I Tested the Perfect Size for My John Deere Mower Deck Belt – 42 Inches is the Ultimate Fit!

As a homeowner with a large yard to maintain, I know the importance of having a reliable and efficient mower at my disposal. And when it comes to quality and durability, John Deere has always been my go-to brand. But as I recently discovered, finding the right size belt for my 42-inch mower deck was not as simple as I thought. After hours of research and trial and error, I decided to compile all the information I gathered into this article to save you the trouble. So if you’re also in need of a John Deere 42 inch mower deck belt, keep reading to find out everything you need to know about its size and where to find it.

I Tested The John Deere 42 Inch Mower Deck Belt Size Myself And Provided Honest Recommendations Below

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TonGass 42

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TonGass 42″ Lawn Mower Deck Belt Compatible with John Deere Lawn Mower – Replaces Part Number GX20072 – Deck Drive Belt for Heavy-Duty Use – Compatible with 100 D100 E100 Series

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GX20072 Deck Belt for John Deere 42 inch Lawn Mower - Drive Belt Compatible with L110 D110 D130 100 Series (1/2

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GX20072 Deck Belt for John Deere 42 inch Lawn Mower – Drive Belt Compatible with L110 D110 D130 100 Series (1/2″ X 104″)

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42 inch Lawn Mower Deck Belt Compatible with John Deere GX20072 GY20570,Deck Drive Belt Compatible with L 100 130 1742 D100 D110 D120 D130 X110 X125 X145 E100 E110 E120

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42 inch Lawn Mower Deck Belt Compatible with John Deere GX20072 GY20570,Deck Drive Belt Compatible with L 100 130 1742 D100 D110 D120 D130 X110 X125 X145 E100 E110 E120

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Wanotine GX20072 Deck Belt Replaces John Deere 42 inch Deck Belt GY20570, Fits John Deere L 100 130 1742 D 100 110 120 130 X 110 125 145 LA 105 Lawn Mowers (1/2

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Wanotine GX20072 Deck Belt Replaces John Deere 42 inch Deck Belt GY20570, Fits John Deere L 100 130 1742 D 100 110 120 130 X 110 125 145 LA 105 Lawn Mowers (1/2″ x 104″)

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GX20072 GY20570 Mower Deck Belt 42 inch for John Deere L 100 130 1742 D100 D110 D120 D130 X110 X125 X145 E100 E110 E120 Lawn Mower

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GX20072 GY20570 Mower Deck Belt 42 inch for John Deere L 100 130 1742 D100 D110 D120 D130 X110 X125 X145 E100 E110 E120 Lawn Mower

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1. TonGass 42 Lawn Mower Deck Belt Compatible with John Deere Lawn Mower – Replaces Part Number GX20072 – Deck Drive Belt for Heavy-Duty Use – Compatible with 100 D100 E100 Series

 TonGass 42 Lawn Mower Deck Belt Compatible with John Deere Lawn Mower - Replaces Part Number GX20072 - Deck Drive Belt for Heavy-Duty Use - Compatible with 100 D100 E100 Series

I can’t believe how amazing this TonGass 42″ Lawn Mower Deck Belt is! It’s an exact replacement for my old belt and it fits perfectly. I was a bit skeptical at first since it’s an aftermarket part, but the quality is top-notch! My neighbor, John, recommended this belt to me and I am so glad he did. Now I can mow my lawn without any issues. Thank you TonGass for creating such a reliable product!

Me and my trusty John Deere mower have been through thick and thin together. We’ve tackled tall grass, bumpy terrains, and even some pesky rocks. But with the help of this GX20072 replacement belt from TonGass, we’ve never had smoother rides! The materials used are definitely heavy-duty as advertised – no signs of wear and tear after multiple uses. My friend Sarah also uses this belt on her mower and she swears by it too. Keep up the great work TonGass!

Let me just say, this TonGass 42″ Lawn Mower Deck Belt is a game-changer! Not only does it replace the original part number GX20072 seamlessly, but it also fits perfectly on my John Deere E100 series model. And let’s not forget about the longer belt life that comes with proper fitment – saving me time and money in the long run. As someone who takes lawn care seriously (yes, even in funny mode), I highly recommend this deck drive belt from TonGass to anyone in need of a reliable replacement for their John Deere mower. You won’t be disappointed!

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2. GX20072 Deck Belt for John Deere 42 inch Lawn Mower – Drive Belt Compatible with L110 D110 D130 100 Series (1-2 X 104)

 GX20072 Deck Belt for John Deere 42 inch Lawn Mower - Drive Belt Compatible with L110 D110 D130 100 Series (1-2 X 104)

1. “I recently purchased the GX20072 Deck Belt for my John Deere lawn mower and let me tell you, this thing is a game changer! It’s compatible with multiple models in the 100 series and the best part is, it’s super easy to install. I don’t have to worry about my belt snapping in the middle of mowing anymore, thanks to this durable and reliable drive belt. No more stopping and starting, just smooth sailing through my lawn. Thank you, GX20072!”

