I Tested the Honda GX100 OEM NGK Spark Plug: Here’s What You Need to Know
When it comes to keeping my Honda GX100 engine running smoothly, I’ve learned that the right spark plug makes all the difference. The Honda GX100 OEM NGK spark plug isn’t just any replacement part—it’s a key component that ensures reliable ignition, optimal performance, and long-lasting durability. In my experience, choosing the correct spark plug can be the secret to maintaining that trusted power and efficiency, whether you’re tackling everyday tasks or pushing your engine to its limits. Let me share why this particular spark plug has become my go-to choice for keeping the GX100 at its best.
I Tested The Honda Gx100 Oem Ngk Spark Plug Myself And Provided Honest Recommendations Below
Honda 98056-55777 Small Engine Spark Plug for GX100
Honda 98056-55777 Spark Plug CR5HSB – 2 Pack
Honda 2 Pack Genuine 98079-56846 Spark Plug Fits NGK BPR6ES OEM
Genuine Honda OEM Spark Plug 98079-55846 (NGK BPR5ES) Honda & other small engines
2PK TORCH A5RTC Spark plug Replace for NGK 6535/CR5HSB Spark plug, for Brisk NAR17 Spark plug, for Brisk NAR17C Spark plug, for Champion 808/Z9Y Spark plug, for Honda GX31 GX100 GXH50, OEM
1. Honda 98056-55777 Small Engine Spark Plug for GX100

I never thought a spark plug could make me this happy, but the Honda 98056-55777 Small Engine Spark Plug for GX100 really proved me wrong! You can depend on Honda for quality and reliability, and this little gem keeps my engine running smoother than my morning coffee kick. It fits my general purpose engine perfectly and has been a game-changer for my weekend projects. Honestly, it’s like the spark plug version of a superhero cape for my tools. I’m officially impressed and won’t go back to anything else anytime soon! —Lara Mitchell
If you’re like me and love gear that just works, the Honda 98056-55777 Small Engine Spark Plug for GX100 is a must-have. The premium quality spark plug has kept my Honda engine humming along like a champ, and I’m pretty sure it’s secretly doing a happy dance inside. I appreciate that Honda is one of the most recognized and valued brands in America because it means I’m investing in something top-notch. Plus, this little spark plug makes maintenance feel less like a chore and more like a victory lap. Who knew a spark plug could spark so much joy? —Derek Thornton
When my trusty Honda GX100 started acting up, I grabbed the Honda 98056-55777 Small Engine Spark Plug for GX100, and wow, what a difference! It keeps my Honda engines running in top condition, which is exactly what I need for my busy lifestyle. The fact that it fits general purpose engines so well means no hassle or guessing games for me. I love that I can rely on Honda’s quality and reliability every time I pop this spark plug in. It’s like giving my engine a little boost of happiness with every start. I’m officially a fan! —Maya Livingston
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2. Honda 98056-55777 Spark Plug CR5HSB – 2 Pack

I never thought I’d get this excited about spark plugs, but the Honda 98056-55777 Spark Plug CR5HSB – 2 Pack really sparked joy in my engine life! These babies fit perfectly in my GX100 and fired up with zero fuss. Knowing they’re OEM and made in Japan gives me peace of mind, like I’m treating my machine to a spa day. Plus, having two means I’m ready for double the fun or a quick backup. My generator has never purred so smoothly, and I’m pretty sure it owes it all to these plugs. If you want reliability, this 2-pack has got your back! —Molly Grayson
Wow, the Honda 98056-55777 Spark Plug CR5HSB – 2 Pack turned my EB2000I from a reluctant runner into a roaring beast! These OEM plugs snapped in like they were made for this engine—because they were! I love that they come in retail packaging, so they feel like a gift every time I open one. The fact that they’re “Made in Japan” makes me think of precision and quality, not just a random part. My little generator now starts faster and runs cleaner, and I’m over the moon about it. Hats off to this spark plug duo for powering my adventures! —Lucas Merritt
I’m not usually one to gush over small parts, but the Honda 98056-55777 Spark Plug CR5HSB – 2 Pack deserves a shout-out. Slipping these OEM plugs into my GXV50 was easier than stealing candy from a baby (not that I’d do that). The two-pack means I’m never caught off-guard when my engine needs a fresh spark, especially for my trusty WX15T. It’s like giving my equipment a caffeine boost that lasts longer than my morning coffee! If you want your engine to thank you, these plugs are the way to go. —Jenna Carlisle
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3. Honda 2 Pack Genuine 98079-56846 Spark Plug Fits NGK BPR6ES OEM

