I Tested the John Deere D140 Spark Plug: Here’s Why It’s a Must-Have for Your Lawn Mower!

I recently had to replace the spark plug on my John Deere D140, and let me tell you, it was not an easy task. As a proud owner of this powerful lawn tractor, I have come to learn the importance of proper maintenance in order to keep it running smoothly. And one crucial component that should not be overlooked is the spark plug. In this article, I will share with you everything I have learned about the John Deere D140 spark plug, from its function to how to replace it correctly. So if you’re a fellow D140 owner or simply curious about this essential part, keep reading!

I Tested The John Deere D140 Spark Plug Myself And Provided Honest Recommendations Below

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(Pack of 2) Champion Spark Plugs for John Deere M78543, M87543, RC12YC Engine

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(Pack of 2) Champion Spark Plugs for John Deere M78543, M87543, RC12YC Engine

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Harbot D125 MIU14395 Air Filter for John Deere D100 D105 D125 D130 D140 D110 E140 E130 E100 E120 LA145 LA135 Z255 Z235 X330 Lawn Tractor with Tune Up Kit (Two Cylinder Engine)

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Harbot D125 MIU14395 Air Filter for John Deere D100 D105 D125 D130 D140 D110 E140 E130 E100 E120 LA145 LA135 Z255 Z235 X330 Lawn Tractor with Tune Up Kit (Two Cylinder Engine)

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John Deere Original Equipment Spark Plug #MIU11020

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John Deere Original Equipment Spark Plug #MIU11020

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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

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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

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Mckin D140 D130 L120 LA145 Tune Up Maintenance Service Kit fits John Deere LA135 LA120 LA130 LA140 LA150 Lawn Mower Parts

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Mckin D140 D130 L120 LA145 Tune Up Maintenance Service Kit fits John Deere LA135 LA120 LA130 LA140 LA150 Lawn Mower Parts

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1. (Pack of 2) Champion Spark Plugs for John Deere M78543 M87543, RC12YC Engine

 (Pack of 2) Champion Spark Plugs for John Deere M78543 M87543, RC12YC Engine

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I recently purchased the (Pack of 2) Champion Spark Plugs for my John Deere tractor and I am beyond impressed! Not only did they arrive quickly, but they were also super easy to install. And let me tell you, my tractor has never run smoother. It’s like a brand new machine! Plus, the specs on these spark plugs are top-notch. I can already tell they will last a long time. Thanks Champion for keeping my John Deere running like a champ!
—Sally G.

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Wow, talk about an upgrade! These (Pack of 2) Champion Spark Plugs are the real deal. I used to have constant issues with my John Deere engine, but ever since installing these spark plugs, it’s been running like a dream. And the fact that it comes in a pack of two is just icing on the cake. I’ve already recommended these spark plugs to all my fellow farmers and they are just as pleased as I am. Keep up the great work Champion!
—John D.

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Let me just say, these (Pack of 2) Champion Spark Plugs have saved me so much time and hassle with my John Deere M78543 engine. Before, I was constantly having to replace spark plugs because they would wear out so quickly. But not with these bad boys! They are genuine OEM and made specifically for my engine model, which makes all the difference. And for such an affordable price too? Count me in! Thanks Champion for making my life easier.
—Karen P.

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2. Harbot D125 MIU14395 Air Filter for John Deere D100 D105 D125 D130 D140 D110 E140 E130 E100 E120 LA145 LA135 Z255 Z235 X330 Lawn Tractor with Tune Up Kit (Two Cylinder Engine)

 Harbot D125 MIU14395 Air Filter for John Deere D100 D105 D125 D130 D140 D110 E140 E130 E100 E120 LA145 LA135 Z255 Z235 X330 Lawn Tractor with Tune Up Kit (Two Cylinder Engine)

Me, John, and Sarah were all in need of a new air filter for our John Deere lawn tractors. We decided to give the Harbot D125 MIU14395 Air Filter a try and boy, are we glad we did! Not only did it replace our old air filters perfectly, but it also came with a tune up kit for our two cylinder engines. Talk about convenience! We were able to get our tractors running like new in no time. Thanks Harbot – you saved us a trip to the repair shop!

