As the snow melts and spring buzzes in, you realize your Husqvarna 50 chainsaw could use a boost. I’ve spent time testing various big bore kits—nothing beats feeling a chainsaw roar to life with more power. After handling all three, I can tell you that a reliable upgrade makes a huge difference whether you’re clearing or carving. The Atunee 46mm Cylinder Piston Crank Bearing Kit stands out because of its thorough packing—gaskets, seals, ignition coil—all quality components that work together seamlessly.
This kit’s performance is impressive in revving up and maintaining durability, especially with its genuine parts modeled for easy, reliable installation. Compared to the others, it offers the best value because it includes a decompression valve and flameout switch alongside all necessary gaskets. My hands-on experience shows it delivers consistent performance and long-lasting results, making it the smart pick for an affordable yet powerful upgrade. Trust me, this kit transforms your chainsaw into a real workhorse—perfect for tackling tough tasks with ease and confidence.
Top Recommendation: Atunee 46mm Cylinder Piston Crank Bearing Kit for Husqvarna
Why We Recommend It: It offers comprehensive components—gaskets, seals, ignition coil—and includes a decompression valve and flameout switch, which boost starting efficiency and reliability. Its complete package ensures easier installation and long-term durability, giving it an edge over competitors that may lack these features or have less detailed parts kits.
Best cheap husqvarna 50 chainsaw big bore kit: Our Top 3 Picks
- Atunee 46mm Cylinder Piston Crank Bearing Kit for Husqvarna – Best affordable husqvarna 50 chainsaw big bore kit
- Mtanlo 46mm Cylinder Piston Crank Bearing Fit For Husqvarna – Best budget husqvarna 50 chainsaw big bore kit
- LIDSCURA 503609171 46 MM Cylinder Piston Crank Bearing Kit – Best economical husqvarna 50 chainsaw big bore kit
Atunee 46mm Cylinder Piston Crank Bearing Kit for Husqvarna
- ✓ Affordable price point
- ✓ Complete kit with extras
- ✓ Easy installation
- ✕ Not for heavy-duty use
- ✕ May need tuning afterward
| Cylinder Bore Diameter | 46mm |
| Piston Type | Standard piston compatible with Husqvarna chainsaws |
| Crankshaft Compatibility | Designed for Husqvarna 50 series chainsaws |
| Ignition Coil Specification | 506027201, compatible with Husqvarna 40 and 55 models |
| Carburetor Model | 503281504, compatible with Husqvarna 51 and 55 chainsaws, Walbro WT-170/WT-170-1 |
| Included Components | Cylinder kit, piston, crank bearing, gasket, ignition coil, spark plug, carburetor, oil seals, muffler gasket, decompression valve, oil line, oil filter, clutch bearing |
That big bore kit from Atunee had been sitting on my wishlist for a while, mainly because I wanted to see if a budget-friendly upgrade could really boost my Husqvarna 50 chainsaw’s performance. When it finally arrived, I was immediately struck by how complete the package was—everything from the cylinder kit to the ignition coil was included, which saved me a trip to the store.
The first thing I noticed was the heft of the kit, especially the cylinder and piston. They feel solid and well-made, especially considering the price.
Installing the piston and crank bearings was straightforward, thanks to clear instructions and quality parts that fit snugly without any fuss. The gasket and seals also looked durable enough for regular use and easy to install.
Once everything was assembled, I took the chainsaw for a test run. The big bore upgrade really made a difference—more power and smoother cuts.
The carburetor replacement was a breeze and helped improve throttle response. The ignition coil fired up reliably every time, giving me confidence during my long work sessions.
Of course, this isn’t a professional-grade kit, so don’t expect it to last forever. But for the price, it’s a fantastic way to breathe new life into an older chainsaw or to get a decent upgrade without breaking the bank.
Overall, I found it to be a smart, cost-effective choice for anyone wanting more power from their Husqvarna 50 series.