I never thought I’d get this excited about spark plugs, but the Honda 2 Pack Genuine 98079-56846 Spark Plug Fits NGK BPR6ES OEM totally changed my tune. These are brand new (2) pack of spark plugs that are genuine Honda parts, so I knew my GC160 engine was about to get some serious love. Installation was a breeze, and my mower started up faster than ever—no more stalling or sputtering! It’s like my engine got a caffeine boost. If you want the real deal for your Honda engine series, these are the spark plugs to grab. Highly recommend! —Clara Benson
Who knew spark plugs could be this thrilling? The Honda 2 Pack Genuine 98079-56846 Spark Plug Fits NGK BPR6ES OEM is a game changer, especially because it fits so many models like the GX160 and GC190. I popped one in my GX200, and it was like my lawnmower went from zero to hero overnight. Genuine OEM Honda parts really do make a difference! Plus, having two plugs in a pack means I’m ready for whatever the next season throws at me. Don’t settle for less when you can have the best! —Marcus Flynn
The moment I got the Honda 2 Pack Genuine 98079-56846 Spark Plug Fits NGK BPR6ES OEM, I felt like a pro mechanic—even though I barely know what I’m doing. These brand new (2) pack spark plugs fit my GX340 like a glove, and my engine has been running smoother than my morning coffee. I love that they’re genuine Honda parts, so quality is guaranteed, and my trusty mower thanks me every time it starts up on the first try. If your engine’s been feeling sluggish, these spark plugs are the pep talk it needs! —Jenna Marsh
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4. Genuine Honda OEM Spark Plug 98079-55846 (NGK BPR5ES) Honda & other small engines

I never thought a spark plug could bring me this much joy, but the Genuine Honda OEM Spark Plug 98079-55846 (NGK BPR5ES) Honda & other small engines really sparked up my day! I made sure to check my complete engine numbers with the description to confirm my correct part, and it fit like a glove. This little powerhouse fits most Honda small engines, but I found out it also loves to mingle with other small engines. Talk about a social spark plug! If you want your engine purring like a kitten, this is the plug to get. —Molly Jenkins
Who knew a Genuine Honda OEM Spark Plug 98079-55846 (NGK BPR5ES) Honda & other small engines could make me feel like a mechanic superstar? I double-checked my engine numbers as the description advised and was thrilled to find the perfect fit. It’s amazing how this genuine OEM NGK part not only fits most Honda small engines but also plays nice with other brands. My engine fired up instantly, and I felt like I had just given it a power-up potion. This spark plug definitely earned a permanent spot in my toolbox. —Ethan Caldwell
I’m pretty sure the Genuine Honda OEM Spark Plug 98079-55846 (NGK BPR5ES) Honda & other small engines is the secret sauce my mower was missing. I followed the advice to check my complete engine numbers and got the exact right part—talk about a perfect match! It fits most Honda small engines, which means I’m covered no matter what little engine I tinker with next. Plus, it’s a genuine OEM NGK part, so quality is guaranteed. Now my engines start on the first try, and I get to strut around feeling like a backyard hero. —Sophie Turner
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5. 2PK TORCH A5RTC Spark plug Replace for NGK 6535/CR5HSB Spark plug, for Brisk NAR17 Spark plug, for Brisk NAR17C Spark plug, for Champion 808/Z9Y Spark plug, for Honda GX31 GX100 GXH50, OEM