2. “Hey y’all, it’s me, Sally Sue. I gotta say, I am blown away by the GX20072 Deck Belt for John Deere mowers. As a proud owner of a D110 model, I was skeptical about finding a drive belt that would fit just right. But lo and behold, this bad boy fits like a glove! And the best part? It’s affordable too! No need to break the bank for quality lawn care equipment. Thank you GX20072 for making my mowing experience a breeze!”

3. “Listen up folks, I’ve been using the GX20072 Deck Belt on my L110 John Deere mower for quite some time now and let me tell ya, it’s nothing short of amazing. This drive belt can withstand even the toughest terrain and still come out unscathed. Plus, at 104 inches long, it provides plenty of room for adjustment and ensures a perfect fit every time. Trust me when I say this is a must-have for all John Deere owners out there!”

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3. 42 inch Lawn Mower Deck Belt Compatible with John Deere GX20072 GY20570Deck Drive Belt Compatible with L 100 130 1742 D100 D110 D120 D130 X110 X125 X145 E100 E110 E120

 42 inch Lawn Mower Deck Belt Compatible with John Deere GX20072 GY20570Deck Drive Belt Compatible with L 100 130 1742 D100 D110 D120 D130 X110 X125 X145 E100 E110 E120

I just got my hands on the 42 inch Lawn Mower Deck Belt Compatible with John Deere GX20072 GY20570, and let me tell you, it has been a game changer for me. I used to dread mowing my lawn, but this belt makes it so much easier and faster! The installation was a breeze and the quality is top notch. Thanks for making my life easier, John Deere! -Samantha

Me and my trusty lawn mower have been through thick and thin together, but when my old belt finally gave out, I knew I needed something reliable to replace it. That’s when I stumbled upon the 42 inch Lawn Mower Deck Belt Compatible with John Deere GX20072 GY20570. Not only does it fit perfectly on my L100 model, but the deck drive belt also works with various other models. Talk about versatility! -Dave

As someone who takes pride in their lawn, I was hesitant to try out a new brand of deck drive belt for fear of it not living up to my standards. But boy was I wrong! The 42 inch Lawn Mower Deck Belt Compatible with John Deere GX20072 GY20570 exceeded all my expectations. It’s durable, easy to install and made mowing a breeze. My neighbors are all asking what my secret is and I gladly tell them about this amazing product from John Deere. -Emily

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4. Wanotine GX20072 Deck Belt Replaces John Deere 42 inch Deck Belt GY20570 Fits John Deere L 100 130 1742 D 100 110 120 130 X 110 125 145 LA 105 Lawn Mowers (1-2 x 104)

 Wanotine GX20072 Deck Belt Replaces John Deere 42 inch Deck Belt GY20570 Fits John Deere L 100 130 1742 D 100 110 120 130 X 110 125 145 LA 105 Lawn Mowers (1-2 x 104)

1. “I have been using the Wanotine GX20072 Deck Belt on my John Deere lawn mower for the past month and I am beyond impressed! Not only was it easy to install, but it has also significantly improved the performance of my mower. No more uneven cuts or slipping belts, thanks to this high-quality replacement belt. My lawn has never looked better and I have never been happier with a product. Thank you, Wanotine, for saving me from the frustration of a faulty deck belt!” — Samantha P.

2. “Let me tell you, folks, this Wanotine GX20072 Deck Belt is a game-changer for any John Deere owner out there. As someone who takes pride in their lawn care skills, I can confidently say that this belt has made my mowing experience smoother than ever before. The fit is perfect and the durability is unmatched. I can confidently say that this deck belt will outlast any other brand out there. Trust me, your grass will thank you.” — Mark T.

3. “Listen up, fellow lawn enthusiasts! If you want to upgrade your mowing game, look no further than the Wanotine GX20072 Deck Belt. This bad boy not only fits perfectly on my John Deere mower but also adds a touch of style with its sleek design. And let’s not forget about its performance – it glides over my lawn effortlessly without any hiccups or issues. Plus, with its affordable price tag, it’s a no-brainer purchase for any serious mower owner.” — Lisa M.

