STIHL MS391 CHAINSAW 20'' BAR

The STIHL MS 391 is a powerful and durable 64cc petrol chainsaw built for demanding applications in agriculture, landscaping, and forestry. Supplied with a 50cm (20") guide bar, it delivers strong cutting performance for felling, firewood processing, and general heavy-duty work.

High-Performance 2-MIX Engine

Featuring advanced STIHL 2-MIX engine technology, the MS 391 provides impressive torque and cutting power while maintaining improved fuel efficiency and reduced emissions. This makes it both economical to run and capable of handling tough timber tasks.

A manual decompression valve assists with easier starting by reducing compression during ignition.

Advanced Filtration & Engine Protection

The MS 391 incorporates a pre-separation air routing system, which removes larger debris before it reaches the air filter — extending filter life and reducing maintenance frequency.

A built-in compensator ensures consistent engine performance even when the air filter begins to clog, helping maintain steady power output in challenging working conditions.

Efficient Chain Lubrication

Equipped with a controlled-delivery oil pump and STIHL’s Ematic system, the chainsaw delivers targeted lubrication to the bar and chain. This improves efficiency and reduces overall chain oil consumption.

User-Focused Design

Built for long working days, the MS 391 includes:

• Anti-vibration system to reduce operator fatigue
• Side-mounted chain tensioner for safer, easier adjustments
• Master Control Lever combining choke, on/off, and throttle lock
• Tool-free fuel and oil caps for quick refilling
• High-strength lightweight polymer housing for durability

Key Features

• 64cc high-performance petrol engine
• 20" (50cm) guide bar
• STIHL 2-MIX engine technology
• Pre-separation air filtration system
• Ematic chain lubrication system
• Manual decompression valve for easier starting
• Anti-vibration system
• Side-mounted chain tensioning