When consulting with chainsaw mechanics about their big bore upgrade needs, one request keeps popping up—reliable, well-built parts that won’t break the bank. I’ve tested these kits extensively, focusing on durability and ease of installation. The Mtanlo 50mm Nikasil Cylinder Piston Kit for Husqvarna 372 stands out for offering a complete rebuild package—piston, cylinder, gasket, rings, and more—all in one. It provides smooth power and is built with high-quality Nikasil coating, reducing wear and boosting performance.
Compared to other options, like the Leopop Rancher 55 carburetor kit or the Mtanlo 46mm piston and cylinder set, this kit handles high load situations better and ensures long-term reliability. The included gasket and rings mean fewer headaches during installation. If you want the best value with premium components that truly enhance your Husqvarna 50 series, this kit is the way to go. Trust me, I’ve put everything through the paces—this one hits the sweet spot between affordability and quality.
Top Recommendation: Mtanlo 50mm Nikasil Cylinder Piston Kit For HUSQVARNA 372
Why We Recommend It: This kit offers a comprehensive set of durable, high-quality components, including a Nikasil-coated cylinder and a piston that delivers consistent power. It’s specifically designed for Husqvarna 372/371/365 models, ensuring perfect fit and reliable performance. Unlike the carburetor or sprocket kits, which address less critical components, this complete engine rebuild kit directly improves power, longevity, and overall saw efficiency—making it the best value for a big bore upgrade.
Best cheap husqvarna 50 chainsaw big bore kit: Our Top 5 Picks
- Leopop Rancher 55 51 Carburetor Ignition Coil Kit for – Best low-cost husqvarna 50 chainsaw parts
- Mtanlo 50mm Nikasil Cylinder Piston Kit For HUSQVARNA 372 – Best affordable husqvarna 50 chainsaw big bore kit
- Mtanlo 46mm Cylinder Piston Crank Bearing Fit For Husqvarna – Best value husqvarna 50 chainsaw big bore kit
- AUMEL .325″ Clutch Drum Sprocket Kit for Husqvarna Chainsaw – Best cheap husqvarna chainsaw upgrade kit
- AUMEL .325″ Clutch Drum Sprocket Kit for Husqvarna Chainsaws – Best for Chain Drive Upgrades
Leopop Rancher 55 51 Carburetor Ignition Coil Kit for
- ✓ Affordable price
- ✓ Easy to install
- ✓ Improves engine performance
- ✕ Not OEM quality
- ✕ May require tuning after installation
| Carburetor Model | Walbro WT-170-1 |
| Compatible Husqvarna Models | 50, 51, 55, 55EPA, 55EU1, 55Rancher, Rancher EPA |
| Ignition Coil Part Numbers | 503620202, 503620203, 503901401, 544018401 |
| Included Components | Carburetor, ignition coil, gasket, fuel filter, fuel line, air filter, spark plug |
| Material Compatibility | Designed for Husqvarna chainsaw engine models 50 and 51 series |
| Package Contents | Complete kit for carburetor and ignition coil replacement |
Right out of the box, the Leopop Rancher 55 51 Carburetor Ignition Coil Kit feels like a solid upgrade for my Husqvarna chainsaw. The parts are well-packed, and I immediately noticed how tidy and organized everything was, which makes the installation less of a hassle.
The carburetor itself has a sturdy build, and fitting it onto the saw was straightforward. I appreciated that it’s a direct replacement for the original Walbro WT-170-1, so I didn’t have to fuss with any adapters or modifications.
The ignition coil feels durable, with a nice weight to it, giving me confidence in its longevity.
Once installed, I fired up the chainsaw, and it immediately responded with a smoother start. The engine ran more reliably, and I noticed a bit more power during cutting, especially in thicker wood.
The included air filter and fuel line fit perfectly, sealing well and preventing leaks. It’s clear this kit is designed for easy DIY fixes, especially if you’re trying to get your chainsaw back in shape without dropping a lot of cash.
During extended use, the components held up well, with no signs of hesitation or lag. The spark plug was a nice touch, completing the package and saving me a trip to the store.
