STIHL MS 261 Professional Chainsaw 4.1 HP M-Tronic 16-20 Inch Bar

Professional Performance for Forestry and Heavy-Duty Cutting

The STIHL MS 261 Professional Gas Chainsaw is engineered for forestry professionals, arborists, loggers, and demanding landowners who require superior cutting performance, durability, and efficiency. Combining a powerful 50.2cc engine producing 4.1 HP (3.0 kW) with STIHL’s advanced M-Tronic™ electronic engine management system, the MS 261 automatically adjusts fuel delivery and ignition timing to maintain optimal performance in varying temperatures, elevations, and working conditions.

Designed for high-volume cutting applications, this professional chainsaw offers exceptional maneuverability thanks to its lightweight construction and optimized power-to-weight ratio. Whether you’re felling trees, processing firewood, thinning forests, or handling demanding property maintenance tasks, the MS 261 delivers reliable power and precise cutting performance throughout the workday.

The advanced long-life air filtration system features pre-separation technology that removes larger debris before it reaches the air filter, significantly extending maintenance intervals and improving overall engine protection. This helps maximize productivity while reducing downtime.

Built with operator comfort in mind, the STIHL Anti-Vibration System minimizes fatigue during extended use by reducing vibration transfer to the handles. Additional professional features such as the decompression valve, side-access chain tensioner, tool-free fuel and oil caps, adjustable automatic oiler, and Quickstop® chain brake enhance both convenience and safety.

Combining professional-grade durability, intelligent engine technology, and outstanding cutting power, the STIHL MS 261 remains one of the most trusted chainsaws for forestry and heavy-duty cutting applications worldwide.

Key Features & Benefits

Powerful Professional Engine

• High-performance 50.2cc gasoline engine
• Produces 4.1 HP (3.0 kW) of cutting power
• Designed for forestry and professional applications
• Excellent power-to-weight ratio for increased productivity

STIHL M-Tronic™ Intelligent Engine Management

• Automatically adjusts engine settings in real time
• Optimizes fuel efficiency and performance
• Compensates for altitude, temperature, and fuel quality changes
• Consistent power output in varying conditions

Long-Life Air Filtration System

• Advanced pre-separation filtration technology
• Removes larger particles before reaching the air filter
• Extends maintenance intervals
• Improves engine longevity and reliability

Professional Cutting Performance

• Compatible with 16″, 18″, and 20″ guide bars
• .325″ chain pitch for fast, smooth cutting
• Excellent performance for felling, limbing, and bucking
• Ideal for large-volume wood processing

Lightweight & Ergonomic Design

• Optimized power-to-weight ratio
• Easy handling during extended operation
• Reduced operator fatigue
• Excellent balance and maneuverability

Advanced Anti-Vibration System

• Reduces vibration transmitted to the operator
• Enhances comfort during prolonged use
• Improves cutting precision and control

Easy Starting Technology

• Integrated decompression valve
• ElastoStart™ starter handle
• Reduced pulling effort during startup
• Faster and smoother engine starts

Enhanced Safety Features

• STIHL Quickstop® chain brake
• Side-access chain tensioner
• Tool-free fuel and oil caps
• Professional bumper spikes for improved cutting control

Technical Specifications

Why Choose the STIHL MS 261?

✔ Professional-grade forestry chainsaw
✔ Powerful 4.1 HP engine performance
✔ Advanced STIHL M-Tronic™ technology
✔ Excellent power-to-weight ratio
✔ Long-life air filtration system
✔ Reduced vibration for greater comfort
✔ Easy starting with decompression valve
✔ Ideal for logging, felling, limbing, and firewood processing
✔ Built for daily professional use
✔ Trusted STIHL durability and reliability