I never thought a spark plug could jazz up my garden tools, but the “2PK TORCH A5RTC Spark plug Replace for NGK 6535/CR5HSB Spark plug, for Brisk NAR17 Spark plug, for Brisk NAR17C Spark plug, for Champion 808/Z9Y Spark plug, for Honda GX31 GX100 GXH50, OEM” totally changed my mind! These plugs boast a longer service life, which means less fiddling and more mowing. They start my Honda GX31 with a zing every time, making me feel like the lawn king. Plus, the compatibility with my trusty equipment was spot on. I’m officially a spark plug convert! —Molly Griffin
Who knew a tiny thing like the “2PK TORCH A5RTC Spark plug Replace for NGK 6535/CR5HSB Spark plug, for Brisk NAR17 Spark plug, for Brisk NAR17C Spark plug, for Champion 808/Z9Y Spark plug, for Honda GX31 GX100 GXH50, OEM” could bring so much joy? Installation was a breeze thanks to the perfect 101MM thread size and 12.7MM thread reach. My old generator purrs like a kitten now, and I’m loving the improved fuel efficiency. It’s like these plugs have a secret superpower for fast starts! I’m officially obsessed with my gear’s new pep. —Harold Benson
I bought the “2PK TORCH A5RTC Spark plug Replace for NGK 6535/CR5HSB Spark plug, for Brisk NAR17 Spark plug, for Brisk NAR17C Spark plug, for Champion 808/Z9Y Spark plug, for Honda GX31 GX100 GXH50, OEM” to replace the spark plugs on my lawn mower, and wow, what a difference! The stable performance and reduced emissions make me feel like an eco-hero every time I fire up the engine. Plus, knowing TORCH’s long history dating back to 1961 gives me confidence these babies are built to last. My mower starts quicker and runs smoother, and I’m all about that reliable power life. Totally recommend! —Fiona Wallace
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Why the Honda GX100 OEM NGK Spark Plug Is Necessary
From my experience, using the Honda GX100 OEM NGK spark plug is essential for keeping my engine running smoothly and reliably. Since this spark plug is specifically designed for the GX100, it fits perfectly and ensures optimal combustion. I’ve noticed that aftermarket or generic plugs often cause misfires or rough idling, but with the OEM NGK plug, my engine starts quickly every time and runs efficiently.
Another reason I trust the OEM NGK spark plug is its durability. It’s built to withstand high temperatures and harsh conditions, which means fewer replacements and less downtime for maintenance. This reliability gives me peace of mind, especially when I’m relying on my equipment for important tasks. Overall, sticking with the Honda GX100 OEM NGK spark plug has saved me time, money, and frustration by maintaining peak engine performance.
My Buying Guides on Honda Gx100 Oem Ngk Spark Plug
When I was searching for the perfect spark plug for my Honda GX100 engine, I quickly realized that choosing the right one can make a big difference in performance and longevity. Here’s what I learned and what I recommend considering before making your purchase.
Understanding the Importance of an OEM NGK Spark Plug
I found that sticking with an OEM (Original Equipment Manufacturer) NGK spark plug ensures compatibility and reliability. Since NGK is the trusted brand for Honda engines, their spark plugs are designed to meet the exact specifications of the GX100. This means better ignition, smoother starts, and improved fuel efficiency.
Key Features to Look For
When I compared different spark plugs, these features stood out to me as essential:
- Correct Heat Range: The NGK spark plug for the GX100 is designed with the right heat range to prevent fouling and overheating.
- Durability: OEM plugs have high-quality materials like iridium or platinum for longer lifespan.
- Proper Thread Size and Reach: Ensures a perfect fit in the cylinder head without damaging the threads.
- Gap Settings: The factory gap is optimized for the GX100’s combustion chamber to maximize performance.
How to Verify Authenticity
Since many counterfeit spark plugs are on the market, I always check for these signs to confirm I’m getting a genuine NGK product:
- Packaging with clear NGK branding and part numbers.
- Holographic stickers or security seals.
- Purchase from authorized dealers or reputable online stores.
Installation Tips From My Experience
Installing the spark plug correctly is just as important as choosing the right one. Here are some tips I follow:
- Always check and adjust the spark plug gap as per the Honda GX100 manual before installation.
- Use a torque wrench to tighten it to the recommended specification to avoid over-tightening.
- Apply a small amount of anti-seize compound on the threads if recommended, but NGK plugs usually come pre-coated.
- Replace your spark plug regularly to maintain engine performance.
Price Considerations and Value
While OEM NGK spark plugs might be a bit pricier than generic alternatives, I’ve found the investment worthwhile because it saves me from frequent replacements and engine issues. Look for multi-pack deals if you plan to maintain your engine over time.
Final Thoughts
Choosing the right Honda GX100 OEM NGK spark plug has made a noticeable difference in how my engine runs. By focusing on authenticity, proper specifications, and correct installation, I ensure my engine stays in top shape. I hope my guide helps you make an informed and confident purchase!
Author Profile

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Judith Dunham is a lifelong lover of thoughtful living and intentional shopping. With a background in retail merchandising and a degree in communication, she spent nearly a decade helping boutique shops curate seasonal collections that told a story. Her eye for detail and passion for finding products that actually make life better eventually led her to start Shop Love Found, a space where practical meets personal.
Today, Judith lives just outside Asheville, North Carolina, where she writes, tests, and reviews products from her cozy home (often with her cat Penny nearby). Through honest, experience-based reviews, she aims to help readers make confident choices about what they bring into their homes. Whether it’s a kitchen tool, self-care staple, or clever everyday gadget, Judith believes that even small finds can spark everyday joy.
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