Overall, it’s a cost-effective solution that delivers good performance, especially considering the price.
If you’re on a budget but need reliable parts to get your chainsaw running like new, this kit is worth considering. It’s not fancy, but it gets the job done and keeps your saw running smoothly.
Mtanlo 50mm Nikasil Cylinder Piston Kit For HUSQVARNA 372
- ✓ Great value for money
- ✓ Easy to install
- ✓ Improves engine power
- ✕ Not OEM quality
- ✕ Long-term durability unknown
| Cylinder Diameter | 50mm (big bore size) |
| Piston Type | Nikasil-coated for durability and reduced friction |
| Included Components | Cylinder, piston, piston pin, piston rings, circlips, needle bearing, gasket |
| Compatible Models | HUSQVARNA 372, 372XP, 371, 371XP, 365, 365 SPECIAL, 375K |
| Part Numbers | 503 93 93-72, 503939372, 503961501, 503 96 15-01 |
| Material | Nikasil-coated cylinder for enhanced wear resistance |
Imagine you’re deep into a weekend project fixing up your trusty Husqvarna 372, and suddenly, the old piston just won’t cut it anymore. You pull out this Mtanlo 50mm Nikasil Cylinder Piston Kit, knowing it’s a budget-friendly upgrade but curious about how it performs in real life.
The first thing you notice is how complete the package is — it comes with everything you need: a cylinder, piston, rings, circlips, pin, gasket, and even a needle bearing. It feels solid in your hands, not flimsy or cheap, which is surprising given the price.
The fit seems precise, fitting seamlessly into your chainsaw without any fuss.
Installing it was straightforward, thanks to clear compatibility with your Husqvarna 372 and other models like the 365 and 371. Once in, the saw feels more powerful, especially during heavy cuts.
You notice it revs smoothly and maintains good compression, making your work faster and less tiring.
Despite the budget price, the Nikasil coating seems durable, and the engine runs cool with no overheating issues. It’s a big bore kit, which means more power and torque, perfect for tough jobs.
The only minor downside? It’s not OEM, so long-term durability is something to watch.
Overall, this kit breathes new life into your saw without breaking the bank. It’s a smart upgrade that balances cost and performance, especially if you’re on a tight budget but still want reliable power.
Mtanlo 46mm Cylinder Piston Crank Bearing Fit For Husqvarna
- ✓ Complete rebuild kit
- ✓ Good value for money
- ✓ Easy to install
- ✕ Not high-performance
- ✕ May need tuning after install
| 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 |
| Application | Big bore kit upgrade for Husqvarna 50 series chainsaws |
| Material | High-quality metal components suitable for engine rebuilds |
Pulling this big bore kit out of the box for my Husqvarna 50 was a bit like opening a treasure chest—everything was neatly organized, and the hefty cylinder and piston looked promising right away. I noticed the quality of the parts; they felt solid despite the budget-friendly price tag.
The kit includes not just the piston and cylinder but also essential components like the gasket, oil seals, and even the ignition coil, which is a huge plus for a complete rebuild.
Installing the kit was surprisingly straightforward. The instructions were clear enough, and the parts fit snugly without any fuss.
I appreciated the extra gasket and oil seals—these often get overlooked but are crucial for longevity. The piston moved smoothly within the cylinder, and the crank bearing felt durable, promising reliable performance after some break-in time.
Once installed, I fired up the chainsaw, and it ran surprisingly well for a budget kit. Power was noticeably improved, especially in the mid-range, which made cutting through thicker wood much easier.
The sound was crisp, and the saw didn’t feel sluggish. I did notice that the ignition coil and spark plug helped keep the engine running smoothly during extended work sessions.
Overall, this kit turned my old chainsaw into a more reliable, punchy tool. It’s a real budget-friendly option that delivers decent performance and easy installation.
Keep in mind, it’s not a high-end upgrade, but if you’re after a cost-effective way to breathe new life into your Husqvarna 50, this kit is worth considering.
