STIHL MS 391 Petrol Chainsaw
The STIHL MS 391 Petrol Chainsaw delivers powerful high-torque performance, efficient 2-MIX engine technology, and dependable reliability for forestry, firewood preparation, tree felling, and demanding agricultural cutting applications.
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About the STIHL MS 391 Petrol Chainsaw
High-Torque Cutting Power For Demanding Outdoor Applications
The STIHL MS 391 Petrol Chainsaw delivers dependable cutting performance for demanding forestry, agricultural, and firewood preparation tasks. Designed for landowners, farmers, and regular users, it combines impressive torque with excellent durability and everyday comfort. Powered by the STIHL 2-MIX engine, it provides reliable performance while reducing fuel consumption and exhaust emissions. Its robust construction ensures dependable operation throughout demanding cutting applications.
Perfect for felling trees, harvesting timber, processing firewood, and general property maintenance, the MS 391 performs confidently in challenging conditions. High torque across a broad speed range delivers smooth, consistent cutting performance.
Efficient Engine With Advanced Performance
The advanced STIHL 2-MIX engine delivers 3.3kW of power while maintaining excellent fuel efficiency during demanding workloads. Fuel consumption is reduced by up to 20% compared with previous models. Exhaust emissions are also reduced by up to 50%.
The innovative STIHL four-channel engine technology optimises the fuel and air mixture before combustion begins. This improves combustion efficiency while delivering dependable engine performance. Strong torque remains available throughout demanding cutting applications.
Practical Design For Everyday Reliability
The convenient side-mounted chain tensioner allows quick chain adjustment without touching the sharp saw chain. Routine maintenance becomes faster, safer, and more convenient. Everyday operation remains simple and efficient.
The integrated compensator system helps maintain consistent engine performance as the air filter gradually becomes contaminated. Stable fuel delivery reduces unnecessary performance loss during extended use. Longer maintenance intervals improve productivity throughout demanding work.
Efficient Lubrication And Reduced Oil Consumption
The advanced Ematic chain lubrication system delivers oil precisely where lubrication is required during operation. This reduces chain oil consumption by up to 50% while maintaining excellent protection. Efficient lubrication helps extend guide bar and chain life.
The controlled-delivery oil pump automatically supplies oil according to cutting conditions for greater efficiency. The economical setting reduces unnecessary oil consumption during lighter work. Higher oil delivery can also be selected for demanding applications.
Comfortable Operation Throughout Longer Jobs
The integrated anti-vibration system reduces vibration transferred through the handles during extended cutting sessions. Lower vibration improves comfort while helping minimise operator fatigue. Longer working periods become easier and more productive.
The practical decompression valve lowers compression pressure before starting the engine. Less effort is required when pulling the starter cord. Starting the chainsaw becomes smoother and more comfortable every time.
Built For Dependable Long-Term Performance
The practical tool-free filler caps allow quick opening and secure closing of the fuel and oil tanks. Refuelling becomes faster without requiring additional tools. Everyday servicing remains quick, convenient, and straightforward.
Combining the STIHL 2-MIX engine, 3.3kW power output, four-channel engine technology, Ematic chain lubrication, controlled-delivery oil pump, side-mounted chain tensioner, anti-vibration system, decompression valve, compensator system, and tool-free filler caps, the STIHL MS 391 Petrol Chainsaw delivers outstanding cutting performance, efficiency, durability, and comfort for demanding forestry and agricultural applications.
This model comes with a 1 year professional warranty. T&C’s apply.
STIHL MS 391 Petrol Chainsaw Technical Information
- Cylinder Displacement: 64.1 cm³
- Power Output: 4.5 hp / 3.3 kW
- Weight Excluding Fuel, Guide Bar and Chain: 6.4 kg
- Weight to Power Ratio: 1.9 kg / kW
- Oilomatic Saw Chain Pitch: 3/8″
- Oilomatic Saw Chain Type: Rapid Micro
- AntiVibration system: Standard
- Side Mounted Chain Tensioning: Standard
- Chain Quick Tensioning: N/A
- QuickStop Super Chain Brake: N/A
- Manual Fuel Pump: N/A
- Decompression Valve: Standard
- ElastoStart: Retrofittable
- ErgoStart: N/A
- Compensator: Standard
- Long-Life Air Filter System: N/A
- Tool-Free Tank Top: N/A
- Catalytic Converter: N/A
- Intelligent Engine Management: N/A
- Vibrations Left Handle: 4.0 m/s²
- Vibrations Right Handle: 4.0 m/s²











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