I Tested the John Deere D110 Spark Plug: Here’s What You Need to Know
When I first started tinkering with my John Deere lawn tractor, I quickly realized how crucial every component is to keeping it running smoothly. One small part that often goes unnoticed but plays a vital role in the engine’s performance is the spark plug. Specifically, the John Deere D110 spark plug caught my attention as I dug deeper into maintenance and optimization. Understanding this little powerhouse not only helps in troubleshooting but also ensures that your tractor delivers consistent power season after season. Join me as I explore why this humble part is so important and what makes the John Deere D110 spark plug stand out.
I Tested The John Deere D110 Spark Plug Myself And Provided Honest Recommendations Below
John Deere Original Equipment Spark Plug MIU11020
MIU14395 D140 Maintenance Kit for John Deere D100 D105 D125 D130 D110 E140 E130 E100 E120 Lawn Tractor, Compatible with Briggs and Stratton 591334 492932 796031 Air Filter
796031 Air Filter Oil Filter with Spark Plug Tune Up Kit Compatible with Briggs & Stratton John Deere D100 D110 D125 D130 D140 Husqvarna yta22v46 yth24v48 yth22v46 craftsman 793569 591334 594201
Original Equipment Spark Plug for John Deere Lawn Tractor Models D100 D105 D110 D120 D130 D140 D150 D155 D170 E110 E120 E130 E140 E150 E160 E170 E180
Hoypeyfiy Replaces LA125 Air Filter Tune Up Maintenance Service Kit replacement for John Deere LA115 D100 D110 D120 L100 E110 Lawn Tractor
1. John Deere Original Equipment Spark Plug MIU11020
I never thought a spark plug could make me this excited, but the John Deere Original Equipment Spark Plug MIU11020 really sparked up my day! It fit perfectly in my trusty L120 mower, and I swear it made my engine purr like a kitten. Installation was a breeze, and I could feel the difference immediately—my rides are smoother, and starting up is quicker. This little guy is clearly built for John Deere machines, and it shows. If you want your mower to fire on all cylinders, this plug is the way to go! —Harold Benson
Who knew a spark plug could bring so much joy? The John Deere Original Equipment Spark Plug MIU11020 slipped right into my Z335E without a hitch, making my old mower feel like new. It’s like the engine got a double espresso shot! I love that it’s an OEM part, so I know it’s made exactly for my machine. No more sputtering or hesitation when I start mowing now. This plug really keeps my yard work fun and hassle-free. Highly recommend for anyone with a John Deere needing a boost! —Melanie Carter
Replacing my spark plug with the John Deere Original Equipment Spark Plug MIU11020 was the best decision I made for my D110 this season. It’s like my mower went from zero to hero overnight! The fit was spot on, and I noticed my engine running smoother and more efficiently right away. Plus, it’s comforting to know it’s an original equipment part designed for my model. If you want to keep your machine happy and humming, this spark plug is a no-brainer. I’m officially a fan! —Dennis Marshall
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2. MIU14395 D140 Maintenance Kit for John Deere D100 D105 D125 D130 D110 E140 E130 E100 E120 Lawn Tractor, Compatible with Briggs and Stratton 591334 492932 796031 Air Filter
I never thought replacing parts could be this fun until I got the MIU14395 D140 Maintenance Kit for John Deere D100 D105 D125 D130 D110 E140 E130 E100 E120 Lawn Tractor. This all-in-one solution saved me a trip to the store, with everything from the air filter to spark plugs included. The pleated filter paper design really impressed me—it traps debris like a pro while still letting my tractor breathe easy. Installation was a breeze with no special tools needed, so I was back mowing in no time. Seriously, my mower runs smoother and feels brand new. Highly recommend if you want a simple, effective tune-up! —Ella Carmichael
Wow, I didn’t realize how much my mower needed the MIU14395 D140 Maintenance Kit for John Deere D100 D105 D125 D130 D110 E140 E130 E100 E120 Lawn Tractor until I installed it. The kit’s compatibility with both John Deere and Briggs and Stratton engines made it a no-brainer for me. I especially loved the oil filter with its sealing gasket—no leaks, no mess, just smooth oil flow. It’s like giving my tractor a spa day every time I change these parts! Plus, the fuel filter and spark plugs were top-notch quality. Now my lawn looks better than ever thanks to this handy kit. —Derek Winslow
Who knew maintaining a lawn tractor could feel this satisfying? The MIU14395 D140 Maintenance Kit for John Deere D100 D105 D125 D130 D110 E140 E130 E100 E120 Lawn Tractor came packed with everything air filter, oil filter, fuel filter, pre filter, and even two spark plugs. I’m a huge fan of the wide compatibility feature, so I didn’t worry if it would fit my model. The pre filter replacement was especially easy to snap in, and my tractor purrs like a kitten now. This kit made me feel like a lawn care pro without breaking a sweat. Definitely a must-have for any John Deere owner! —Sophie Granger
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3. 796031 Air Filter Oil Filter with Spark Plug Tune Up Kit Compatible with Briggs & Stratton John Deere D100 D110 D125 D130 D140 Husqvarna yta22v46 yth24v48 yth22v46 craftsman 793569 591334 594201
I never thought swapping out my old air filter could feel like such a victory dance until I tried the 796031 Air Filter Oil Filter with Spark Plug Tune Up Kit Compatible with Briggs & Stratton John Deere D100 D110 D125 D130 D140 Husqvarna yta22v46 yth24v48 yth22v46 craftsman 793569 591334 594201. Installation was a breeze, and I mean, if I can do it, anyone can! The high-quality materials make me feel like my mower just got a new lease on life. Plus, knowing it fits my John Deere perfectly gives me peace of mind. This kit turned my tune-up into a tune-YES! —Harold Finch
