When it comes to professional-grade chainsaws, the Husqvarna 592 XP and the Stihl MS 660 are two of the most trusted and talked-about machines among loggers, arborists, and serious landowners. These beasts are built for heavy-duty work—felling massive trees, cutting large hardwood logs, and enduring long hours in rugged conditions. In this article, we’ll dive deep into the specs, features, advantages, and drawbacks of each chainsaw to help you decide which one is the better investment for your needs.
Overview of the Competitors
Husqvarna 592 XP:
Released as a flagship model in Husqvarna’s professional line, the 592 XP is designed for maximum power, precision, and productivity. With advanced technology and ergonomics, it caters to demanding professionals looking for efficiency and reliability in harsh environments.
Stihl MS 660:
While not the latest in the Stihl lineup (it has been succeeded by the MS 661 C-M), the MS 660 remains a legendary saw in the eyes of many. Known for its raw power and rugged construction, it’s a tried-and-true workhorse in forestry and tree service industries.
Engine Power and Performance
Husqvarna 592 XP:
- Engine Displacement: 92.7 cc
- Power Output: 7.6 hp (5.7 kW)
- Maximum Recommended Bar Length: Up to 36 inches
- Weight (without bar/chain): 16.3 lbs (7.4 kg)
The 592 XP boasts Husqvarna’s X-Torq® engine technology, which enhances fuel efficiency and reduces emissions without compromising performance. It offers exceptional torque and cutting speed, making it ideal for both hardwood and softwood applications. This chainsaw is particularly well-suited for long bars and intense cutting jobs.
Stihl MS 660:
- Engine Displacement: 91.6 cc
- Power Output: 7.0 hp (5.2 kW)
- Maximum Recommended Bar Length: Up to 36 inches
- Weight (without bar/chain): 16.3 lbs (7.4 kg)
The MS 660 has a slightly smaller engine compared to the 592 XP, but its performance is still formidable. Known for delivering consistent cutting force, the MS 660 is favored by many for its reliability and straightforward power delivery. It’s a no-nonsense tool that gets the job done in tough conditions.
Technology and Features
Husqvarna 592 XP:
- AutoTune 3.0: Automatically adjusts engine performance for optimal operation.
- Air Injection System: Keeps the air filter cleaner for longer.
- LowVib®: Reduces vibrations, improving comfort and reducing fatigue.
- Connectivity: Ready for Husqvarna Fleet Services™ via Bluetooth.
- Heavy-duty air filter: Excellent filtration system for longer run time and protection.
The 592 XP is designed with modern forestry needs in mind. From digital tuning to ergonomic refinements, it’s a future-forward machine with the brawn of traditional saws and the brain of a modern tool.
Stihl MS 660:
- Decompression Valve: Easier starting by reducing compression pressure.
- ElastoStart™ Handle: Reduces shock during the startup process.
- Anti-vibration system: Increases operator comfort.
- Compensator carburetor: Maintains engine performance even as the air filter gets dirty.
The MS 660 lacks the high-tech features of newer models but compensates with its battle-tested simplicity. Its traditional carburetor system and mechanical durability make it an ideal choice for remote or tough environments where minimal maintenance is key.
Handling and Ergonomics
Both chainsaws weigh around the same and are built to handle large guide bars. However, there are differences in how they feel in hand.
Husqvarna 592 XP:
Users report that the 592 XP feels more balanced with longer bars and is slightly more comfortable during extended use. The grip design, reduced vibrations, and responsive throttle make it easier to control in detailed felling and bucking.
Stihl MS 660:
While still comfortable to handle, the MS 660 feels more “raw” and aggressive. It has more vibration and a stiffer throttle, which some professionals actually prefer for the direct mechanical feel. It’s a matter of preference, but for extended daily use, the 592 XP has an edge in user comfort.
Maintenance and Durability
Husqvarna 592 XP:
With its AutoTune and advanced filtration system, the 592 XP requires less manual tuning and less frequent filter maintenance. Parts are designed for easy access and tool-less service when needed. Its magnesium crankcase and forged crankshaft make it highly durable under extreme workloads.
Stihl MS 660:
Built to last with a similar magnesium housing and rugged internals, the MS 660 thrives in challenging environments. While it lacks automatic tuning, experienced users appreciate the ease of manual carburetor adjustments. This makes the saw more field-serviceable in remote conditions where tech tools are unavailable.
Fuel Efficiency and Emissions
Husqvarna 592 XP:
Thanks to X-Torq technology and AutoTune 3.0, the 592 XP offers improved fuel efficiency and lower emissions compared to traditional two-strokes. This not only benefits the environment but also reduces refueling downtime.
Stihl MS 660:
The MS 660 predates modern emission standards and is known to be less fuel-efficient. It consumes more fuel and emits more exhaust, which may be a concern in some regions or for those looking for cleaner operation.
Price and Availability
Husqvarna 592 XP:
This is a premium saw, and the price reflects that. Depending on the region and dealer, it can range from $1,300 to $1,500 or more. Given its newness, parts and support are widely available through authorized Husqvarna dealers.
Stihl MS 660:
The MS 660 is no longer in production, making it harder to find new. However, it’s still available through secondhand markets and some specialty sellers. Its successor, the MS 661 C-M, is the modern equivalent and comes in at a similar price range.
Pros and Cons
Husqvarna 592 XP:
✅ Advanced technology (AutoTune, X-Torq)
✅ Lower fuel consumption and emissions
✅ Better ergonomics and balance
✅ Ready for digital fleet tracking
❌ Expensive
❌ May be overkill for casual users
Stihl MS 660:
✅ Legendary reliability and raw power
✅ Easy to service manually
✅ Widely respected in professional circles
✅ Still competitive for most logging tasks
❌ Higher emissions and fuel use
❌ No longer manufactured
❌ Lacks modern features
Conclusion: Which One Should You Choose?
Choosing between the Husqvarna 592 XP and the Stihl MS 660 depends largely on your working conditions, personal preferences, and budget.
- If you value cutting-edge technology, fuel efficiency, and modern ergonomics, the Husqvarna 592 XP is the clear winner. It’s ideal for professionals who spend hours in the field and want the best that modern engineering has to offer.
- On the other hand, if you prefer a simple, mechanically reliable, and time-tested machine with raw cutting power, the Stihl MS 660 (or its newer cousin the MS 661 C-M) might suit you better—especially if you’re already familiar with Stihl’s ecosystem.
Both saws are top-tier tools capable of handling the toughest jobs. Whether you go with Husqvarna’s latest marvel or Stihl’s enduring legend, you’re getting a chainsaw that delivers serious performance when it matters most.
