STIHL MS 500i Chainsaw 6.8 HP Electronic Fuel Injection Professional Forestry Saw

Lightweight Professional Chainsaw for Arborists and Tree Care Specialists

The STIHL MS 151 Gasoline Chainsaw is designed specifically for professional in-tree work, combining outstanding cutting performance with one of the lightest chassis designs in the STIHL range. Built for arborists, tree surgeons, and professional tree maintenance crews, this compact top-handle chainsaw offers exceptional balance, precision, and control when working at height.

Powered by a highly efficient 1.5HP STIHL 2-MIX engine, the MS 151 delivers impressive cutting power while reducing fuel consumption and exhaust emissions. Its lightweight construction minimizes operator fatigue, allowing professionals to work longer and more comfortably during demanding pruning, crown reduction, and maintenance tasks.

The specialized 1/4″ PM3 saw chain provides an exceptionally smooth and precise cut, making it ideal for delicate pruning work and precision cutting applications. Combined with STIHL’s renowned engineering and safety systems, the MS 151 offers reliable performance in professional tree care environments.

Whether you’re trimming branches, performing aerial pruning, or carrying out detailed arboricultural work, the STIHL MS 151 delivers the perfect balance of power, portability, and professional-grade performance.

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Key Features & Benefits

Lightweight Professional Design

• One of the lightest chainsaws in the STIHL professional range
• Designed specifically for arborists and climbing professionals
• Excellent maneuverability in confined working areas
• Reduces fatigue during extended use

Efficient STIHL 2-MIX Engine

• Powerful 1.5HP low-emission engine
• Improved fuel efficiency compared to previous generations
• Consistent cutting performance under demanding conditions
• Reduced operating costs and emissions

Precision Cutting Performance

• Premium 1/4″ PM3 saw chain
• Produces clean, accurate cuts
• Ideal for pruning and fine tree work
• Smooth cutting action with reduced vibration

Easy2Start Technology

• STIHL Easy2Start™ system for effortless starting
• Significantly reduces pull-force required
• Fast and reliable engine ignition
• Ideal for repeated daily operation

Advanced Anti-Vibration System

• Reduces vibration transmitted to the operator
• Enhances comfort during prolonged use
• Minimizes hand and arm fatigue
• Improves overall control and precision

Professional Arborist Features

• Integrated carry ring for climbing operations
• Top-handle configuration for superior control
• Side-access chain tensioner for quick adjustments
• Adjustable automatic chain lubrication system

Enhanced Safety Systems

• STIHL Quickstop® chain brake
• Throttle trigger lockout
• Improved operator protection
• Enhanced cutting control and stability

Durable Professional Construction

• Impact-resistant lightweight housing
• Corrosion-resistant materials
• Built for demanding commercial use
• Long-lasting reliability in harsh environments

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Technical Specifications

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Why Choose the STIHL MS 151 Chainsaw?

✔ Ultra-lightweight professional arborist chainsaw

✔ Powerful and fuel-efficient STIHL 2-MIX engine

✔ Precision 1/4″ PM3 chain for clean, accurate cuts

✔ Easy2Start™ system for effortless starting

✔ Professional top-handle design for aerial tree work

✔ Advanced anti-vibration technology for all-day comfort

✔ Adjustable automatic chain lubrication

✔ STIHL Quickstop® chain brake for enhanced safety

✔ Built for demanding commercial tree care applications

✔ Exceptional balance, maneuverability, and cutting control