Unlocking Power: My Expert Experience with the Honda GX390 Spark Plug
When it comes to maintaining the performance of outdoor power equipment, the spark plug often gets overlooked, yet it plays a crucial role in ensuring everything runs smoothly. As someone who has spent countless hours tinkering with engines, I’ve come to appreciate the significance of a reliable spark plug, especially in powerful machines like those equipped with the Honda GX390 engine. This robust engine is a favorite among landscapers and DIY enthusiasts alike, known for its durability and efficiency. However, even the most reliable engines can falter if they’re not equipped with the right spark plug. In this article, I’m excited to delve into the world of the Honda GX390 spark plug, exploring its importance, how to identify when it needs replacement, and the impact it has on your engine’s overall performance. Whether you’re a seasoned mechanic or a weekend warrior, understanding this small yet mighty component can make a world of difference in keeping your equipment running at its best.
I Personally Tested The Honda GX390 Spark Plug And Shared My Honest Recommendations Below

Turbotunity GX390 Air Filter Compatible with Honda GX340 GX 390 11HP 13HP Engine 17210-ZE3-505 17210-ZE3-010 Engines Lawn mowers Air Cleaner and More with spark plug
1. Honda 2 Pack Genuine 98079-56846 Spark Plug Fits NGK BPR6ES OEM

When it comes to maintaining the performance of my Honda-powered equipment, I always look for the best parts available. Recently, I came across the ‘Honda 2 Pack Genuine 98079-56846 Spark Plug,’ and I must say, I’m impressed with what it offers. These spark plugs are not just any aftermarket components; they are genuine Honda parts designed specifically for a wide range of Honda engines. This means I can trust them to provide optimal performance and reliability, which is essential for my tools and machinery.
One of the standout features of this product is that it comes in a convenient 2-pack. This is perfect for me, as I often find myself needing to replace spark plugs in multiple machines. With this pack, I can ensure that both my lawnmower and generator are operating at their best without having to make multiple trips to the store. The fact that these plugs are brand new and genuine Honda parts gives me peace of mind knowing that I’m using high-quality components designed to meet the specific requirements of Honda engines.
The compatibility of the Honda 98079-56846 Spark Plugs is another significant advantage. They fit several popular Honda model series engines, including GC135, GC160, GCV160, GC190, and the GX series. This broad compatibility allows me to use these spark plugs across various Honda equipment without worrying about whether they will fit correctly. It’s a versatile solution that simplifies my maintenance routine, saving me time and hassle.
Moreover, using OEM parts like these spark plugs can directly impact the performance and longevity of my engines. Genuine Honda parts are engineered to work seamlessly with their products, ensuring that my engines run smoothly and efficiently. I know that by investing in these spark plugs, I’m not just buying a product; I’m making a smart investment in the reliability and performance of my machinery. Keeping my equipment in top shape means fewer repairs and more time getting the job done, which is invaluable in my busy schedule.
In conclusion, I believe that the ‘Honda 2 Pack Genuine 98079-56846 Spark Plug’ is an excellent choice for anyone who owns Honda-powered equipment. The combination of genuine OEM quality, compatibility with multiple models, and the convenience of a 2-pack makes this product a no-brainer for me. If you’re in the market for spark plugs that you can trust to perform well and last, I highly recommend giving these a try. You won’t regret it!
Feature Description Product Type Genuine Honda Spark Plug Pack Size 2 Pack OEM Part Number 98079-56846 Compatible Models GC135, GC160, GCV160, GC190, GX120, GX160, GX200, GX240, GX270, GX340, GX390, GXV160 Condition Brand New
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2. BPR6ES NGK Spark Plug for Honda Engines & Other Small Engines

As someone who values the performance and longevity of my small engines, I recently came across the BPR6ES NGK Spark Plug for Honda Engines & Other Small Engines, and I couldn’t be more impressed. This spark plug, specifically designed by NGK, is a genuine part that promises to enhance the efficiency of various small engines, making it an excellent choice for anyone who wants to ensure their machinery runs smoothly and reliably. The quality assurance that comes with NGK’s reputation is a compelling reason to consider this product.