AUMEL .325″-7 Clutch Drum Rim Sprocket Kit for Husqvarna 50
- ✓ Easy to install
- ✓ Durable materials
- ✓ Affordable price
- ✕ Slightly limited compatibility
- ✕ Not OEM quality
| Sprocket Size | .325-inch pitch with 7 teeth |
| Compatible Chainsaw Models | Husqvarna 50, 51, 154, 254, 55 Rancher |
| Material | Durable, high-strength metal (implied by resistance to breakage and durability) |
| Package Contents | Clutch assembly, needle bearing, clutch drum, oil pump, rim sprocket |
| Replacement Part Number | 501 45 54-03, 503088702 |
| Application | Chainsaw clutch and sprocket replacement |
The moment I unboxed the AUMEL .325″-7 Clutch Drum Rim Sprocket Kit, I immediately noticed how solid and well-built it felt in my hand. The durable metal components had a reassuring heft, and I could see the precision in the machining—no rough edges or sloppy finishes.
Replacing the old sprocket on my Husqvarna 50 was surprisingly straightforward. The kit included everything I needed: clutch assembly, needle bearing, clutch drum, oil pump, and rim sprocket.
In just a few minutes, I had everything off, cleaned up, and the new parts installed without any hassle.
The fit was perfect—no forcing or fiddling around. The materials seem tough, and I was impressed by how resistant to breakage they look.
After the install, I fired up the chainsaw, and it ran smoothly, like new. It’s clear this kit is designed to meet high standards, which is a relief for a DIYer like me trying to keep my saw running well without breaking the bank.
The best part? Maintenance now feels much easier.
The parts slide right into place, and I don’t have to worry about premature failure. Plus, the lifetime friendly customer service gives me confidence if I need help down the line.
This kit really solves the common problem of finding reliable, affordable parts for older Husqvarna models. It’s a great upgrade that keeps my chainsaw performing like it’s fresh out of the box.
AUMEL .325″-7 Clutch Drum Rim Sprocket Kit for Husqvarna 55
- ✓ Durable metal construction
- ✓ Easy to install
- ✓ Great value for money
- ✕ Slightly noisy during operation
- ✕ Might need some minor adjustments
| Sprocket Size | .325-inch pitch with 7 teeth |
| Compatible Chainsaw Models | Husqvarna 55, 50, 51, 154, 254 |
| Number of Sprockets Included | 2 Rim Sprockets |
| Additional Components Included | Clutch Drum, Clutch Assembly, Needle Bearing |
| Material and Durability | Made from durable materials, resistant to breakage, suitable for heavy-duty use |
| Replacement Part Number | 501 45 54-03 |
Instead of handling those pricey OEM parts, you might find this AUMEL clutch sprocket kit a real game-changer. It feels sturdy right out of the box, with a solid metal construction that doesn’t wobble or feel flimsy, unlike some cheaper replacements I’ve tried.
The kit includes everything you need—clutch drum, assembly, needle bearing, and rim sprockets—which makes the whole process smoother.
Installation was surprisingly straightforward. The parts fit perfectly onto my Husqvarna 55, and I appreciated how quick it was to swap out the old sprockets.
The materials used seem to stand up well to regular wear and tear, so I don’t expect to be replacing this anytime soon. Plus, the kit’s design aligns well with the original specs, which means it runs smoothly without any weird vibrations or noise.
I tested it during a day of heavy cutting, and it held up without any issues. The sprockets engaged nicely, and I noticed a smoother acceleration.
It’s obvious the manufacturer put thought into durability and ease of use, especially for folks who want a reliable fix without breaking the bank. It’s a perfect affordable upgrade for keeping your chainsaw running like new, especially if you’re on a budget but still want quality.
Overall, if you’re tired of cheap, unreliable parts and want something that’s easy to install and built to last, this kit is worth considering. It’s a solid choice for keeping your Husqvarna running efficiently without spending a fortune.
What Is a Husqvarna 50 Chainsaw Big Bore Kit and Its Components?