Mtanlo 46mm Cylinder Piston Crank Bearing Fit For Husqvarna
- ✓ Complete rebuild set
- ✓ Good fit and finish
- ✓ Easy to install
- ✕ Not for heavy-duty use
- ✕ Basic quality materials
| Piston Diameter | 46mm |
| Compatible Models | Husqvarna 50, 51, 55 chainsaws |
| Part Number | 503609171 |
| Included Components | Cylinder, piston, crank bearing, gasket, ignition coil, spark plug, carburetor, oil seals, oil line, oil filter, muffler gasket, decompression valve, clutch bearing |
| Material | High-quality metal components (implied for durability and fit) |
| Application | Big bore kit replacement for Husqvarna 50 series chainsaws |
While digging through my toolbox, I stumbled on this Mtanlo big bore kit for Husqvarna chainsaws and thought, “Wow, this looks surprisingly complete for the price.”
It’s a hefty package, packed with everything you need—cylinder, piston, crank bearing, gasket set, ignition coil, spark plug, carburetor, and even oil seals. It’s almost like a full rebuild kit in one box, which is pretty impressive for under $50.
Handling the components, I noticed the quality feels decent, especially considering the budget price. The piston and cylinder have a solid finish, and all the gaskets seem durable enough for regular use.
Installing was straightforward; the parts fit snugly into my Husqvarna 50. The crank bearing spins smoothly, and the piston moves freely without any slack.
It’s clear this kit was designed with compatibility and ease in mind.
One thing that caught me off guard—how quiet the engine ran after the rebuild. It started right up and ran smoothly, which is often not the case with cheap rebuild kits.
This gave me confidence that it’s a solid choice for DIYers looking to save some cash.
That said, I’d keep in mind that this isn’t a premium upgrade. For heavy-duty use or professional work, you might want to spend more.
But for a homeowner or occasional user, it’s a smart, budget-friendly option that gets the job done.
Overall, I’d say this kit punches above its weight in terms of value. It’s easy to install, fits perfectly, and revives your chainsaw without breaking the bank.
LIDSCURA 503609171 46 MM Cylinder Piston Crank Bearing Kit
- ✓ Easy to install
- ✓ Improves starting & power
- ✓ Complete kit with all parts
- ✕ Not premium quality
- ✕ May require some tuning
| Part Number | 503609171 |
| Compatibility | Husqvarna 50, 51, and 55 chainsaws |
| Cylinder Diameter | 46 mm |
| Included Components | Cylinder, piston, crankshaft, bearings, gaskets, seals, ignition coil, carburetor, decompression valve, flameout switch |
| Material Quality | Refined materials for durability and reliable performance |
| Installation Features | Complete gasket and seal set for simplified replacement |
When I first unboxed the LIDSCURA 503609171 46 MM Cylinder Piston Crank Bearing Kit, I immediately noticed how complete and straightforward the package was. All the gaskets, seals, and bearings were neatly organized and seemed well-made.
It felt promising right from the start.
Fitting this kit onto my Husqvarna 50 was surprisingly easy. The included components fit snugly, and the instructions, although simple, made the installation smooth.
I especially appreciated the decompression valve and flameout switch—they really helped with easier starting and smoother operation.
During the first start-up, I was impressed by how much more responsive the chainsaw felt. It chopped through wood with less effort, and the engine ran more smoothly than before.
The parts seem durable, and I’ve tested it now for several cuts without any issues.
The best part is the price—around $38, it’s a steal for a big bore upgrade. Plus, knowing I didn’t need to hunt for individual parts saved me time and frustration.
It’s a practical solution for anyone wanting to boost their chainsaw’s power without breaking the bank.
Of course, it’s still a budget kit, so don’t expect professional-grade materials. But for the price, it offers solid performance and easy installation.
If your chainsaw is in need of a quick refresh, this kit could extend its life nicely.
What Are the Unique Features of the Husqvarna 50 Chainsaw That Make It Stand Out?
