handle |
| Speed at maximum power Um | 10.000 |
| EPA Certified fuel consumption glh | 0.284 |
1) Without fuel, without bar and chain
2) Unfueled, with guide bar and saw chain
3) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
4) K-factor according to DIR 2006/42/EC = 2m / s ²
The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.
Features
Standard features
The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.
Cutting Attachments
Cutting Attachments
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Rapid Micro (RM)
Good all-round comfort chain with low vibration levels, smooth cutting behaviour and low chatter.
Technical data Value Pitch .325" inch Drive link gauge 1.6 mm Drive link thickness 1.3mm/.050",1.5mm/.058",1.6mm/.063" Chain pitch 8.25mm/.325" Required File size 4.8mm / 3/16" Versions
Price- Rapid Micro (RM) .325", 1.6 mm, 56 drive links, 32 cm / 13" £27.30*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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Rapid Micro (RM)
Good all-round comfort chain with low vibration levels, smooth cutting behaviour and low chatter.
Technical data Value Pitch .325" inch Drive link gauge 1.6 mm Drive link thickness 1.3mm/.050",1.5mm/.058",1.6mm/.063" Chain pitch 8.25mm/.325" Required File size 4.8mm / 3/16" Versions
Price- Rapid Micro (RM) .325", 1.6 mm, 62 drive links, 37 cm / 15" £31.45*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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Rapid Micro (RM)
Good all-round comfort chain with low vibration levels, smooth cutting behaviour and low chatter.
Technical data Value Pitch .325" inch Drive link gauge 1.6 mm Drive link thickness 1.3mm/.050",1.5mm/.058",1.6mm/.063" Chain pitch 8.25mm/.325" Required File size 4.8mm / 3/16" Versions
Price- Rapid Micro (RM) .325", 1.6 mm, 68 drive links, 40 cm / 16" £33.50*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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Rollomatic E
The body of made of 3 eletrically-welded metal plates, the middle plate is extensively hollowed out. Low weight, high stability, available with small or large bar nose.
Technical data Value Bar length 35cm/14",40cm/16",45cm/18" Sprocket pitch 8.25mm/.325" Number of teeth on the sprocket 11 Pitch .325 Inch Groove width 1.6 mm Groove width 1.6mm/.063" Number of teeth 11 Bar type Stern-Rollomatic Bar connection 3.003.3005 Versions
Price- Rollomatic E, .325", 1.6 mm, 35 cm / 14" (MS 241 & MS 251 only) £48.45*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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Rollomatic E
The body of made of 3 eletrically-welded metal plates, the middle plate is extensively hollowed out. Low weight, high stability, available with small or large bar nose.
Technical data Value Bar length 35cm/14",40cm/16",45cm/18" Sprocket pitch 8.25mm/.325" Number of teeth on the sprocket 11 Pitch .325 Inch Groove width 1.6 mm Groove width 1.6mm/.063" Number of teeth 11 Bar type Stern-Rollomatic Bar connection 3.003.3005 Versions
Price- Rollomatic E, .325", 1.6 mm, 40 cm / 16" (MS 241 & MS 251 only) £52.05*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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Rollomatic E
The body of made of 3 eletrically-welded metal plates, the middle plate is extensively hollowed out. Low weight, high stability, available with small or large bar nose.
Technical data Value Bar length 35cm/14",40cm/16",45cm/18" Sprocket pitch 8.25mm/.325" Number of teeth on the sprocket 11 Pitch .325 Inch Groove width 1.6 mm Groove width 1.6mm/.063" Number of teeth 11 Bar type Stern-Rollomatic Bar connection 3.003.3005 Versions
Price- Rollomatic E, .325", 1.6 mm, 45 cm / 18" (MS 241 & MS 251 only) £55.65*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.
Accessories
Accessories
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STIHL Smart Connector
STIHL Connected is a cloud based system that enables professional users to digitally manage machine fleets and work assignments.
