Unlike other models that struggle with fouling or inconsistent starts, the Honda OEM 98079-55846 Spark Plug BPR5ES really shines in real-world testing. After putting it through tough mowing sessions, I noticed it fires up instantly every time, even after weeks of inactivity. Its durable NGK spark electrode delivers a consistent spark, ensuring reliable performance with minimal hassle.
What sets this spark plug apart is its precise fit and high-quality materials, which resist wear and corrosion. This means fewer replacements and smoother operation over the season. I’ve compared it with similar OEM plugs, and the BPR5ES clearly provides better ignition stability and longer-lasting performance. Plus, it’s easy to install—just screw it in and go, saving you time and frustration. Trust me, this one makes mowing easier and more dependable!
Top Recommendation: Honda OEM 98079-55846 Spark Plug BPR5ES
Why We Recommend It: This product offers the most reliable ignition thanks to its high-quality NGK electrode, which resists fouling and wear. Its precise OEM fit ensures easy installation, and the material quality guarantees durability in harsh conditions. Compared to other options, it provides a better balance of performance, longevity, and value.
Best spark plug for honda lawn mower: Our Top 5 Picks
- Honda OEM 98079-55846 Spark Plug BPR5ES – Best spark plug for Honda push mower
- Honda BPR6ES Spark Plug for GCV160 & GCV190 Engines – Best spark plug for small engine mower
- Genuine Honda Spark Plug 98079-55846, Pack of 2 – Best spark plug for lawn mower repair
- Honda OEM Spark Plug 98079-55846 (NGK BPR5ES) – Best spark plug for gas-powered lawn mower
- Honda OEM Walk-Behind Lawn Mower Engines Spark Plug – Best spark plug for lawn mower engine
Honda OEM 98079-55846 Spark Plug BPR5ES
- ✓ Easy to install
- ✓ Reliable ignition
- ✓ Budget-friendly price
- ✕ May need frequent replacement
- ✕ Only fits specific models
| Spark Plug Type | BPR5ES (Copper core, Resistor type) |
| Thread Size | 14mm (standard for Honda small engines) |
| Heat Range | 5 (indicates heat dissipation capacity) |
| Electrode Gap | 0.028 inches (0.7 mm) (typical for this spark plug model) |
| Material | Copper core with nickel-plated shell |
| Application | Designed for Honda lawn mowers and small engines |
You’re crouched over your lawn mower on a Saturday morning, sparks flying from the engine as it struggles to start. You reach for that small, familiar component tucked into your toolbox—the Honda OEM 98079-55846 Spark Plug BPR5ES.
As you pull it out, you notice how clean and shiny it looks, almost like it’s ready to go back into service immediately.
Fitting it in is straightforward, thanks to its precise size and easy-handling design. You screw it in, feeling how snug and secure it is, thanks to the solid ceramic insulator and metal shell.
When you turn the key, there’s an immediate spark, and the engine roars back to life without hesitation.
This spark plug’s performance is noticeable right away. It provides a consistent spark, which means your mower runs smoothly without misfires or rough idling.
It’s built specifically for Honda mowers, so you get that perfect match of durability and fit. Plus, it’s priced right at just over $8, making it a budget-friendly choice that doesn’t skimp on quality.
After using it for a few sessions, I can say it’s reliable. It’s definitely a step up from generic replacements, offering better ignition and longer-lasting performance.
The ceramic insulator stays cool, which helps keep the engine running efficiently during those long mowing sessions. Overall, it feels like a small part, but it makes a big difference in keeping your mower running like new.
If you’re tired of dealing with rough starts or engine hiccups, this spark plug could be your answer. It’s simple to install, dependable, and fits perfectly into your Honda mower’s engine.
Honestly, it’s one of those little upgrades that makes yard work less of a chore.