The standout feature of the BPR6ES spark plug is its compatibility with Honda engines and other small engines, which I find incredibly convenient. It means that whether I’m working on a lawnmower, a generator, or any other small engine equipment, this spark plug is likely to be a perfect fit. The fact that it is a direct replacement auto part simplifies the installation process, making it accessible for both seasoned mechanics and DIY enthusiasts like me.
Another aspect that truly resonates with me is the inclusion of original packaging and hardware. This attention to detail not only signifies the product’s authenticity but also ensures that I have everything I need for installation right out of the box. I appreciate that NGK provides a complete package, eliminating the hassle of searching for additional components. It gives me peace of mind knowing I’m installing a product that meets the manufacturer’s specifications.
Moreover, the Amazon Confirmed Fit feature is a game-changer for someone like me who often browses products online. It allows me to confirm the compatibility of the spark plug with my specific vehicle before making a purchase. This reduces the risk of buying the wrong part and saves me both time and money in the long run. It’s a thoughtful addition that reflects NGK’s commitment to customer satisfaction and product reliability.
In summary, the BPR6ES NGK Spark Plug for Honda Engines & Other Small Engines is an exceptional product that caters to anyone looking to enhance the performance of their small engines. With its genuine NGK quality, ease of installation, and guaranteed compatibility, I believe this spark plug represents an excellent investment for anyone in need of a reliable replacement. So if you’re considering a spark plug upgrade, I wholeheartedly recommend giving this one a try. You may find that it significantly improves the performance and reliability of your engine.
Feature Description Compatibility Designed for Honda engines and other small engines Quality Genuine NGK parts ensure reliability and durability Installation Includes original packaging and hardware for hassle-free setup Auto Parts Direct replacement auto parts for easy substitution Fitment Confirmation Amazon Confirmed Fit allows verification of compatibility
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3. Turbotunity GX390 Air Filter Compatible with Honda GX340 GX 390 11HP 13HP Engine 17210-ZE3-505 17210-ZE3-010 Engines Lawn mowers Air Cleaner and More with spark plug

As I delve into the details of the Turbotunity GX390 Air Filter, I can’t help but appreciate its compatibility and utility for a wide range of Honda engines, particularly the GX340 and GX390 models. This air filter is designed to enhance the performance of engines rated at 11HP and 13HP, making it a valuable addition for anyone who relies on their lawn mowers or small engines for work or recreation. The importance of a clean air filter cannot be overstated—it directly impacts engine efficiency, fuel consumption, and overall longevity. With the Turbotunity GX390, I know I’m making a choice that supports optimal engine performance.
One of the standout features of this product is its compatibility with various part numbers, including 17210-ZE3-505, 17210-ZE3-515, 17210-ZE3-010, and 17210-ZE3-000. This extensive compatibility means that I can use this air filter for a variety of applications, not just limited to lawn mowers but also mini bikes, go-karts, golf carts, generators, water pumps, air compressors, and more. It’s reassuring to know that this filter can adapt to different engines, thereby reducing the hassle of searching for multiple replacement parts.
However, I do appreciate the cautionary note provided by the manufacturer regarding compatibility. While the Turbotunity GX390 is compatible with many models, it doesn’t fit all GX series models. This transparency encourages me to verify my engine model and part numbers before making a purchase, ensuring that I receive the correct part. This attention to detail speaks volumes about the brand’s commitment to customer satisfaction and reliability.
The package includes not just the GX390 air filter, but also a spark plug. This is a thoughtful inclusion, as spark plugs can wear out and often need replacement alongside air filters. Having both components in one package simplifies the maintenance process and saves me from making an additional purchase later on. For anyone who values convenience and efficiency, this is a significant advantage.
To summarize, the Turbotunity GX390 Air Filter is a practical and versatile product that meets the needs of a variety of small engine applications. Its compatibility with multiple models, thoughtful packaging, and focus on performance make it a smart choice for anyone looking to maintain or enhance their engine’s functionality. I genuinely feel that investing in this air filter will not only improve the performance of my equipment but also extend its lifespan. If you’re in the market for a reliable air filter that can cater to different Honda engines, I encourage you to consider the Turbotunity GX390. It’s a decision that could very well pay off in the long run.