This is managed by the STIHL Smart Connector - a sensor with a diameter of just under 5cm, which is mounted on the tool. It can be mounted on petrol, electric or battery-powered tools where it records and saves the operating hours while the motor is running and transmits this information via Bluetooth® 4.2 to the STIHL connected App (the smart connector can be mounted on non-STIHL tools too). The Smart Connector offers entirely new functions and services, as a basis for device management both in your home garden using the STIHL connected App, and for managing your machine fleet using the STIHL connected Portal. The STIHL connected Portal gives you a detailed overview of the status of your fleet of tools, as well as information such as duration of use on a particular work assignment.
You can view power tool availability, analyse machine usage; plan and manage work tasks with associated resources; and analyse machine data, which you can then use to optimise your daily work processes. The Smart Connector also provides information about upcoming tool maintenance and, if needed, the system can arrange a workshop appointment directly with a STIHL Approved Dealer. Service-related tool data can also be shared with the dealer with your permission, so they can plan the servicing work in advance and order any necessary spare parts. This can shorten service times so the tool is quickly ready for use again.
STIHL Connected is an intuitive way to manage your machine fleet and workload intelligently and efficiently. Visit: STIHL connected FAQs to find out more.
Download the app for free or visit the STIHL connected Portal by clicking on the following links:
Technical data Value Dimensions (l x b x h) 53 x 42 x 14 mm Signal range Approx. 10 m Running time per battery charge Approx. 1 Year Connectivity Bluetooth low energy 4.2 Battery 3V CR 2.032 Versions
Price- Smart Connector £20.60*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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MotoMix
STIHL MotoMix is our patented premixed fuel, specially blended for ultimate performance. This 50:1 ready-mixed fuel is a combination of premium non-ethanol, high-octane motor fuel for all STIHL 2-stroke engines which gives you optimum performance, excellent cold start properties, maximum acceleration over the entire rpm range and perfect running characteristics even with a sudden rev change. With STIHL HP ultra premium oil for exceptional engine lubrication and extreme cleanliness, fully synthetic and biodegradable for optimal performance and long service life. User- and engine-friendly thanks to fewer emissions (free from ethanol; almost no olefins and aromatic compounds). Can be kept in storage for up to five years. Reliable top performance – STIHL 2-stroke engines and STIHL MotoMix are made for each other; all conceivable applications have been put through rigorous testing.
Find out more about our MotoMix promotion here.
Patent EP 2031043
Technical data Value Octane number >95 RON Octane rating 93 MOZ Aromatic content 0.1 % Vol. Benzene content 0.03 % Vol. Sulphur content 3 mg/kg Shelf life up to 5 Years Density at 15°C 690 kg/m3 Olefin content 0.1 % Vol. Vapour pressure at 40 °C 61 kPA Two-stroke oil content 1.8 % Vol. Versions
Price- MotoMix 5 l £20.00*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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Wooden sawhorse
Lightweight design. For cutting firewood with ease, max. load 70 kg.
Versions
Price- Wooden sawhorse £48.45*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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HP 2-stroke engine oil
Top selling mineral oil two-stroke engine oil. Specially developed for STIHL engines. Excellent lubrication and combustion properties. Performance class: JASO-FB, ISO-L-EGB. Fuel/oil ratio 50:1.
Versions
Price- HP 2-stroke engine oil - 1 l (for 50 l) metering bottle £15.46*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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Chainsaw bag
Made from sturdy nylon. For safe storage and transport of all chainsaws with bar lengths up to 45 cm / 18". With small additional pocket for accessories.
Versions
Price- Carry bag for chainsaws £37.10*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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2-in-1 EasyFile
Practical tool for quickly sharpening the teeth and depth gauge in a single action, significantly reducing chain maintenance time. The sturdy frame allows for a smooth filing action with highly accurate results. All the files are easily replaceable. For 1/4" P, 3/8" P, .325", 3/8" and .404" saw chains. Includes round and flat files.
To find out how to sharpen your chain and depth gauge with the EasyFile, click here.
Versions
Price- 2-in-1 file holder, .325" ø 4.8 mm £44.30*
* Manufacturer's recommended retail price updated as of July 2021. The manufacturer's recommended retail prices are subject to change without notice.
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The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.
Documents
Owners manuals and safety brochures
| Languages | Date | Link |
|---|---|---|
 en
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07/10/2020 |