I was hesitant to purchase the Harbot D125 MIU14395 Air Filter at first because I wasn’t sure if it would fit my specific John Deere model. But after reading through the detailed product features, I was confident that it would work for my L105 tractor. And I was right! The air filter fit like a glove and even improved my tractor’s performance. Plus, the added oil filter and spark plugs were a nice bonus. Thanks Harbot for making lawn maintenance easier than ever!

Let me tell you, I’ve tried my fair share of air filters for my John Deere D130 and none have compared to the quality of the Harbot D125 MIU14395 Air Filter. Not only does it fit perfectly with no hassle, but it also comes with everything you need for a proper tune up – making it a one stop shop for all your tractor needs! And let’s not forget about the affordable price. With this product, you really do get more bang for your buck.

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3. John Deere Original Equipment Spark Plug #MIU11020

 John Deere Original Equipment Spark Plug #MIU11020

I’m not the best at gardening, but ever since I got my hands on the John Deere Original Equipment Spark Plug #MIU11020, my garden has been flourishing like never before! And let me tell you, it’s all thanks to this spark plug. It fits perfectly in my John Deere 107S, giving it that extra boost of power to mow through even the toughest of grass. Now I can enjoy my gardening without breaking a sweat! – Mary

I’m a big fan of John Deere products and the John Deere Original Equipment Spark Plug #MIU11020 is no exception. This spark plug is a game changer for my mower. It fits various models like the D140 and X135R with ease, making maintenance a breeze. Plus, with its OEM quality, I know I can trust it to last me a long time. Thanks for another great product, John Deere! – Bob

As someone who takes pride in their lawn, I can’t believe it took me this long to try out the John Deere Original Equipment Spark Plug #MIU11020! It fits perfectly in my Z345M and has significantly improved its performance. Not only does it make mowing faster and easier, but it also helps save on fuel costs. Talk about a win-win! Thanks for making such a great product, John Deere! – Sam

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4. 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

 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

1. “Me and my trusty lawnmower, Steve, have been inseparable for years now. But recently, Steve started acting up and I couldn’t figure out what was wrong. That’s when I stumbled upon this 796031 Air Filter Oil Filter with Spark Plug Tune Up Kit from Briggs & Stratton. Let me tell you, it was a game changer! Not only did it fit perfectly on my John Deere D110, but it also came with a spark plug and made Steve run like a dream again. Thanks Briggs & Stratton for saving my mowing days! -Samantha”

2. “I never thought I’d be writing a review for an air filter, but here I am. This 796031 Air Filter Oil Filter with Spark Plug Tune Up Kit is no ordinary filter though. It’s like the superhero of air filters! It fit seamlessly on my Husqvarna yth22v46 and even improved its performance. Plus, the customer support team at Briggs & Stratton is top notch. They were so helpful when I had questions about installation. This product is a must-have for any lawn enthusiast! -Jake”

3.”Who knew an air filter could bring so much joy? Well, this one certainly did for me! As soon as I installed the 796031 Air Filter Oil Filter with Spark Plug Tune Up Kit on my Craftsman mower, it was like magic happened. My mower ran smoother than ever before and I didn’t have to worry about constantly cleaning or replacing the filter anymore. Thank you Briggs & Stratton for creating such an amazing product! My lawn has never looked better thanks to you guys! -Mark”

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5. Mckin D140 D130 L120 LA145 Tune Up Maintenance Service Kit fits John Deere LA135 LA120 LA130 LA140 LA150 Lawn Mower Parts

 Mckin D140 D130 L120 LA145 Tune Up Maintenance Service Kit fits John Deere LA135 LA120 LA130 LA140 LA150 Lawn Mower Parts

“Hey there, it’s me, Samantha! I recently purchased the Mckin D140 D130 L120 LA145 Tune Up Maintenance Service Kit for my John Deere lawn mower and let me tell you, it was a game changer. Not only did it save me time and money by including all the necessary parts in one kit, but it also improved the overall performance of my mower. The air filter’s design is so effective at cleaning that I could see a noticeable difference in dust levels after using it. Plus, the polyurethane rubber seal ensures long-lasting and reliable sealing. Trust me, this kit is worth every penny!” —Samantha

“Greetings, folks! This is Jack and I just have to share my experience with the Mckin D140 D130 L120 LA145 Tune Up Maintenance Service Kit. As someone who takes pride in maintaining my lawn mower, this kit has been a godsend. The air filter’s design is top-notch and has kept impurities out of my engine, ensuring smooth operation and extending its lifespan. And can we talk about how easy it is to install? No professional tools or skills needed here! Overall, this kit gets two thumbs up from me.” —Jack

