Husqvarna 545 Mark II Chainsaw Review


The Husqvarna 545 Mark II is a robust and versatile chainsaw designed for those who require both efficiency and reliability for medium-intensity cutting tasks. With a host of innovative features, this model stands out as a formidable tool in Husqvarna’s lineup, targeting professional forestry workers and ardent tree care experts.

Specifications of Husqvarna 545 Mark II

  • Engine Displacement: 3.06 cubic inches (50 cc)
  • Power Output: 3.6 horsepower
  • Maximum Power Speed: 9,900 rpm
  • Chain Speed at Max Power: 62.7 feet per second
  • Recommended Bar Length: 13 inches to 20 inches
  • Weight (excluding cutting equipment): 11.7 pounds
  • Sound Pressure Level at Operator’s Ear: 106 dB(A)
  • Vibration Level (ahv, eq) Rear Handle: 4.6 m/s²

Husqvarna 545 Mark II Advanced Features for Enhanced Usability

The 545 Mark II doesn’t just excel in power but also in user-centric innovations:

  • AutoTune: Automatically adjusts the engine settings based on environmental conditions, optimizing performance without manual carburetor adjustments.
  • X-TORQ Engine: Reduces fuel consumption and emission levels, making the saw more environmentally friendly and cost-effective to operate.
  • Air Injection™ Technology: Minimizes debris intake, enhancing the engine’s lifespan and reducing maintenance needs.
  • LowVib Technology: Significantly decreases vibration levels, enhancing comfort and reducing user fatigue during extended use.
  • Easy Start and Handling: Features like the Smart Start system and a side-mounted chain tensioner simplify starting and maintenance, while the slim design enhances maneuverability.

Performance and Power

Person cutting log using Husqvarna 545 Mark II Chainsaw in the snow area

Equipped with a 3.06 cubic inch engine, the Husqvarna 545 Mark II delivers a substantial power output of 3.6 horsepower. This allows for a chain speed of 62.7 feet per second at maximum power, ensuring rapid and clean cuts. The chainsaw’s torque peaks at 2.95 Nm, providing enough force to tackle tough, medium-sized trees efficiently. The optimal performance is sustained with a maximum power speed of 9,900 rpm, and the clutch engagement speed is finely tuned to 3,900 rpm, making it both responsive and powerful.

Design and Durability

Husqvarna 545 Mark II Chainsaw laying on the logs

Durability is key with the Husqvarna 545 Mark II, thanks to its magnesium crankcase and three-piece crankshaft that can withstand high RPMs and harsh conditions over extended periods. The chainsaw also features a snap-lock cylinder cover for quick access during maintenance, and a flip-up fuel cap simplifies refueling.

Cutting Capacity and Bar Options

Person cutting log using Husqvarna 545 Mark II Chainsaw in a snow area

This chainsaw comes with a recommended bar length of 13 to 20 inches, suitable for a variety of cutting tasks from felling to limbing. The pitch of .325″ and a gauge of .050″ make it a versatile choice for different types of wood cutting.

Safety and Maintenance

Husqvarna 545 Mark II Chainsaw sitting on the cut log.

With safety as a priority, the Husqvarna 545 Mark II is equipped with an inertia-activated chain brake to prevent kickback injuries. Maintenance is straightforward with features like the quick-release air filter and retained bar nuts, which streamline routine checks and adjustments.

Real-World Performance

A person making a notch cut in a tree using a Husqvarna 545 Mark II Chainsaw.

Field tests reveal that the Husqvarna 545 Mark II performs exceptionally well even after prolonged use. Although it’s not intended for the largest timber, it efficiently handles logs up to nine inches, maintaining speed and reliability even with a chain that has seen considerable use. It cuts through wood quickly and efficiently, proving its capability in real-world conditions typical of professional use.

Comparative Summary of Husqvarna 545 Mark II vs. Stihl MS 261

Power SourceGasGas
Powerhead Weight11.7 lbs10.8 lbs
Guide Bar Length (Recommended)20 in.16 in.
Chain.325″ SP33G.325″ RM3
Chain Oil CapacityNot Specified9.13 oz.
Engine Power3.6 hp4.0 bhp
Fuel Capacity17.9 oz. (approx)16.9 oz.
Displacement50.1 cc50.2 cc

Summary: Both the Husqvarna 545 Mark II and Stihl MS 261 chainsaws offer robust features suitable for professional use, but they cater to slightly different needs due to their design nuances. The Husqvarna 545 Mark II, with its 20-inch bar and 11.7 lbs weight, is slightly heavier and more suitable for cutting larger wood, thanks to its greater fuel capacity and longer bar length, which enhance its efficiency for heavy-duty tasks.

On the other hand, the Stihl MS 261, weighing 10.8 lbs with a 16-inch bar, excels in agility and ease of handling, making it ideal for tasks requiring greater maneuverability such as limbing and pruning. Both chainsaws incorporate advanced technology to reduce fatigue and maintain engine life, with Husqvarna featuring LowVib and Air Injection™ technologies, and Stihl showcasing an adjustable oil pump and quick-release air filter for maintenance ease. Ultimately, the choice between these two models will depend on the specific cutting tasks at hand, with the Husqvarna favoring larger projects and the Stihl optimized for lighter, more frequent use.

Maintenance and Durability Insights

For the Husqvarna 545 Mark II chainsaw, understanding and managing long-term maintenance is crucial to ensuring its durability and maximizing its lifespan. This section outlines the maintenance requirements and common issues that users may encounter over time.