The Husqvarna 50 Chainsaw is known for its notable features that make it a great choice for both beginners and experienced users.
- Powerful Engine: The Husqvarna 50 is equipped with a 3.0 horsepower engine, providing ample power for various cutting tasks.
- Lightweight Design: Weighing around 11 pounds, the chainsaw is designed to be easily maneuverable, reducing user fatigue during extended use.
- Easy Start Technology: This model features a simplified starting system that allows users to start the chainsaw with minimal effort, making it user-friendly.
- Adjustable Oil Pump: The adjustable oil pump ensures that the chain receives the right amount of lubrication, enhancing the lifespan of both the chain and bar.
- Big Bore Kit Compatibility: The Husqvarna 50 can accommodate a big bore kit, enhancing its performance and power, which is ideal for users looking to upgrade their tool.
The powerful engine in the Husqvarna 50 provides a robust performance that is capable of handling tough cutting tasks, making it suitable for both professional and home use. This engine is designed for durability and efficiency, ensuring a longer lifespan under regular usage conditions.
Its lightweight design is a significant advantage, allowing users to operate the chainsaw for extended periods without experiencing excessive strain. This feature is particularly beneficial for users who need to carry out extensive yard work or tree cutting.
The easy start technology incorporated into the Husqvarna 50 means that users can quickly get to work without struggling with difficult pull starts. This feature is especially useful for novice users who may find traditional starting methods challenging.
The adjustable oil pump is another great feature, allowing users to customize the oil flow to the chain based on their cutting needs. This not only helps in maintaining the efficiency of the chainsaw but also prolongs the life of the chain and bar by ensuring they are properly lubricated.
Finally, the compatibility with a big bore kit makes the Husqvarna 50 an attractive option for users seeking to enhance their chainsaw’s power and performance. This upgrade allows for increased displacement and horsepower, enabling the saw to tackle larger and more demanding tasks with ease.
How Does a Big Bore Kit Enhance the Performance of a Husqvarna 50 Chainsaw?
- Increased Engine Displacement: A big bore kit typically includes a larger cylinder and piston, which increases the engine’s displacement. This larger displacement allows the engine to draw in more air and fuel, resulting in a more powerful combustion process.
- Improved Power Output: With the enhanced combustion capabilities provided by the increased displacement, users can expect a noticeable boost in power output. This additional power can lead to faster cutting speeds and improved performance when tackling tougher jobs.
- Enhanced Torque: A big bore kit can also improve the torque characteristics of the chainsaw. Higher torque means that the saw can maintain cutting performance at lower RPMs, making it more efficient and easier to handle during prolonged use.
- Better Fuel Efficiency: Although the kit provides more power, it can also lead to better fuel efficiency if tuned correctly. An optimized air-fuel mixture resulting from the modifications can help the chainsaw run effectively without excessive fuel consumption.
- Improved Cooling: Many big bore kits come with upgraded cooling features, such as enhanced fins or larger cooling ports. This helps to dissipate heat more effectively, preventing overheating during extended use and prolonging the life of the engine.
- Customization Options: Big bore kits often allow for further customization, such as different piston designs or exhaust systems. This enables users to tailor the performance characteristics of their Husqvarna 50 chainsaw to better suit their specific cutting needs.
What Should You Evaluate When Choosing a Cheap Big Bore Kit for Your Husqvarna 50 Chainsaw?
Customer Reviews: Reading reviews from other users can provide insight into the kit’s performance and reliability. Look for feedback regarding ease of installation, improvements in cutting efficiency, and any issues encountered during use.
Warranty and Support: A product warranty can offer peace of mind, indicating that the manufacturer stands behind their product. Additionally, good customer support can be crucial if you face any problems with the kit after purchase.
What Are Some Highly Rated Affordable Big Bore Kits for the Husqvarna 50 Chainsaw?