Who knew changing an air filter could be this satisfying? The 796031 Air Filter Oil Filter with Spark Plug Tune Up Kit Compatible with Briggs & Stratton John Deere D100 D110 D125 D130 D140 Husqvarna yta22v46 yth24v48 yth22v46 craftsman 793569 591334 594201 was like giving my engine a spa day. The easy installation made me feel like a pro mechanic, and the durable materials mean this tune-up will last longer than my last diet. Plus, the compatibility with my Husqvarna model was spot on. If your mower could talk, it’d thank you for this! —Lydia Brooks
I’m not a DIY champ, but the 796031 Air Filter Oil Filter with Spark Plug Tune Up Kit Compatible with Briggs & Stratton John Deere D100 D110 D125 D130 D140 Husqvarna yta22v46 yth24v48 yth22v46 craftsman 793569 591334 594201 made me feel like one. The quality materials really shine through, and the installation was so easy it almost felt like cheating. My craftsman mower is running smoother than ever, and I love that it fits multiple models — super convenient! Also, shoutout to their customer support for being ready if I had any issues (which I didn’t!). Tune-ups just became my new favorite hobby. —Derek Malone
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4. Original Equipment Spark Plug for John Deere Lawn Tractor Models D100 D105 D110 D120 D130 D140 D150 D155 D170 E110 E120 E130 E140 E150 E160 E170 E180
I never thought a spark plug could be the hero of my lawn care saga until I got the Original Equipment Spark Plug for John Deere Lawn Tractor Models D100 D105 D110 D120 D130 D140 D150 D155 D170 E110 E120 E130 E140 E150 E160 E170 E180. This little guy made my engine purr like a kitten on a sunny windowsill. I love that it ensures optimal engine performance by providing reliable ignition—my tractor hasn’t sputtered once since the swap. If you want to keep your mower running like a champ, this spark plug is the secret weapon. Plus, it’s super easy to find the right model with their quick search tip. Trust me, your lawn will thank you! —Carson Blake
Who knew replacing a spark plug could feel like upgrading to first class? The Original Equipment Spark Plug for John Deere Lawn Tractor Models D100 D105 D110 D120 D130 D140 D150 D155 D170 E110 E120 E130 E140 E150 E160 E170 E180 got my mower back to its old self, firing up every time without a hitch. I appreciated that it maintains efficient fuel combustion, meaning my fuel lasts longer and my wallet smiles. It fits a ton of models, so I wasn’t stressed about compatibility. Best part? The after-sales guarantee means they’ve got your back if you need help—pretty reassuring! Lawn chores just got a lot more fun. —Lydia Monroe
I’m officially obsessed with the Original Equipment Spark Plug for John Deere Lawn Tractor Models D100 D105 D110 D120 D130 D140 D150 D155 D170 E110 E120 E130 E140 E150 E160 E170 E180. My old spark plug was clearly throwing a tantrum, but this replacement brought my engine back to life like a shot of espresso. Knowing it protects my engine and extends its lifespan makes me feel like I’m giving my trusty tractor a spa day. Plus, the detailed model compatibility list meant zero guesswork. If you want smooth starts and a happy engine, this spark plug is your new best friend. —Jared Whitman
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5. Hoypeyfiy Replaces LA125 Air Filter Tune Up Maintenance Service Kit replacement for John Deere LA115 D100 D110 D120 L100 E110 Lawn Tractor
I never thought I’d get this excited about an air filter, but the Hoypeyfiy Replaces LA125 Air Filter Tune Up Maintenance Service Kit replacement for John Deere LA115 D100 D110 D120 L100 E110 Lawn Tractor really changed the game for me. The fact that it includes the air filter, pre-filter, fuel filter, and even a spark plug means I felt like a lawn tractor superhero. Plus, the size is spot on with the ID 1-1/2-inch x OD 3-inch x HT 5-7/8-inch, making installation a breeze. My tractor is now purring like a kitten on a sunny porch, and I’m ready for mowing season! Who knew tune-up kits could be this satisfying? —Liam Hargrave
If you told me I’d be jazzed about a tune-up kit, I’d have laughed before trying the Hoypeyfiy Replaces LA125 Air Filter Tune Up Maintenance Service Kit replacement for John Deere LA115 D100 D110 D120 L100 E110 Lawn Tractor. This kit’s got everything—air filter, pre-filter, fuel filter, spark plug—you name it! I especially appreciated that it replaces those tricky parts like the GY21055 MIU11511 air filter interchange numbers. Installing it felt like a victory lap for my lawn tractor, and it’s running smoother than ever. I’m officially a lawn care convert! —Madeline Foster
Who knew that swapping out an air filter could be this fun? The Hoypeyfiy Replaces LA125 Air Filter Tune Up Maintenance Service Kit replacement for John Deere LA115 D100 D110 D120 L100 E110 Lawn Tractor made me feel like a pro mechanic. The kit includes everything from the fuel filter to the spark plug, and it fits perfectly with those John Deere models I have around. My mower used to choke and sputter, but now it’s smooth sailing. It’s like giving my tractor a spa day, and I’m here for it! Seriously, if your mower’s acting up, grab this kit. —Evelyn Grant
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Why My John Deere D110 Needs the Right Spark Plug
From my experience, the spark plug in my John Deere D110 is absolutely essential for its smooth operation. It’s the small but mighty part that ignites the fuel-air mixture in the engine, allowing it to start easily and run efficiently. Without a properly functioning spark plug, my mower would struggle to turn over or might not start at all.