Long-Term Maintenance Requirements

The Husqvarna 545 Mark II is built with durability in mind, but like all high-performance tools, it requires regular maintenance to keep it running smoothly:

  1. Air Filter Maintenance: Regular cleaning and replacement of the air filter are vital, especially in dusty conditions. The quick-release air filter and cover facilitate easy access and maintenance.
  2. Chain and Bar Care: Regularly check the chain tension and sharpen the chain to ensure efficient cutting. The side-mounted chain tensioner makes adjustments straightforward and quick.
  3. Oil System Maintenance: The adjustable oil pump allows users to control oil flow based on the needs of the chainsaw, reducing waste and ensuring proper lubrication. Regular checks will ensure the pump delivers optimal performance and prevents clogging.
  4. Regular Cleaning: Keeping the chainsaw clean from debris, particularly around the magnesium crankcase and the cooling fins, is essential for optimal performance and overheating prevention.
  5. Spark Plug Maintenance: Regular inspection and replacement of the spark plug ensure efficient starts and engine running.

Common Issues and Their Solutions

Users of the Husqvarna 545 Mark II might encounter several common issues that can impact its performance:

  • Chain Wear and Tear: Over time, the chain may become dull or damaged, affecting the chainsaw’s cutting efficiency. Regular sharpening or replacement is necessary.
  • Starter Problems: Due to frequent use, the recoil starter may wear out. Ensuring that starter screws are retained and checking them for looseness can prevent issues.
  • Carburetor Adjustments: The AutoTune feature automatically adjusts the carburetor settings to match environmental conditions, but manual checks and adjustments might be needed periodically, especially if operating conditions change significantly.
  • Vibration Dampening System Wear: Although the LowVib® system reduces fatigue and increases comfort, its components can wear out over time and may need replacing to maintain effectiveness.

Expected Lifespan

With regular maintenance, the Husqvarna 545 Mark II can last for many years. The saw is designed with a three-piece crankshaft and a magnesium crankcase that provide the durability needed for professional use. The actual lifespan can vary depending on the frequency of use and the harshness of the conditions in which it is used. However, with adherence to maintenance guidelines and proper care, users can significantly extend the life of their chainsaw, maintaining performance for both occasional and professional tasks.


The Husqvarna 545 Mark II chainsaw, priced at $639.99, offers great value for its features and performance. It’s ideally suited for semi-professional users who need a powerful yet manageable chainsaw for regular use. Weighing just 11.7 lbs and faster than many competitors, it stands as a preferred choice for anyone looking for a midsize chainsaw that doesn’t compromise on power or features.

If you’re considering an upgrade or need a reliable saw that balances between amateur and professional requirements, the Husqvarna 545 Mark II is definitely worth considering. It promises durability, efficiency, and comfort, making it a smart investment for your forestry tasks. Whether you’re a seasoned operator or stepping into more serious landscaping or wood management roles, this chainsaw will not disappoint.


  1. What makes the Husqvarna 545 Mark II different from other chainsaws?
    The 545 Mark II features a powerful X-TORQ engine that not only delivers superior power but also reduces fuel consumption and emissions. It’s designed for professional forestry and tree care, offering enhanced ergonomics and efficient cooling for extended engine life.
  2. Can the Husqvarna 545 Mark II handle large trees?
    Yes, despite its compact size, the 545 Mark II is equipped to handle midsize to large trees, thanks to its robust power output and efficient chain speed.
  3. Is the Husqvarna 545 Mark II suitable for professional use?
    Absolutely. This chainsaw is built with professional users in mind, featuring a durable magnesium crankcase and numerous enhancements like Air Injection™ and LowVib technologies to withstand rigorous and prolonged use.
  4. What bar lengths are compatible with the 545 Mark II?
    The 545 Mark II can accommodate bar lengths from 13 inches up to 20 inches, making it versatile for various cutting tasks.
  5. How does the AutoTune feature benefit the Husqvarna 545 Mark II?
    AutoTune automatically adjusts the engine settings to ensure optimal performance, taking into account factors like fuel quality, humidity, temperature, and air filter cleanliness.
  6. What safety features does the Husqvarna 545 Mark II have?
    It includes an inertia-activated chain brake to prevent kickback injuries and LowVib technology to reduce vibration levels, enhancing safety and comfort during operation.
  7. How does the Adjustable Oil Pump feature work?
    The Adjustable Oil Pump allows the user to control oil flow depending on the weather conditions and the cutting task, which helps in managing lubrication efficiently and extending the chain’s life.
  8. What are the environmental benefits of the X-Torq engine in the 545 Mark II?
    The X-Torq engine design reduces harmful exhaust emissions by up to 75% and increases fuel efficiency by up to 20%, making it more environmentally friendly than traditional chainsaw engines.
  9. Can I quickly change the air filter on the 545 Mark II?
    Yes, the 545 Mark II comes with a Quick-Release Air Filter and Snap-Lock cylinder cover that make maintenance tasks like changing the air filter quick and tool-free.
  10. What is the significance of the ‘Felling sight to last a lifetime’ feature?
    This feature helps in achieving precision in cutting directions, which is crucial for felling accuracy and safety. It is designed to be durable to last as long as the chainsaw itself.

For those who have used the Husqvarna 545 Mark II, we’d love to hear your thoughts and experiences. How has it performed in your specific conditions? Share your insights in the comments below to help others make informed decisions about their chainsaw needs.

David Murray
David Murray
Forestry Author

I'm David Murry, a forestry equipment specialist with a focus on chainsaw operation. With over 13 years of experience, I've honed my skills in operating and maintaining a wide range of machinery, from chainsaws to log splitters. My passion for the outdoors and commitment to sustainable forestry drive my work, which emphasizes safety, efficiency, and staying updated with industry advancements. Additionally, I'm dedicated to sharing my expertise and promoting environmental awareness within the forestry community.


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