STIHL MS 661 C-M Petrol Chainsaw

Outstanding Cutting Power For Professional Forestry Applications

The STIHL MS 661 C-M Petrol Chainsaw delivers exceptional cutting performance for demanding forestry and large timber harvesting applications. Designed for professional foresters and contractors, it combines outstanding power with impressive durability and everyday reliability. Powered by the STIHL 2-MIX engine, it produces 5.4kW of power while reducing fuel consumption and exhaust emissions. Its robust construction provides dependable performance throughout intensive professional workloads.

Perfect for felling large trees, processing heavy timber, and tackling demanding forestry tasks, the MS 661 C-M performs confidently in challenging environments. Exceptional acceleration and sustained torque help maximise productivity across every job.

Advanced Engine Technology

The intelligent STIHL M-Tronic engine management system automatically adjusts ignition timing and fuel delivery throughout operation. It continually responds to temperature, altitude, and fuel quality without manual carburettor adjustments. Consistent engine performance is maintained throughout changing working conditions.

The efficient STIHL 2-MIX engine delivers impressive torque across a wide operating speed range. Lower fuel consumption helps reduce operating costs without sacrificing cutting performance. Reduced exhaust emissions also meet the EU Stage V emissions directive.

Built For Long-Term Productivity

The advanced HD2 air filter captures extremely fine dust while resisting oil and water contamination. Cleaner airflow protects internal engine components while extending filter service intervals. Tool-free filter replacement also makes routine maintenance quicker.

The integrated compensator system maintains consistent engine performance as the air filter gradually becomes contaminated. Stable fuel delivery helps reduce unnecessary servicing throughout demanding workloads. Longer maintenance intervals improve productivity every working day.

Efficient Lubrication And Smooth Operation

The advanced Ematic chain lubrication system directs oil precisely where lubrication is required during cutting. Oil consumption can be reduced by up to 50% while maintaining excellent chain protection. Efficient lubrication helps extend guide bar and chain life.

The practical controlled-delivery oil pump automatically adjusts lubrication to match changing cutting conditions. An economical setting reduces unnecessary oil usage during lighter applications. Additional oil delivery can also be selected when required.

Comfortable Performance Throughout The Day

The integrated anti-vibration system reduces vibration transferred to the handles during demanding cutting applications. Lower vibration improves comfort while reducing fatigue over extended working periods. Longer forestry sessions become easier to complete.

A practical decompression valve lowers compression pressure to make engine starting easier and smoother. The convenient stop function automatically resets the controls after shutdown. Warm engine restarts become faster and more efficient.

Designed For Demanding Professional Use

The side-mounted chain tensioner allows quick chain adjustment while keeping hands safely away from the cutting chain. Tool-free filler caps simplify refuelling, while captive sprocket cover nuts prevent accidental loss during maintenance. Everyday servicing remains straightforward and convenient.

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 forestry and large timber harvesting.