Stihl MS391 Chainsaw

STIHL MS 391 Chainsaw

Available through Ekin Traktors

The STIHL MS 391 is a high-powered petrol chainsaw designed for demanding agricultural, forestry, and construction tasks. Built with STIHL’s rugged 2-MIX engine and modern anti-vibration system, this model offers the ideal balance of cutting performance, fuel efficiency, and long-lasting durability.

With up to 3.3 kW of power and support for long guide bars up to 50 cm, the MS 391 is the go-to solution for firewood processing, felling medium trees, and heavy-duty property maintenance — now available through Ekin Traktors.

Key Specifications

Power Source: Petrol (2-stroke)
Displacement: 64.1 cm³
Power Output: 3.3 kW (4.5 hp)
Bar Length Options: 40 cm / 45 cm / 50 cm
Chain Type: 3/8″ RS or RM
Dry Weight (Excl. Bar & Chain): Approx. 6.2 kg
Fuel Tank Capacity: 600 ml
Oil Tank Capacity: 350 ml

Engine & Powertrain

Engine Type: STIHL 2-MIX engine (EU Stage V compliant)
Fuel Mix Ratio: 50:1 (petrol:2-stroke oil)
Rated Output: 3.3 kW
Ignition System: Electronic
Cooling: Air-cooled system

Designed for powerful cutting with lower emissions and reduced fuel consumption, the MS 391’s advanced engine delivers strong torque and smooth throttle response in tough conditions.

Cutting System

Bar Lengths Available: 40 cm, 45 cm, or 50 cm
Chain Type: 3/8″ Rapid Super (RS) or Rapid Micro (RM)
Chain Tensioning: Side-mounted chain tensioner
Chain Lubrication: STIHL Ematic system (efficient and automatic)

The MS 391’s cutting system provides aggressive performance for tough wood types, enabling efficient felling, bucking, and limbing in both hardwood and softwood applications.

Dimensions & Weight

Length (With 45 cm Bar): Approx. 900 mm
Weight (Dry): Approx. 6.2 kg
Power-to-Weight Ratio: Approx. 1.9 kg/kW
Sound Pressure Level: 103 dB(A)

Despite its high engine output, the MS 391 is well-balanced and offers manageable handling for experienced users performing sustained heavy-duty tasks.

Braking & Safety

Chain Brake: STIHL QuickStop (inertia-activated)
Throttle Interlock: Yes
Anti-Vibration System: Integrated (lowers operator fatigue)
Hand Guards: Front and rear standard

Designed for professional-grade safety, the MS 391 incorporates fast-acting braking systems and durable protective components for secure use in rugged environments.

Handling & Controls

Starter System: Manual start with decompression valve
Grip Design: Ergonomic, anti-slip handles
Chain Adjustment: Tool-based side tensioning
Control Layout: Master control lever (choke, start, throttle, stop)

Built for long cutting sessions, the MS 391 offers intuitive control access, reduced vibration levels, and excellent grip for safe, efficient operation in all conditions.

Service Capacities

Fuel Tank: 600 ml
Oil Tank: 350 ml
Air Filter: Long-life HD2 filter system
Spark Plug: NGK BPMR7A or equivalent

With accessible service points, tool access covers, and long-life components, the MS 391 is designed for easy maintenance and reduced downtime in high-demand operations.

Use Cases

• Professional firewood production

• Medium tree felling and cross-cutting

• Forestry and agricultural applications

• Construction and land clearing

• Sawmill and timber yard work

Final Thoughts

The STIHL MS 391 Chainsaw is engineered for professionals and experienced users who demand high power and endurance from their cutting tools. With its fuel-efficient engine, robust design, and advanced safety features, the MS 391 delivers reliable performance in the most challenging outdoor tasks. Available now through Ekin Traktors, this chainsaw stands as a powerful partner for any serious land or forest operation.