STIHL MS 251 C-BE Petrol Chainsaw | 40 cm
Comfort version of the MS 251 with quick chain tensioning and ErgoStart
Product description
The STIHL MS 251 C-BE is the comfort version of the MS 251 and is particularly suited to longer sawing sessions when harvesting firewood in the woods. With its robust design, high cutting performance and well-thought-out comfort features, it suits home users and tradespeople who want to work powerfully and particularly comfortably. The ‘C’ in the name stands for Comfort, ‘B’ for quick chain tensioning and ‘E’ for ErgoStart.
Common problems
During longer sawing sessions in the woods, the standard equipment shows typical comfort gaps:
- Tensioning the chain with a tool wastes time when frequent adjustment is needed in the woods
- Strenuous starting makes getting going harder, especially with several sawing sessions in a row
- Thicker trunks demand more robust technology than a pure entry-level saw offers
Solution
The MS 251 C-BE tackles this with tool-free STIHL quick chain tensioning (B) via a thumbwheel, effortless STIHL ErgoStart (E) and the durable .325″ RM3 Pro saw chain – two comfort upgrades over the standard MS 251, combined with the same powerful 2.2 kW STIHL 2-MIX engine.
Key features
- Comfort chainsaw with 40 cm RM3 Pro cutting attachment
- STIHL 2-MIX engine with 2.2 kW (3.0 hp) output
- STIHL quick chain tensioning (B) – tool-free retensioning via thumbwheel
- STIHL ErgoStart (E) for effortless starting
- Manual fuel pump for fewer starting pulls after breaks
- Durable .325″ RM3 Pro saw chain for continuous use in the woods
- Compensator keeps performance and consumption constant over time
- STIHL anti-vibration system for more comfortable working
Highlights
STIHL quick chain tensioning
A thumbwheel on the sprocket cover lets you retension the saw chain without tools – even in the middle of the woods, with no combination spanner.
STIHL ErgoStart
An additional spring between the starter rope rotor and the crankshaft reduces the effort needed to start by up to half. Handy with several sawing sessions in a row.
Powerful engine for thicker wood
The 2.2 kW STIHL 2-MIX engine offers more power reserves than the MS 231 C-BE – ideal for thicker trunks when harvesting firewood.
Durable RM3 Pro saw chain
The robust .325″ RM3 Pro chain is specifically designed for demanding continuous use in the woods and stays sharp for longer.
Manual fuel pump
Before starting, a press of the thumb pumps fuel into the carburettor. This reduces the number of starting attempts needed, especially after longer periods of storage.
Comfortable working
The STIHL anti-vibration system significantly reduces strain on arms and hands during longer work in the woods.
Technical data
| Part number | 1143 200 0671 |
| Displacement | 45.6 cm³ |
| Power | 2.2 kW / 3.00 hp |
| Weight without fuel | 5.1 kg |
| Bar length | 40 cm |
| Chain pitch | .325″ |
| Chain type | Rapid Micro 3 Pro (RM3 Pro) |
| Sound pressure level | 103 dB(A) |
| Sound power level | 114 dB(A) |
| Vibration value left/right | 3,9 / 3,9 m/s² |
In the box
- STIHL MS 251 C-BE petrol chainsaw
- 40 cm guide bar
- .325″ Rapid Micro 3 Pro (RM3 Pro) saw chain
- Combination spanner
- Operating instructions
Frequently asked questions (FAQ)
Who is the STIHL MS 251 C-BE suitable for?
The STIHL MS 251 C-BE is aimed at home users, farmers and tradespeople who want the same performance as the standard MS 251 but also value tool-free chain tensioning and effortless starting.
What does C-BE mean in the model name?
C stands for Comfort, B for tool-free STIHL quick chain tensioning and E for STIHL ErgoStart, which significantly reduces the effort needed to start.
How heavy is the chainsaw in use?
The saw weighs 5.1 kg without fuel – slightly more than the standard MS 251 due to the additional comfort mechanism.
Which bar length should I choose?
35 cm is suitable for most firewood work. If you regularly cut thicker trunks, the 40 cm version is a better choice.
What is included?
The chainsaw, matching guide bar, saw chain, combination spanner and operating instructions are included.
Safety information & manufacturer details
Using a chainsaw requires experience and safe handling of the tool.
Before first use, familiarise yourself with the operation and the applicable safety regulations.
Please also note the requirements for suitable protective clothing such as chainsaw trousers, safety boots, gloves and a safety helmet with face and hearing protection.
If you are unsure about operating the machine, we recommend a personal handover and instruction from an authorised STIHL dealer.
- Read the operating instructions and safety information in full before first use.
- Wear suitable personal protective equipment.
- Use chainsaws only for their intended purpose.
Manufacturer information
STIHL Vertriebszentrale AG & Co. KG
Robert-Bosch-Straße 13
64807 Dieburg, Germany
Phone: +49 6071 204-0
Email: kundenservice@stihl.de
Data use information (Regulation (EU) 2023/2854)
| Connected products | All STIHL products connected to ‘STIHL connected’. |
| Access to product data | Product data is available in the ‘STIHL connected’ application. The product must be added first. |
| Deleting the user account | When your organisation is deleted, all linked data is removed, subject to statutory retention obligations. |
| Product data collected | Operational readiness status, service information and runtime data. |
| Data format | CSV file (Excel-compatible). |
| Data volume | Less than 1 MB per connected product. |
| Collection | Continuously in real time. |
| Storage location | Cloud infrastructure of the STIHL Group. |
| Storage period | Until the organisation is deleted, taking statutory retention periods into account. |