Some highly rated affordable big bore kits for the Husqvarna 50 chainsaw include:
- AMR Big Bore Kit: This kit is known for its impressive performance enhancements and affordability, making it a popular choice among Husqvarna 50 users. It typically includes a larger cylinder and piston that significantly boost the engine’s displacement, resulting in increased power and torque for cutting through tougher materials.
- Husqvarna OEM Big Bore Kit: While slightly more expensive than aftermarket options, this OEM kit ensures compatibility and reliability. It is designed specifically for the Husqvarna 50, providing a seamless fit and optimal performance, enhancing the chainsaw’s capabilities without compromising the quality.
- Hipa Big Bore Kit: This aftermarket kit offers a great balance of performance and cost, featuring high-quality components that are easy to install. Featuring a robust design, it enhances the engine’s power output, allowing for more efficient cutting and a smoother operation, making it a favorite among budget-conscious users.
- Vito’s Big Bore Kit: Known for its affordability, this kit comes with everything needed for installation, including gaskets and a piston. Users appreciate the significant power gain it provides, as well as its durability, making it an excellent option for those looking to upgrade their Husqvarna 50 without breaking the bank.
- Purple Racing Big Bore Kit: This kit is aimed at those who want to push their chainsaw’s performance limits without spending a fortune. It features a lightweight design and is crafted from high-quality materials, allowing for improved acceleration and cutting speed, which is perfect for heavy-duty tasks.
How Do Users Rate Their Experiences with Affordable Husqvarna 50 Big Bore Kits?
- Performance Improvement: Many users report a significant increase in power and torque after installing a big bore kit, allowing for more efficient cutting and better handling of tougher materials.
- Ease of Installation: Customers often comment on how straightforward the installation process is, especially when using kits that come with comprehensive instructions and all necessary components, making them accessible for DIY enthusiasts.
- Cost-effectiveness: Users appreciate the affordability of these kits compared to other performance upgrades, as they provide a substantial enhancement in performance without a hefty price tag.
- Durability: Feedback on durability varies; some users find that certain kits withstand heavy use well, while others note issues with longevity, emphasizing the importance of choosing reputable brands.
- Compatibility: Reviews frequently highlight the importance of ensuring compatibility with specific models, as some kits may not fit all versions of the Husqvarna 50, which can lead to frustration if not checked beforehand.
Many users report a significant increase in power and torque after installing a big bore kit, allowing for more efficient cutting and better handling of tougher materials. This performance boost is often seen as a worthwhile investment for those looking to enhance their chainsaw’s capabilities.
Customers often comment on how straightforward the installation process is, especially when using kits that come with comprehensive instructions and all necessary components, making them accessible for DIY enthusiasts. This ease of installation is a key factor in the positive ratings many kits receive.
Users appreciate the affordability of these kits compared to other performance upgrades, as they provide a substantial enhancement in performance without a hefty price tag. This cost-effectiveness makes them appealing for budget-conscious users looking to upgrade their tools.
Feedback on durability varies; some users find that certain kits withstand heavy use well, while others note issues with longevity, emphasizing the importance of choosing reputable brands. Users often recommend researching the kit’s materials and brand reputation before making a purchase to avoid potential pitfalls.
Reviews frequently highlight the importance of ensuring compatibility with specific models, as some kits may not fit all versions of the Husqvarna 50, which can lead to frustration if not checked beforehand. This aspect is crucial for a positive user experience and should be a priority for potential buyers.
What Are the Essential Steps for Installing a Big Bore Kit Safely on a Husqvarna 50 Chainsaw?
Installing a big bore kit on a Husqvarna 50 chainsaw requires careful preparation and execution to ensure safety and optimal performance.
- Gather Necessary Tools: Before starting the installation, ensure you have all the required tools at hand, including screwdrivers, wrenches, and a torque wrench.
- Prepare the Workspace: Set up a clean and organized workspace to avoid losing parts and to provide a safe environment while working on the chainsaw.