Honda BPR6ES Spark Plug for GCV160 & GCV190 Engines
- ✓ Reliable ignition performance
- ✓ Easy to install
- ✓ Built to Honda standards
- ✕ No advanced features
| Product Type | Spark Plug |
| Model | BPR6ES |
| Compatible Engines | Honda GCV160 & GCV190 |
| Electrode Gap | 0.030 inches (0.76 mm) |
| Material | Nickel alloy |
| Brand | Honda |
Getting my hands on the Honda BPR6ES Spark Plug was something I’d been meaning to do for a while, especially since my old spark plug was starting to misfire during mowing sessions. When I finally installed this one, I immediately noticed how solid and well-made it felt.
Its ceramic insulator is smooth and clean, and the metal shell has a nice, polished finish. It’s clear Honda pays attention to quality.
Once installed, I fired up my lawn mower, and it ran smoother than it had in months. The plug’s design seems to optimize combustion really well, giving me a more even, steady engine response.
I’ve used it on both my GCV160 and GCV190 engines, and it fits perfectly every time. It’s straightforward to install, thanks to the standard size, and I didn’t have to fuss with any complicated adjustments.
What really impresses me is its reliability. I’ve done a few cuts now, and I haven’t experienced any stalls or misfires.
Plus, the price is pretty reasonable at just over six bucks. It feels like Honda’s quality truly lives up to its reputation, making this spark plug a dependable choice for anyone who wants to keep their lawn mower running smoothly.
Of course, it’s a basic part, so don’t expect bells and whistles. But if you’re after a straightforward, durable spark plug that gets the job done, this is a solid pick.
It’s perfect for routine maintenance or a quick tune-up before the mowing season kicks into high gear.
Genuine Honda Spark Plug 98079-55846, Pack of 2
- ✓ Easy to install
- ✓ OEM quality and fit
- ✓ Great value for the price
- ✕ May be overkill for very old mowers
- ✕ Not for non-Honda engines
| OEM Part Number | 98079-55846 |
| Spark Plug Type | BPR5ES |
| Compatible Engines | Honda GX120, GX140, GX160, GX200, GX240, GX270, GX340, GX390 |
| Number of Pieces | 2 |
| Application | Honda lawn mowers |
| Packaging | Genuine spark plugs in a pack of 2 |
The first time I screwed in one of these Honda spark plugs, I was surprised by how sleek and sturdy they felt in my hand. The smooth, shiny ceramic insulator contrasted nicely against the metal threads, making it easy to handle even with greasy fingers.
When I finally installed the pair into my lawn mower, I immediately noticed how snugly they fit, thanks to the OEM design.
Starting up my Honda lawn mower afterward was noticeably smoother. No more rough idling or hesitation—just a clean, steady start every time.
It’s clear these plugs are built to match Honda’s specifications, which gave me confidence that they’d last longer and perform better than generic options.
What really stood out was how effortlessly I was able to install them—no fuss, no cross-threading. The packaging included two plugs, so I had a backup ready, saving me a trip to the store.
They seem to be compatible with a wide range of Honda engines, which is great if you own multiple machines.
Overall, these plugs deliver on solid performance, especially for maintaining a reliable start and smooth operation. They’re a smart choice if you want to keep your mower running like new without breaking the bank.
Plus, the OEM fit means you won’t have to worry about compatibility issues or premature wear.
Honda OEM Spark Plug 98079-55846 (NGK BPR5ES)
- ✓ Easy to install
- ✓ Reliable ignition
- ✓ Genuine OEM quality
- ✕ Slightly pricier than generic plugs
- ✕ Limited to Honda/compatible engines
| Part Number | 98079-55846 |
| Brand | Honda (OEM NGK) |
| Compatibility | Most Honda small engines and other small engines using NGK BPR5ES spark plugs |
| Type | Spark Plug |
| Price | $6.29 |
| Additional Notes | Check engine numbers to confirm correct fit |
As I unscrewed the Honda OEM Spark Plug 98079-55846 from its packaging, I immediately noticed its solid build. The shiny metal tip and the black ceramic insulator looked crisp and brand new.
It felt hefty enough to suggest durability, yet not overly heavy in my hand.
Fitting it into my lawn mower was a breeze. The threads screwed in smoothly, and the snug fit immediately made me feel confident about its quality.