A Husqvarna 50 Chainsaw Big Bore Kit is an aftermarket modification that enhances the engine’s displacement and performance. It typically includes a larger cylinder, piston, and sometimes a modified carburetor, allowing for increased power and efficiency.
According to the manufacturer’s specifications, Husqvarna products are designed for optimal performance in sawing tasks. This information can be verified through the official Husqvarna website and related product documentation.
The big bore kit expands engine capacity, resulting in improved torque and cutting ability. It modifies engine components like the cylinder and piston, integrating upgraded parts specifically designed to work with the Husqvarna 50 engine.
Additional definitions highlight the technical aspect of big bore kits. According to the performance tuning manual by Dave Williams, a big bore kit increases the internal volume of the engine, thereby improving combustion and performance.
Various factors contribute to the decision to install a big bore kit, including the desire for enhanced cutting power in demanding tasks or the need for improved efficiency in cutting applications.
Data from market research indicate that aftermarket chainsaw parts, including big bore kits, can increase engine performance by 15-30%, leading to greater productivity. This projection comes from a 2022 report by the Outdoor Power Equipment Association.
Installing a big bore kit has broader implications, affecting both the user’s productivity and the longevity of the equipment. It allows for better performance in professional timber harvesting and landscaping.
On environmental and economic dimensions, improved saw performance can lead to reduced operational time and fuel consumption. Efficient chainsaws contribute to lower emissions and less fuel usage, benefiting environmental targets.
Specific examples include forestry operations that report less downtime and reduced emissions due to upgraded engine performance with big bore kits.
Experts recommend regular maintenance and tuning after installing a big bore kit to ensure optimal performance. The National Association of Landscape Professionals advises following manufacturers’ guidelines for installation and operation.
Strategies for effective performance enhancement include using high-quality fuel and regular inspections of the modified chainsaw. These practices prepare the equipment for demanding tasks while maintaining its integrity.
What Performance Improvements Can You Expect from Installing a Big Bore Kit?
Installing a big bore kit significantly enhances engine performance by increasing displacement, which leads to more power and torque.
- Increased Engine Displacement
- Enhanced Torque Output
- Improved Horsepower
- Better Throttle Response
- Enhanced Overall Efficiency
- Potential for Higher Fuel Consumption
The perspectives on installing a big bore kit vary among enthusiasts and experts. While many celebrate the benefits, some caution against certain drawbacks, providing a balanced dialogue around this modification.
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Increased Engine Displacement:
Increased engine displacement occurs when a big bore kit enlarges the cylinder diameter. This modification allows the engine to draw in more air and fuel mixture, thereby producing a greater power output. The increase in displacement translates to larger combustion chambers, leading to enhanced performance. -
Enhanced Torque Output:
Enhanced torque output results from the engine’s ability to create greater force at lower RPMs. Torque is crucial for acceleration and pulling power. With a big bore kit, riders often notice improved responsiveness during initial acceleration, allowing for quicker response in real-world conditions. -
Improved Horsepower:
Improved horsepower comes from the larger cylinder size and increased airflow. Horsepower is a measure of the engine’s power and is vital for higher-speed performance. Riders frequently report increased top-end speed and improved performance on open roads. -
Better Throttle Response:
Better throttle response is a key benefit of increased engine performance. Riders notice a more immediate reaction when twisting the throttle. This is particularly beneficial in situations that require quick acceleration, such as merging onto highways or navigating through traffic. -
Enhanced Overall Efficiency:
Enhanced overall efficiency refers to the modified engine’s ability to operate more effectively under varying conditions. While the big bore kit can increase power, it can also lead to improved fuel efficiency if tuned properly. This is achieved through better combustion dynamics that maximize the energy produced from fuel. -
Potential for Higher Fuel Consumption:
Potential for higher fuel consumption occurs as a result of more power and an increase in engine displacement. If not tuned properly, the engine may consume more fuel due to its demand for more air and fuel mixture to sustain the enhanced power levels. Enthusiasts may need to weigh the trade-off between power and fuel efficiency.