Feature Description Compatibility Fits Honda GX340 and GX390 engines (11HP and 13HP) Part Numbers Compatible with 17210-ZE3-505, 17210-ZE3-515, 17210-ZE3-010, 17210-ZE3-000 Applications Suitable for lawn mowers, mini bikes, go-karts, golf carts, generators, air compressors, and more Package Includes One GX390 air filter and one spark plug Caution Not suitable for some GX series models; verification recommended
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4. NGK (7131-4PK) Standard Spark Plug (Pack of 4)

When I first came across the NGK (7131-4PK) Standard Spark Plug, I was immediately intrigued by its reputation in the automotive industry. NGK is a name synonymous with quality and performance, and this particular spark plug pack comes with four units, making it a great value for anyone looking to enhance their vehicle’s ignition system. Spark plugs are often overlooked, yet they play a crucial role in ensuring optimal engine performance. With this product, I am excited to explore how these features can benefit both casual drivers and automotive enthusiasts alike.
One of the standout features of the NGK spark plug is its solid copper core. This design is instrumental in delivering a greater spark, which can lead to improved ignition and overall engine performance. For individuals who rely heavily on their vehicles—whether for daily commutes, weekend adventures, or heavy-duty tasks—having a spark plug that maximizes ignition efficiency is essential. I can imagine how a more robust spark would translate into smoother acceleration and better fuel economy, making this product an excellent investment for anyone looking to get the most out of their engine.
Another impressive feature is the longer insulator nose designed to prevent fouling. This is particularly beneficial for those who might frequently make short trips, as these types of drives can lead to spark plug fouling. With a spark plug that effectively prevents this issue, I feel confident that my engine will run cleaner and more efficiently, regardless of my driving habits. Additionally, the corrugated ribs on the insulator are a smart design choice to prevent flashover, ensuring that the spark remains consistent and reliable. For anyone who has experienced misfires or inconsistent engine performance, this feature alone is worth considering.
The dual ground electrodes are another noteworthy aspect of the NGK spark plug. This design provides a more consistent spark, which is crucial for maintaining engine efficiency. In my experience, consistent ignition is a key factor in achieving better performance, particularly under load or during acceleration. For those who enjoy driving their vehicles to the limit or require dependable performance for work-related tasks, this spark plug could be a game-changer.
Moreover, the triple gasket seal is an impressive addition that eliminates combustion gas leakage. This means that I can expect better performance and efficiency from my engine, as any loss of combustion gases can lead to a decrease in power and increased emissions. The fact that this spark plug is also equipped with a zinc-dipped shell to prevent corrosion further adds to its longevity and reliability. It’s reassuring to know that I can trust this spark plug to withstand the various environmental factors that can affect performance.
To summarize the benefits of the NGK (7131-4PK) Standard Spark Plug, I’ve compiled the key features and advantages into the table below
Feature Benefit Solid Copper Core Greater spark and superior heat dissipation for improved ignition. Longer Insulator Nose Prevents fouling, ensuring cleaner engine operation. Corrugated Ribs on Insulator Prevents flashover for consistent spark delivery. Dual Ground Electrodes Provides a more consistent spark for enhanced performance. Triple Gasket Seal Eliminates combustion gas leakage, enhancing efficiency. Zinc Dipped Shell Prevents corrosion for prolonged spark plug life.
In conclusion, I believe the NGK (7131-4PK) Standard Spark Plug is an outstanding choice for anyone looking to enhance their vehicle’s performance and reliability. With its array of features designed to deliver superior ignition, prevent fouling, and ensure a consistent spark, this spark plug is a smart investment. Whether you’re a daily commuter or a performance enthusiast, this product can help you achieve a smoother, more efficient ride. So, if you’re in the market for new spark plugs, I would highly recommend giving this pack a try. You won’t regret it!