The NGK BPR5ES design is familiar, which reassures me it’s a reliable OEM part for Honda engines.
Once installed, I turned on the mower and was impressed by how smoothly it started. The spark plug fired consistently, leading to a steady engine performance.
I noticed the engine ran a bit more smoothly than with older, worn-out plugs, especially during cold starts.
The plug’s price at just over six dollars feels fair for a genuine OEM part. It’s compact enough to store easily, and the brand’s reputation for quality gives peace of mind.
I appreciate that it fits most Honda small engines and even some other small engine brands, making it versatile for various equipment.
Overall, this spark plug feels like a small but crucial upgrade. It’s straightforward to install, works reliably, and keeps your mower running efficiently for longer.
If your engine is struggling or has been hard to start, this might just be the simple fix you need.
Honda OEM Walk-Behind Lawn Mower Engines Spark Plug
- ✓ Easy to install
- ✓ Reliable performance
- ✓ OEM quality
- ✕ Slightly pricier than generic plugs
- ✕ Limited availability
| Spark Plug Type | Copper core with nickel-plated shell |
| Thread Size | 14mm (standard for Honda lawn mower engines) |
| Gap Size | 0.030 inches (adjustable based on engine specifications) |
| Electrode Material | Nickel alloy |
| Operating Temperature Range | Approx. 400°C to 850°C |
| Compatibility | Honda walk-behind lawn mower engines |
Unlike some of the more generic spark plugs I’ve tried, this Honda OEM Walk-Behind Lawn Mower Engine Spark Plug feels like it was designed specifically for the job. The metal shell is sturdy, with a clean, precise thread that screws in smoothly without fuss.
You’ll notice right away how snugly it fits into the engine’s cylinder head. No wiggling or cross-threading here, which is a relief when you’re eager to get back to mowing.
The porcelain insulator is crisp white and well-formed, indicating quality manufacturing.
Starting the mower after installing this plug was seamless. It fired up quickly, with a steady, reliable spark that kept the engine running smoothly.
Unlike cheaper alternatives, I didn’t experience misfires or hesitation, even after a few hours of use.
What really stands out is how well it maintains its performance under different conditions. Whether the grass was thick or slightly damp, the engine stayed consistent.
For the price, it feels like a solid investment that could extend the life of your mower.
Overall, this spark plug delivers what you’d expect from an OEM part—dependability, easy installation, and a good fit. It’s a small part, but it makes a noticeable difference in how smoothly your mower runs.
Which Spark Plug is the Best for Honda Lawn Mowers?
Finally, the NGK ZFR5F-11 spark plug is specifically engineered for small engine applications, featuring a design that minimizes fouling and ensures a steady performance. This spark plug is known for its longevity and is a great fit for maintaining the efficiency of Honda lawn mowers in various conditions.
What Factors Should Be Considered When Choosing a Spark Plug for a Honda Lawn Mower?
When choosing the best spark plug for a Honda lawn mower, several factors should be considered to ensure optimal performance and compatibility.
- Type of Spark Plug: There are different types of spark plugs, including copper, platinum, and iridium. Copper spark plugs are typically less expensive and suitable for short-term use, while platinum and iridium plugs offer longer life and better performance, making them ideal for regular lawn mower use.
- Heat Range: The heat range of a spark plug indicates its ability to dissipate heat. It is crucial to select a spark plug with the correct heat range for your Honda lawn mower, as an incorrect heat range can lead to overheating or fouling, affecting engine performance.
- Electrode Gap: The electrode gap refers to the distance between the center and ground electrode. It is important to choose a spark plug with the proper gap as specified in the mower’s manual, as this affects ignition efficiency and overall engine operation.
- Brand Compatibility: Using OEM (Original Equipment Manufacturer) spark plugs is often recommended for Honda lawn mowers. OEM plugs are specifically designed for your mower’s engine, ensuring the best fit and reliability compared to generic alternatives.
- Material Quality: The material of the spark plug can impact its durability and performance. High-quality materials, such as platinum and iridium, can withstand higher temperatures and corrosion, resulting in a longer lifespan and consistent performance over time.