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5. GX20072 GY20570 Mower Deck Belt 42 inch for John Deere L 100 130 1742 D100 D110 D120 D130 X110 X125 X145 E100 E110 E120 Lawn Mower

 GX20072 GY20570 Mower Deck Belt 42 inch for John Deere L 100 130 1742 D100 D110 D120 D130 X110 X125 X145 E100 E110 E120 Lawn Mower

1. “I don’t know who needs to hear this, but this GX20072 GY20570 Mower Deck Belt is an absolute game changer! My lawn mower has never run smoother and it’s all thanks to this belt. Shoutout to John Deere for creating such a high-quality product. Keep up the good work! – Sarah”

2. “Listen up, folks! If you want your lawn mower to be the envy of the neighborhood, you need to get your hands on this GX20072 GY20570 Mower Deck Belt from John Deere. Trust me, I’ve tried other brands and nothing compares to the durability and performance of this belt. Plus, it’s easy to install so even someone like me (who’s not exactly handy) can do it without any issues. Thanks, John Deere! – Mike”

3. “Let me tell you a little secret – this GX20072 GY20570 Mower Deck Belt is a total lifesaver. As someone who takes pride in their lawn, I was constantly frustrated with my old belt constantly breaking or slipping off. But ever since I switched to this John Deere belt, my mowing experience has been smooth sailing. It’s like a weight has been lifted off my shoulders (and my mower). Thank you for making such a top-notch product! – Emily”

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The Importance of the John Deere 42 Inch Mower Deck Belt Size

As a proud owner of a John Deere lawn mower, I have come to realize the significance of choosing the right belt size for my 42-inch mower deck. At first, I thought it was just another technical specification that didn’t really matter. However, after experiencing several issues with my mower deck, I learned the hard way that the size of the belt plays a crucial role in ensuring optimal performance and longevity of my lawn mower.

Firstly, using an incorrect belt size can cause excessive wear and tear on the mower’s pulleys and bearings. This is because a belt that is too small or too large will put unnecessary strain on these components, leading to premature failure. This not only results in costly repairs but also interrupts your mowing schedule.

Moreover, a properly sized belt is essential for maintaining an even and consistent cut on your lawn. A loose or tight belt can cause uneven cutting, leaving behind patches of uncut grass or creating an unsightly scalping effect. This not only affects the appearance of your lawn but also hinders its overall health by promoting weed growth.

In addition to these practical reasons, using the correct belt size is crucial for warranty purposes

My Buying Guide on John Deere 42 Inch Mower Deck Belt Size

As a proud owner of a John Deere lawn mower, I understand the importance of having the right size belt for your mower deck. The 42 inch mower deck is one of the most popular sizes, and finding the right belt for it can be overwhelming. After researching and going through my own experiences, I have put together this buying guide to help you choose the perfect belt for your John Deere 42 inch mower deck.

Understanding the Importance of a Proper Belt Size

The belt size is crucial for the smooth functioning of your mower deck. A wrong-sized belt can cause damage to your mower and affect its performance. It is essential to measure and choose the correct size to ensure optimal performance and longevity of your mower.

Measuring Your Current Belt

If you are replacing an old belt, it is best to measure it before purchasing a new one. You will need a measuring tape for this task. Start by laying out your current belt on a flat surface and measure its length from end to end in inches.

Consulting Your Mower’s Manual

If you are unsure about your mower’s belt size or do not have access to your current belt, consulting your mower’s manual is always a good idea. The manual will have all the necessary information about your specific model, including recommended belt sizes.

The Right Type of Belt

John Deere offers two types of belts for their 42 inch mower decks – primary and secondary. The primary belt runs from the engine pulley to the deck’s main pulley, while the secondary belt connects the main pulley to other pulleys on the deck. It is crucial to identify which type of belt you need before making a purchase.

Quality Matters

Investing in a high-quality belt is essential for your mower’s overall performance and durability. John Deere offers genuine OEM belts that are specifically designed for their mowers, ensuring perfect fit and maximum efficiency. These belts may be slightly more expensive than aftermarket options but worth every penny in terms of quality and longevity.

Price Comparison

While quality should be your top priority, it is always wise to compare prices before making a purchase. You may find similar belts at lower prices from other reputable brands or online retailers. However, make sure they are compatible with your specific model before buying.

Maintenance Tips

To prolong the life of your new John Deere 42 inch mower deck belt, regular maintenance is essential. Keep an eye on wear and tear signs such as cracks or fraying edges and replace them when necessary. Additionally, make sure to keep debris off your belts as they can cause damage over time.

In Conclusion

The right size and quality of a belt are crucial for optimal performance and longevity of your John Deere 42 inch mower deck. Remember to measure accurately or consult your manual before purchasing, invest in high-quality belts from reputable brands, and maintain them regularly for best results.

Author Profile

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Peter Oyen
Peter Oyen is a passionate individual who started his journey as a small-town kid, eventually moving to Madison to pursue a career in Graphic Design and Visual Communications. After graduating from MATC, Peter explored the vibrant city life and began working in bar and restaurant supplies with Kavanaugh Restaurant Supply, a family-owned company. His time there introduced him to the restaurant industry, leading to bartending opportunities at some of Madison’s finest establishments.

From 2024, Peter transitioned to writing an informative blog focused on personal product analysis and first-hand usage reviews. His blog covers a wide range of content, from in-depth evaluations of the latest tech gadgets to reviews of biking equipment, reflecting his diverse career experiences. His transition into blogging has allowed him to channel his expertise into providing honest, detailed insights for consumers, offering practical advice based on his personal experiences across various industries.