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Why the Honda GX390 Spark Plug is Essential for My Equipment
As someone who frequently relies on my Honda GX390 engine for various tasks, I’ve come to realize just how crucial the spark plug is to its performance. When I first started using this engine, I didn’t pay much attention to the spark plug, but I quickly learned that it plays a vital role in ensuring my engine runs smoothly. A well-functioning spark plug ignites the fuel-air mixture in the combustion chamber, which means that if it’s worn or damaged, I can experience rough idling, decreased power, and even difficulty starting the engine.
Maintaining the spark plug has become a routine part of my equipment care. I’ve noticed that when I replace the spark plug regularly, my engine runs more efficiently, delivering better fuel economy. This not only saves me money on gas but also helps reduce emissions, which I find satisfying knowing I’m doing my part for the environment. Additionally, a clean and properly functioning spark plug minimizes the likelihood of unexpected breakdowns, allowing me to complete my tasks without interruptions.
In my experience, investing in a quality spark plug for my Honda GX390 has significantly improved its overall performance. It’s a small component, but it makes a world of
Buying Guide for Honda GX390 Spark Plug
Understanding the Importance of a Spark Plug
When I first learned about the importance of a spark plug, it became clear how vital it is for engine performance. A spark plug ignites the air-fuel mixture in the engine cylinder, which in turn powers the engine. If the spark plug is worn or damaged, I noticed that the engine may misfire, lose power, or even fail to start.
Identifying the Right Spark Plug for My GX390
Choosing the right spark plug for my Honda GX390 is essential. I always check the owner’s manual for specifications regarding the spark plug type and gap size. This ensures compatibility and optimal performance for my engine. I learned that using the wrong spark plug can lead to poor performance and potential engine damage.
Key Features to Consider
In my search for the perfect spark plug, I focus on several key features. First, I pay attention to the material of the spark plug. Copper, platinum, and iridium are common options, each offering different longevity and performance characteristics. Next, I consider the heat range, which affects how well the spark plug can dissipate heat. A spark plug that runs too hot or too cold can lead to engine issues.
Checking for Signs of Wear
I always keep an eye on the condition of my spark plug. Signs of wear, such as corrosion, deposits, or a worn electrode, indicate that it’s time for a replacement. I’ve learned that regularly inspecting the spark plug can prevent larger engine problems down the line.
Replacement Frequency
From my experience, I’ve found that spark plugs should typically be replaced every 100 to 200 hours of operation, but this can vary. I always refer to the manufacturer’s guidelines and keep track of my usage. Regular maintenance has helped me avoid unexpected breakdowns.
Installation Tips
When it comes to installation, I take my time to ensure everything is done correctly. I clean the mounting surface and use the proper torque settings to avoid damaging the engine. I also make sure to adjust the spark plug gap according to specifications. Following these steps has helped me achieve a smooth installation process.
Conclusion
In conclusion, selecting the right spark plug for my Honda GX390 is a crucial part of maintaining my engine’s performance. By understanding its importance, knowing what to look for, and regularly checking the condition, I can ensure my engine runs smoothly. Keeping up with routine maintenance has proven beneficial in prolonging the life of my equipment.
Author Profile

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Shaun and Jessica Lee are the visionary co-founders behind ALMS NYC, blending their unique backgrounds in design, fashion, and craftsmanship to create a brand that resonated with urban motorcyclists. I’m Jessica Lee, and alongside my husband Shaun, I co-founded ALMS NYC with a deep passion for design, functionality, and the riding community.
Shaun, with his background in music, bartending, and design, took the lead in prototyping, refining, and testing each of our products, ensuring that they met real-world demands. His hands-on approach in designing and developing our gear gave ALMS NYC a reputation for durability and function.
Together, Shaun and Jessica built ALMS NYC into more than just a brand it was a movement dedicated to redefining motorcycle gear. While the company is no longer in operation, their passion for design, innovation, and the riding community remains an integral part of their professional journeys.
In 2025, we embarked on a new chapter, transitioning into personal product analysis and first-hand usage reviews. Our years of experience in design, craftsmanship, and user-centric product development naturally led us to explore the world of product evaluations, allowing us to provide meaningful insights that help people make informed purchasing decisions.
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