- Service Interval: Consider the recommended service interval for changing spark plugs in your Honda lawn mower. Some plugs may last longer than others, and choosing one that aligns with your maintenance schedule can save time and ensure the mower runs smoothly.
How Does Heat Range Impact Spark Plug Performance in a Honda Lawn Mower?
Heat range significantly affects spark plug performance in a Honda lawn mower.
- Heat Range Definition: The heat range of a spark plug refers to its ability to dissipate heat from the combustion chamber to the engine. A spark plug that runs too hot can cause pre-ignition, while one that runs too cold may foul quickly.
- Optimal Heat Range: Choosing the optimal heat range is crucial for reliable ignition and engine performance. For Honda lawn mowers, a spark plug that is too cold may not reach the necessary temperature to burn off carbon deposits, leading to misfires.
- Effects on Engine Performance: An appropriate heat range ensures that the spark plug operates efficiently, promoting better fuel combustion and engine power. If the heat range is mismatched, it can lead to poor throttle response and overall engine performance.
- Impact on Longevity: The correct heat range can extend the life of the spark plug, as it prevents excessive wear and degradation caused by overheating or fouling. This ultimately means fewer replacements and lower maintenance costs for lawn mower owners.
- Temperature Management: Different operating conditions, such as ambient temperature and load on the engine, can influence heat range selection. Using a spark plug designed for hotter environments in a cooler setting may lead to inefficiencies, while using a cooler plug in warmer conditions could cause overheating.
What Role Does Material Composition Play in Spark Plug Efficiency?
Material composition significantly affects the performance and longevity of spark plugs, especially for specific applications like a Honda lawn mower.
- Copper Core: Copper core spark plugs are known for their excellent thermal conductivity, which helps in dissipating heat quickly. This design enhances performance in small engines, such as those in Honda lawn mowers, by ensuring a consistent spark and reducing the risk of overheating.
- Iridium Tip: Iridium-tipped spark plugs offer superior durability and resistance to wear due to the hardness of iridium. Their fine wire design allows for a smaller spark gap, promoting efficient combustion and better fuel economy, making them ideal for Honda lawn mowers that require reliable ignition under various conditions.
- Platinum Electrode: Platinum spark plugs provide a longer lifespan compared to standard copper plugs, as platinum is more resistant to corrosion and wear. They maintain a stable spark over time, which is beneficial for the consistent performance needed in Honda lawn mowers, especially during prolonged use.
- Nickel Alloy: Nickel alloy spark plugs are generally less expensive and are used in many standard applications. While they may not offer the same level of performance or longevity as iridium or platinum plugs, they can still be effective for Honda lawn mowers that are not heavily used, providing a good balance of cost and functionality.
- Multi-Electrode Design: Spark plugs with a multi-electrode design can enhance ignition efficiency by providing multiple paths for the spark to jump. This feature can be particularly advantageous in lawn mowers, as it ensures a more reliable ignition and improved combustion, leading to smoother operation and better power output.
What are the Signs Indicating a Worn-Out Spark Plug in a Honda Lawn Mower?
Signs indicating a worn-out spark plug in a Honda lawn mower include:
- Hard Starting: Difficulty in starting the mower can indicate that the spark plug is failing to ignite the fuel properly.
- Engine Misfiring: If the engine stutters or misfires while running, it could be due to a spark plug that is no longer providing a consistent spark.
- Poor Acceleration: A noticeable decrease in acceleration or power when mowing can suggest that the spark plug is not firing optimally, affecting engine performance.
- Excessive Emissions: Increased smoke or emissions from the mower can result from unburned fuel due to inefficient spark plug operation.
- Rough Idling: If the engine idles roughly or inconsistently, this may signal that the spark plug is worn and not maintaining a steady spark.
- Visual Inspection: A visual check of the spark plug can reveal signs of wear, such as carbon buildup, cracks, or a worn electrode, indicating it needs replacement.
Hard starting can be a frustrating issue, as it often means the spark plug is struggling to create the necessary spark to ignite the fuel-air mixture in the engine. When this happens, the mower may require multiple attempts to start, indicating a need for a new spark plug.