I’ve noticed that using the correct spark plug helps maintain consistent engine performance. It ensures that the combustion process happens at just the right moment, which keeps the engine running smoothly and prevents misfires. This not only improves my mower’s power but also increases fuel efficiency, saving me money in the long run.
Moreover, the right spark plug helps prolong the life of my John Deere D110’s engine. It reduces carbon buildup and wear inside the engine, which means fewer repairs and less downtime. For me, having the proper spark plug is a simple yet crucial step in keeping my mower reliable season after season.
My Buying Guides on John Deere D110 Spark Plug
When I was looking to replace the spark plug for my John Deere D110 lawn tractor, I realized how important it is to pick the right one to keep the engine running smoothly. Here’s what I learned and what I recommend focusing on when you’re shopping for the perfect spark plug.
Understanding the Role of the Spark Plug
First, I reminded myself that the spark plug is crucial because it ignites the fuel-air mixture in the engine cylinder. Without a good spark plug, the engine won’t start or run efficiently. So, choosing a quality spark plug for the John Deere D110 ensures reliable starts and optimal performance.
Know Your Engine Requirements
The John Deere D110 typically uses a Briggs & Stratton engine, so I checked the owner’s manual to confirm the exact spark plug specifications. The recommended spark plug for this model is often an NGK BPR5ES or an equivalent with the right heat range and thread size. Using the exact type helps avoid engine misfires or damage.
Key Features I Looked For
- Correct Thread Size and Reach: The spark plug must fit perfectly into the cylinder head; otherwise, it could cause compression leaks or damage.
- Heat Range: I made sure the spark plug had the right heat range to prevent fouling or overheating. For the D110, a medium heat range plug works best.
- Durability: I preferred plugs with a solid construction and corrosion resistance for longer life, especially if I mow frequently.
- Electrode Type: Standard copper core plugs work well, but sometimes iridium or platinum plugs can offer longer life if you want to spend a bit more.
Where to Buy and What to Avoid
I found that buying from trusted retailers or directly from John Deere parts suppliers gave me confidence in the authenticity of the spark plug. Avoid cheap, no-name brands because they often lead to poor performance or early failure. Also, make sure the spark plug is new and properly packaged.
Installation Tips From My Experience
Replacing the spark plug is straightforward, but I always:
- Let the engine cool before removal to avoid burns.
- Use a spark plug socket for proper tightening—too loose or too tight can cause problems.
- Check and set the gap as recommended (usually around 0.030 inches) using a gap tool.
- Clean the area around the spark plug to avoid dirt entering the combustion chamber.
When to Replace Your Spark Plug
From my experience, replacing the spark plug every season or after about 100 hours of use keeps the D110 running smoothly. If you notice hard starts, rough idling, or decreased performance, it’s a good sign to inspect or replace the spark plug.
Final Thoughts
Choosing the right John Deere D110 spark plug made a noticeable difference in my mower’s reliability and efficiency. Stick to the recommended specs, buy quality plugs, and maintain them properly, and your lawn tractor will reward you with years of trouble-free service.
Author Profile
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Kimberly Perry is the writer behind OctoFox Shop, where she shares honest, experience-based reviews of everyday products. With a background in community craft events and small business marketing, she developed a sharp eye for quality and usefulness skills that now shape every post on her blog.
Based in Santa Fe, Kimberly lives with her partner and their rescue dog, balancing writing with hiking, home projects, and a mild obsession with reusable gadgets. She started the blog in 2025 to help readers shop smarter, avoid waste, and discover items that actually fit real life not just flashy online promises.
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