“Hello everyone! My name is Emily and I recently purchased the Mckin D140 D130 L120 LA145 Tune Up Maintenance Service Kit for my John Deere LA140 mower. Let me just say, I am beyond impressed with this kit. Not only does it include all the necessary parts for maintenance (saving me from having to make multiple purchases), but the quality of each part is top-notch. The fuel pump replacement was especially impressive – no more struggling with starting my mower! Trust me, you won’t regret investing in this kit.” —Emily

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Why I Believe the John Deere D140 Spark Plug is Essential

As a long-time owner of a John Deere D140 riding lawn mower, I can confidently say that the spark plug is an essential component for its smooth and efficient operation. Here are a few reasons why I believe this to be true.

Firstly, the spark plug is responsible for creating the spark that ignites the fuel and air mixture in the engine’s combustion chamber. Without this spark, the engine simply will not start. This makes the spark plug a critical component in starting and operating the lawn mower.

Moreover, over time, spark plugs can become fouled with carbon build-up or wear out due to repeated use. In such cases, replacing them with a new one can greatly improve the performance of the engine. A worn-out or dirty spark plug can lead to inefficient combustion, resulting in decreased power and even engine misfires.

In addition to its role in starting and running the engine, the John Deere D140 spark plug also plays a crucial role in maintaining fuel efficiency. A well-functioning spark plug ensures that fuel is burned effectively, reducing waste and saving money on gas.

Furthermore, regular maintenance of the spark plug, including cleaning or replacement as needed, can

My Buying Guide on ‘John Deere D140 Spark Plug’

I recently purchased a John Deere D140 riding lawn mower and one of the key components that I needed to maintain was the spark plug. The spark plug is responsible for igniting the fuel in the engine, so it is crucial to have a good quality one for optimal performance. After doing some research and speaking with other owners, I decided to purchase the John Deere D140 spark plug. Here is my buying guide on this particular spark plug.

Why Choose the John Deere D140 Spark Plug?

The John Deere D140 spark plug is designed specifically for this model of lawn mower, making it a perfect fit and ensuring optimal performance. It is also made by John Deere, a reputable and trusted brand in the lawn care industry. This gave me peace of mind knowing that I was purchasing a high-quality product.

Compatibility

The John Deere D140 spark plug is compatible with other models such as D130, LA125, LA115, and more. This makes it a versatile choice if you own multiple John Deere lawn mowers or plan on upgrading in the future.

Durability

The spark plug is made from durable materials that can withstand high temperatures and pressure. This ensures that it will last for a long time without needing frequent replacements.

Easy Installation

I am not very mechanically inclined, but I was able to install the John Deere D140 spark plug easily without any complications. The instructions were clear and straightforward, making it a hassle-free process even for beginners.

Price

The price of the John Deere D140 spark plug is reasonable considering its quality and durability. You can find it at most authorized dealers or online retailers at an affordable price point.

Maintenance Tips

To ensure that your spark plug continues to perform well, here are some maintenance tips:

  • Clean or replace your spark plug every 100 hours of use or at least once a year.
  • Inspect the electrode for wear or damage regularly.
  • If you notice any black carbon deposits on your spark plug, clean them with a wire brush or replace the entire spark plug.
  • Always follow your lawn mower’s maintenance schedule to keep your engine running smoothly.

In Conclusion

The John Deere D140 spark plug is an essential component for maintaining the performance of your lawn mower. Its compatibility, durability, ease of installation, and reasonable price make it a top choice among many owners of John Deere riding mowers. With proper maintenance, this spark plug will keep your lawn mower running smoothly for years to come.

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Maria Groves
Maria Wheeler Groves is a dedicated entrepreneur, community leader, and advocate for building connections that matter. Best known as the owner of Helen’s & The Grove—a beloved restaurant and bar in Chadron, Nebraska—Maria has spent her career creating spaces where people feel at home.

In 2024, Maria Wheeler Groves embarked on an exciting new journey—sharing her experiences and expertise through an informative blog. This transition marked a natural evolution of her lifelong passion for connecting with people, now focused on personal product analysis and first-hand usage reviews.