Engine misfiring is another critical sign; it often manifests as a sudden loss of power or an uneven engine sound. This misfiring occurs when the spark plug fails to produce the required spark consistently, leading to inefficient fuel combustion.
Poor acceleration indicates that the mower is not responding well to throttle inputs, which can be traced back to a spark plug that isn’t functioning effectively. When the spark plug is compromised, it impacts the engine’s ability to generate power smoothly.
Excessive emissions, such as smoke or a strong gas smell, can be a byproduct of a spark plug that is not burning fuel correctly. Instead of a complete burn, the fuel may escape unburned, contributing to higher emissions and indicating a need for spark plug replacement.
Rough idling can be quite noticeable; the engine may vibrate or sound uneven, suggesting that the spark plug is unable to maintain a consistent spark. This inconsistency can lead to further engine problems if not addressed promptly.
Finally, a visual inspection of the spark plug can provide immediate clues about its condition. Look for signs such as carbon deposits, wear on the electrode, or any cracks that may indicate it is time to replace the spark plug to ensure optimal mower performance.
How Often Should You Replace the Spark Plug for Optimal Performance in Your Honda Lawn Mower?
The frequency of spark plug replacement is essential for optimal performance in your Honda lawn mower, and it typically depends on usage and maintenance practices.
- Every 100 hours of operation: For regular use, it is recommended to replace the spark plug every 100 hours of operation to maintain engine efficiency and performance.
- Annually for occasional users: If you use your Honda lawn mower infrequently, replacing the spark plug once a year can ensure that it functions well when you need it.
- Signs of wear: If you notice issues such as hard starting, poor acceleration, or uneven running, it might indicate that the spark plug needs to be replaced regardless of the hour count.
- Type of spark plug: Using the best spark plug for your Honda lawn mower, which is often specified in the user manual, can enhance performance and longevity; for instance, NGK or Honda OEM plugs are usually recommended.
- Environmental factors: If you operate your mower in harsh conditions or over thick grass, you may need to check and replace the spark plug more frequently due to increased wear and carbon buildup.
Replacing the spark plug at these intervals or when you notice signs of wear can help ensure that your Honda lawn mower runs smoothly and efficiently.
Where Can You Find the Best Spark Plugs for Honda Lawn Mowers?
The best spark plugs for Honda lawn mowers can be found at various retailers and online platforms that specialize in lawn equipment and automotive parts.
- OEM Honda Dealers: Original Equipment Manufacturer (OEM) dealers provide spark plugs specifically designed for Honda lawn mowers, ensuring compatibility and optimal performance.
- Automotive Parts Stores: Local automotive parts stores often stock a variety of spark plugs, including those suitable for Honda lawn mowers, allowing you to compare brands and prices.
- Online Retailers: Websites like Amazon, eBay, and specialized lawn care sites offer an extensive selection of spark plugs with customer reviews, making it easier to find the best options for your needs.
- Home Improvement Stores: Chains such as Home Depot or Lowe’s typically have a lawn and garden section where you can find spark plugs compatible with Honda lawn mowers, often at competitive prices.
- Small Engine Repair Shops: Local small engine repair shops can be a great source for high-quality spark plugs and professional advice on the best options for your specific Honda lawn mower model.
OEM Honda Dealers provide unmatched reliability since they offer spark plugs that meet Honda’s specifications, which can help maintain your mower’s performance and longevity.
Automotive Parts Stores are convenient for last-minute purchases, as they allow you to physically inspect the spark plugs and get immediate assistance from knowledgeable staff who can recommend the right type.
Online Retailers give you the advantage of convenience and often better pricing, along with the ability to read customer feedback, which can guide you in selecting the most suitable spark plug for your Honda mower.
Home Improvement Stores not only carry spark plugs but also other lawn care supplies, making it easy to pick up everything you need for maintenance in one trip.
Small Engine Repair Shops are particularly helpful as they not only offer quality products but also provide personalized recommendations based on your mower’s condition and maintenance history.
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