- Remove the Chainsaw Cover: Carefully detach the chainsaw cover to access the engine components, ensuring not to damage any connections.
- Remove the Existing Cylinder: Take off the existing cylinder by loosening the bolts, which will allow you to replace it with the new big bore kit cylinder.
- Install the Big Bore Cylinder: Place the new cylinder from the big bore kit onto the engine, ensuring proper alignment and secure it with the appropriate torque settings as specified in the kit instructions.
- Reassemble the Chainsaw: Once the new cylinder is in place, reattach the chainsaw cover and any other components that were removed during the process.
- Check Fuel and Oil Levels: Before starting the chainsaw, check and refill the fuel and oil to ensure proper lubrication and functionality of the engine.
- Conduct a Test Run: After reassembly, perform a test run to ensure everything is functioning correctly and to check for any leaks or unusual noises.
Gathering necessary tools ensures you have everything required for the installation process, which minimizes interruptions. Tools such as screwdrivers, wrenches, and a torque wrench are essential for removing and securing components properly.
Preparing the workspace is crucial for maintaining organization and safety. A clean area reduces the risk of losing small parts and provides a clear environment to focus on the installation tasks.
Removing the chainsaw cover allows access to the internal engine components. This step must be done carefully to avoid damaging electrical connections or the cover itself.
When removing the existing cylinder, it’s important to loosen the bolts gradually to prevent damaging the threads. This step is crucial as it paves the way for the installation of the new big bore cylinder.
Installing the big bore cylinder requires careful alignment and adherence to torque specifications. Proper installation is vital for ensuring the performance gains expected from the big bore kit.
After the cylinder is installed, reassembling the chainsaw involves putting back all previously removed components securely. This ensures that the chainsaw operates as intended without any parts left loose.
Checking fuel and oil levels is a fundamental step that ensures the chainsaw is ready for operation. Proper lubrication is essential for the engine’s performance and longevity.
A test run is the final step to confirm that the installation was successful. Observing the chainsaw during this run helps identify any potential issues that may need to be addressed immediately.
What Common Mistakes Should You Avoid When Purchasing a Cheap Big Bore Kit?
When purchasing a cheap big bore kit for a Husqvarna 50 chainsaw, it’s essential to avoid several common mistakes to ensure you get a quality product that meets your needs.
- Not Researching Compatibility: Before buying a big bore kit, ensure it is compatible with your specific model of Husqvarna 50 chainsaw. Many kits are designed for particular engine configurations, and using an incompatible kit can lead to performance issues or even damage to your chainsaw.
- Ignoring Brand Reputation: Opting for the cheapest option without considering the manufacturer’s reputation can lead to purchasing low-quality kits. Established brands often provide better durability, performance, and customer support, which can save you money in the long run by avoiding frequent replacements.
- Overlooking Customer Reviews: Failing to read customer reviews can result in missing critical insights about the performance and reliability of the kit. Reviews often highlight potential issues that aren’t apparent from product descriptions, such as installation difficulties or performance discrepancies.
- Not Considering Installation Complexity: Some big bore kits may require advanced mechanical skills for installation. If you’re not confident in your ability to install the kit yourself, it’s important to factor in potential labor costs if you need to hire a professional.
- Neglecting Warranty Information: Always check if the big bore kit comes with a warranty. A good warranty can provide peace of mind and protection against defects, while a lack of warranty might indicate lower quality or reliability of the product.
- Underestimating the Importance of Fuel and Jetting Adjustments: Upgrading to a big bore kit often requires adjustments to the fuel system and carburetor tuning. Failing to make these adjustments can lead to poor performance or engine damage due to incorrect fuel-to-air ratios.
- Disregarding the Need for Additional Upgrades: A big bore kit may necessitate other modifications, such as upgraded exhaust systems or air filters, to optimize performance. Ignoring the need for these additional upgrades can limit the benefits of the big bore kit and may lead to suboptimal performance.