STIHL MS 661 C-M Petrol Chainsaw
Extend your professional warranty by 1 year when you buy a STIHL Smart Connector! Click here for details.
Built for professional forestry, the STIHL MS 661 C-M Petrol Chainsaw delivers outstanding cutting performance, advanced fuel efficiency, and dependable reliability for the toughest large timber and harvesting tasks.
Frequently bought together
About the STIHL MS 661 C-M Petrol Chainsaw
Exceptional Professional Power For Large Timber And Forestry
The STIHL MS 661 C-M Petrol Chainsaw delivers outstanding cutting performance for demanding forestry and large timber harvesting applications. Designed for professional foresters and contractors, it combines exceptional power with impressive durability and efficiency. Powered by the STIHL 2-MIX engine, it produces 5.4kW of power while reducing fuel consumption and exhaust emissions. Its heavy-duty construction provides dependable performance throughout the most demanding professional workloads.
Ideal for felling large trees, processing heavy timber, and intensive forestry operations, the MS 661 C-M performs confidently under extreme conditions. Exceptional acceleration and sustained torque maximise productivity throughout every working day.
Intelligent Engine Performance
The advanced STIHL M-Tronic electronic engine management system automatically adjusts ignition timing and fuel delivery during operation. It continually adapts to temperature, altitude, and fuel quality without manual carburettor adjustment. Reliable performance is maintained throughout changing working conditions.
The powerful STIHL 2-MIX engine delivers exceptional torque across a broad operating speed range. Fuel consumption is reduced while maintaining outstanding cutting performance during demanding applications. Lower exhaust emissions also comply with the EU Stage V emissions directive.
Built For Maximum Productivity
The advanced HD2 air filter captures extremely fine dust while resisting water and oil contamination during operation. Cleaner airflow protects the engine while extending filter service intervals. Tool-free filter replacement also simplifies routine maintenance.
The integrated compensator system maintains consistent engine performance as the air filter gradually becomes contaminated. Stable fuel delivery reduces unnecessary maintenance interruptions. Longer service intervals improve productivity across demanding forestry applications.
Efficient Cutting And Lubrication
The advanced Ematic chain lubrication system delivers oil precisely where lubrication is required throughout cutting operations. This reduces chain oil consumption by up to 50% while maintaining excellent protection. Efficient lubrication helps extend guide bar and chain life.
A practical controlled-delivery oil pump automatically adjusts lubrication according to cutting conditions. The economical setting reduces unnecessary oil usage during lighter applications. Increased oil delivery can also be selected for demanding cutting conditions.
Comfortable Operation Throughout Every Working Day
The integrated anti-vibration system significantly reduces vibration reaching the handles during prolonged cutting sessions. Lower vibration helps minimise fatigue while improving operator comfort. Longer working days become easier to manage.
A practical decompression valve reduces the effort required when starting the engine. The convenient stop function automatically resets the controls after switching off. Warm restarts become quicker and more convenient.
Designed For Professional Reliability
The side-mounted chain tensioner allows quick chain adjustment without contacting the sharp saw chain. Tool-free filler caps simplify refuelling, while captive sprocket cover nuts prevent accidental loss during servicing. Everyday maintenance remains straightforward and efficient.
Combining the STIHL 2-MIX engine, 5.4kW power output, M-Tronic engine management, HD2 air filter, Ematic chain lubrication, controlled-delivery oil pump, anti-vibration system, decompression valve, side-mounted chain tensioner, and heavy-duty professional construction, the STIHL MS 661 C-M Petrol Chainsaw delivers exceptional power, durability, efficiency, and reliability for demanding professional forestry and large timber harvesting.
STIHL Warranty
The MS 661 C-M is covered for a period of 1 year from the date of purchase by the owner, when used for the designed purpose of that product by professional users. Terms and conditions apply. Garden Machinery Direct will register the warranty with STIHL for you
STIHL MS 661 C-M Petrol Chainsaw Technical Information
- Cylinder Displacement: 91.6 cm³ – 2-MIX
- Power Output: 7.3 hp / 5.4 kW
- M-Tronic: Yes
- HD2 Air filter: Yes
- Weight Without Fuel, Guide Bar and Chain: 7.4 kg
- Weight to Power Ratio: 1.4 kg / kW
- Oilomatic Saw Chain Pitch: 3/8″
- Oilomatic Saw Chain Type: Rapid Super Comfort
- AntiVibration System: Standard
- Side Mounted Chain Tensioning: Standard
- Chain Quick Tensioning: N/A
- QuickStop Super Chain Brake: N/A
- Decompression Valve: Standard
- ElastoStart: Standard
- Compensator: Standard
- Long-Life Filter System: N/A
- Tool-Free Tank Cap: Yes
- Catalytic Converter: N/A
- Heated Handle: N/A
- Vibrations Left Handle: 5.5 m/s²
- Vibrations Right Handle: 5.5 m/s²









Reviews
There are no reviews yet.