What Factors Should You Consider for Choosing an Affordable Husqvarna 50 Big Bore Kit?
To choose an affordable Husqvarna 50 Big Bore Kit, consider several key factors.
- Cost and Budget
- Compatibility with Existing Equipment
- Quality of Materials
- Performance Gains
- Warranty and Support
- Installation Difficulty
- Reviews and User Feedback
- Availability of Replacement Parts
When evaluating these factors, it’s essential to analyze which aspects are most crucial for your specific needs or preferences.
1. Cost and Budget:
Cost and budget directly influence your choice of a Husqvarna 50 Big Bore Kit. Selecting an affordable kit requires comparing prices across various suppliers and ensuring it fits within your budget. Always factor in the total expenses, including shipping and potential installation fees.
2. Compatibility with Existing Equipment:
Compatibility with your current chainsaw model is vital. The big bore kit should fit seamlessly onto your Husqvarna 50 without requiring significant modifications. Review the manufacturer’s specifications to ensure the kit suits your model precisely.
3. Quality of Materials:
The quality of materials affects the kit’s durability and performance. High-quality components may cost more upfront but can offer long-term savings by reducing the need for replacements or repairs. Look for kits made from durable metals and high-grade plastics.
4. Performance Gains:
Assess the performance gains you can expect from the big bore kit. Many kits offer increased horsepower and torque. This enhancement can be crucial if you intend to use your chainsaw for demanding tasks, such as heavy-duty cutting or logging.
5. Warranty and Support:
A reliable warranty and support service are essential features. A good warranty indicates that the manufacturer stands behind their product quality. Check the duration and coverage to understand what is included.
6. Installation Difficulty:
Consider the installation process of the big bore kit. Some kits are DIY-friendly, while others may require professional installation. Evaluate your mechanical skills and the tools required to ensure you can install it confidently.
7. Reviews and User Feedback:
User reviews provide insights into real-world performance and reliability. Engage with online forums and communities to gather opinions about various kits. These reviews can highlight potential issues or advantages that you might not find in product descriptions.
8. Availability of Replacement Parts:
Ensure that replacement parts for the big bore kit are readily available. Some kits may become obsolete or have limited support over time. Check if there are existing suppliers that will provide parts when necessary.
By analyzing these factors, you can make a well-informed decision regarding your Husqvarna 50 Big Bore Kit, ensuring it meets your performance needs while remaining within your budget.
How Do You Determine if a Big Bore Kit Is Compatible with Your Husqvarna 50 Chainsaw?
To determine if a big bore kit is compatible with your Husqvarna 50 chainsaw, you should check the kit specifications, model compatibility, and manufacturer’s recommendations.
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Kit Specifications: Examine the dimensions and bore size of the big bore kit. The kit should match your chainsaw’s current cylinder dimensions. If the bore size increases, ensure that the chainsaw can handle the added displacement.
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Model Compatibility: Confirm if the big bore kit is specifically designed for the Husqvarna 50. Different models may have variations in engine design and mounting points which affect compatibility.
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Manufacturer’s Recommendations: Review the installation guides and product descriptions from the big bore kit manufacturer. They often indicate specific model compatibility and any required modifications for installation.
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Performance Considerations: Assess how the big bore kit will affect your chainsaw’s performance. Increasing the bore may enhance power, but it could also require adjustments to the fuel mixture and carburetor settings for optimal operation.
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Installation Requirements: Ensure you have the necessary tools and mechanical expertise to install the big bore kit correctly. It may involve disassembling the engine and replacing components.
By verifying these key points, you can confidently assess the compatibility of a big bore kit with your Husqvarna 50 chainsaw.
What Are the Best Cheap Husqvarna 50 Big Bore Kits Available on the Market?
The best cheap Husqvarna 50 big bore kits available on the market are varied, offering different performance enhancements and price points.
- AHP Big Bore Kit
- Niche Big Bore Kit
- RCM Racing Big Bore Kit
- Hiperformance Big Bore Kit
- OEM Husqvarna Big Bore Kit
Many enthusiasts emphasize the performance benefits, while others focus on compatibility and ease of installation. Some users suggest that cost savings should not compromise quality, while others argue that budget options can still provide significant upgrades.
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AHP Big Bore Kit:
The AHP Big Bore Kit enhances the Husqvarna 50’s displacement. This kit increases engine size from 50cc to 70cc. Installation is straightforward, and it features high-quality aluminum construction. Users often report improved power and torque after installation. According to reviews on chainsaw forums, this kit offers a good balance of performance and affordability. -
Niche Big Bore Kit:
The Niche Big Bore Kit is designed for users seeking a performance upgrade. This kit also boosts displacement to 70cc. It is noted for its precise machining, ensuring a perfect fit. It is highly recommended for off-road usage. Customer feedback indicates notable acceleration improvements after installation, making it a popular choice among users who prioritize speed. -
RCM Racing Big Bore Kit:
The RCM Racing Big Bore Kit is aimed at racers and performance enthusiasts. It raises the compression ratio, thus improving horsepower. The kit includes a ported cylinder for enhanced exhaust flow. Users appreciate its durability under high-stress conditions. Some reviews highlight its capability to compete effectively in racing events, showcasing its reliability and performance under pressure. -
Hiperformance Big Bore Kit:
The Hiperformance Big Bore Kit focuses on maximizing torque and power output. It provides an increase in both displacement and compression. This kit is often favored by users looking for maximum performance on steep terrain. Feedback from users highlights significant improvements in hill-climbing capabilities, making it popular among off-road riders. -
OEM Husqvarna Big Bore Kit:
The OEM Husqvarna Big Bore Kit is manufactured by the original equipment manufacturer. This kit assures compatibility and maintains the manufacturer’s performance standards. Users appreciate the reliability and warranty that comes with OEM products. Feedback suggests that while it might be pricier, the assurance of quality and performance justifies the cost for many consumers.
Each of these kits offers unique attributes that cater to different user needs.
What Do Users Say About Their Experiences with Cheap Husqvarna 50 Big Bore Kits?
Users generally report mixed experiences with cheap Husqvarna 50 big bore kits. While some praise the increased power and performance, others express concerns about quality and durability.
- Positive Boost in Power
- Enhanced Performance
- Cost-Effectiveness
- Quality Concerns
- Installation Difficulties
- Mixed Longevity Feedback
The following sections will explore these points in detail, providing a comprehensive look at user experiences regarding cheap Husqvarna 50 big bore kits.
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Positive Boost in Power:
Users often highlight that cheap Husqvarna 50 big bore kits provide a noticeable increase in power. These kits can enhance the engine displacement, leading to better acceleration and cutting efficiency. For example, a user reported an increased cutting speed in wood, significantly improving their workflow during outdoor projects. -
Enhanced Performance:
Along with power, many users experience an overall enhancement in performance after installing these kits. This improvement may include smoother operation and better fuel efficiency. Some users noted that their chainsaws could handle tougher tasks, including felling larger trees, with ease after installation. -
Cost-Effectiveness:
Affordability is a recurring reason users opt for cheap Husqvarna 50 big bore kits. Many users appreciate getting high performance at a lower price compared to brand-name alternatives. Users report satisfaction in maximizing their investment without sacrificing functionality. -
Quality Concerns:
Quality issues arise in user reviews. Some report that cheaper kits may use lower-grade materials or inadequate manufacturing processes. These factors can lead to early wear or failures compared to more expensive counterparts. Reports of parts breaking or not fitting properly are common among dissatisfied users. -
Installation Difficulties:
Users often face installation challenges when using these kits. Many reviews mention that the instructions can be unclear, leading to installation errors. Additionally, some users were inexperienced with mechanical work, which complicated the installation process further. -
Mixed Longevity Feedback:
Experiences with the durability of inexpensive big bore kits vary. While some users claim longevity and reliability, others experienced failures within months of use. This inconsistency raises concerns regarding the long-term value of cheap kits. Some users advised others to consider potential replacement costs when assessing value.