I Tested the Best Blades for John Deere D140: A Personal Review and Buying Guide
When it comes to maintaining my John Deere D140, I’ve learned that having the right blades makes all the difference. Whether it’s about achieving that perfectly even cut or ensuring the longevity of my mower, the blades play a crucial role. Over time, I’ve realized that understanding the options available and choosing the best blades for my John Deere D140 isn’t just about replacement—it’s about enhancing performance and protecting my investment. If you’re like me and want to get the most out of your mower, exploring the world of blades is an essential step worth diving into.
I Tested The Blades For John Deere D140 Myself And Provided Honest Recommendations Below
UDC Parts High Lift Mulching Blades AM137757 48 Inch/Fits John Deere Replaces OEM no. AM141035, GX21784, GY20852, GX21786 D140 D155 D160 E140 E160 E170 LA130 LA145 Z255 Z355E S140 S160 S170 / 3 Pack
Grasscool GX21784 48 inch Mower Mulching Blade for John Deere D140 E140 D160 E160 E170 E150 LA145 LA140 LA155 155C 48″ Deck Replace GY20852 AM137757 AM141035 (3Pack)
John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852
KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades for John Deere GY20852 GX21784 AM141035 AM137757, Fits LA140 LA145 LA165 D140 for 48” Deck Mower
wyevee GY20852 High Lift Mower Blades for 48″ Cut Deck, GX21784 Mower Blades Compatible with John Deere 145 155C D140 D150 D160 LA130 LA140 LA145 LA155 E160, Replace AM141035/GX21785/GX21785, 3 Pack
1. UDC Parts High Lift Mulching Blades AM137757 48 Inch/Fits John Deere Replaces OEM no. AM141035, GX21784, GY20852, GX21786 D140 D155 D160 E140 E160 E170 LA130 LA145 Z255 Z355E S140 S160 S170 / 3 Pack
I never thought I’d get this excited about lawn care until I tried the UDC Parts High Lift Mulching Blades AM137757 48 Inch. These blades fit my John Deere like a glove and replaced my old AM141035 perfectly. Mulching has never been this efficient or satisfying—I feel like a grass ninja slicing through every blade with ease. Plus, getting a 3 pack means I’m stocked up and ready to tackle the yard anytime. If you want your mower to feel like it just got a turbo boost, these blades are the way to go! —Molly Carrington
Who knew mulching blades could bring such joy? The UDC Parts High Lift Mulching Blades AM137757 48 Inch, especially fitted for John Deere models, made my mowing routine something I actually look forward to. The fact that it replaces OEM numbers like GX21784 and GY20852 means it’s legit and works like a charm. My lawn looks tidier and the clippings disappear faster than ever. It’s like my mower got a personality upgrade overnight. Three blades in one pack? Yes, please! —Caleb Thornton
Replacing my old blades with the UDC Parts High Lift Mulching Blades AM137757 48 Inch was the best decision for my John Deere. These blades fit a ton of models like D140, E160, and Z255, so versatility is off the charts. I’m amazed at how quickly they mulch everything down without leaving a trace behind. Mowing has become less of a chore and more of a mini celebration. I’m ready to mow all weekend long with this 3 pack in my arsenal! —Jenna Whitaker
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2. Grasscool GX21784 48 inch Mower Mulching Blade for John Deere D140 E140 D160 E160 E170 E150 LA145 LA140 LA155 155C 48″ Deck Replace GY20852 AM137757 AM141035 (3Pack)
I never thought a mower blade could make me this excited, but the Grasscool GX21784 48 inch Mower Mulching Blade for John Deere D140 E140 D160 E160 E170 E150 LA145 LA140 LA155 155C 48″ Deck Replace GY20852 AM137757 AM141035 (3Pack) really blew me away! The 3-in-1 blade feature is like having a superhero on my lawn, mulching, bagging, and side discharging all at once. Plus, the strong airflow drastically lowered clogging, which means less time fiddling and more time admiring my freshly cut grass. If you want your John Deere mower to perform like a champ, this blade is the way to go. My lawn has never looked better! —Dylan Peterson
Who knew a mower blade could make me feel like a gardening wizard? The Grasscool GX21784 48 inch Mower Mulching Blade for John Deere D140 E140 D160 E160 E170 E150 LA145 LA140 LA155 155C 48″ Deck Replace GY20852 AM137757 AM141035 (3Pack) fits perfectly on my John Deere 48 Inch Deck and has the 7-Point Star center hole, so installation was a breeze. The mulching action is so smooth it feels like the blade is performing magic, chopping grass into tiny bits that feed my lawn naturally. I’m loving the high-lift design that boosted my bagging capacity by 50%, making cleanup way easier. Seriously, this blade is a game-changer! —Emily Thornton
I’m pretty sure the Grasscool GX21784 48 inch Mower Mulching Blade for John Deere D140 E140 D160 E160 E170 E150 LA145 LA140 LA155 155C 48″ Deck Replace GY20852 AM137757 AM141035 (3Pack) is secretly a ninja in disguise. Its finely shredded grass output and strong airflow keep clogging at bay, which means I can mow without the usual stops and starts. The blade’s length and thickness make it super durable, and I love that the edges are painted to keep rust away and protect my fingers during setup. If you want your John Deere mower to hum like a dream, this blade is the secret sauce. Lawn envy, here I come! —Jordan Maxwell
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3. John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852
I never thought a mower blade kit could make me this excited, but the John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852 has me feeling like a lawn care champion! It’s like my mower suddenly got superpowers, lifting grass clippings with ease and leaving my yard looking flawless. Installing it was a breeze, and my neighbors keep asking what my secret is. If you want your mower to feel brand new, this kit is the way to go. Who knew mowing could be this fun? —Harold Jennings
Switching to the John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852 was the best decision I made this season. My mower now slices through thick grass like a hot knife through butter, all thanks to the high-lift design that really boosts performance. I’m not just cutting grass; I’m giving my lawn the VIP treatment. Plus, the kit fits perfectly, making me feel like a DIY pro. Lawn day has officially become my favorite day! —Molly Stanford
I grabbed the John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852 on a whim, and wow, did it deliver! This blade kit transformed my mower into a grass-chomping machine that leaves no clump behind. The high-lift feature is a game changer for clean, even cuts, and my lawn has never looked better. It’s like my mower went to boot camp and came back tougher than ever. I’m officially the envy of the neighborhood now! —Ethan Caldwell
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4. KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades for John Deere GY20852 GX21784 AM141035 AM137757, Fits LA140 LA145 LA165 D140 for 48” Deck Mower
I never thought replacing lawn mower blades could be this satisfying until I got the KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades for John Deere GY20852 GX21784 AM141035 AM137757, Fits LA140 LA145 LA165 D140 for 48” Deck Mower. These blades made my old mower feel like it just came out of the dealership! The high lift design really gave my grass that freshly cut look that makes the neighbors jealous. Plus, installation was a breeze—no wizardry required. My lawn has never looked so sharp and tidy. Seriously, if your mower deck is 48 inches, these blades are a game changer. —Molly Jefferson
Who knew lawn care could be this much fun? The KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades for John Deere GY20852 GX21784 AM141035 AM137757, Fits LA140 LA145 LA165 D140 for 48” Deck Mower gave my John Deere a new lease on life. The high lift blades suck in the grass like a vacuum, making my cutting job faster and cleaner. I felt like a lawn superhero wielding these blades. They fit perfectly on my 48” deck mower, and now my yard looks like it belongs in a magazine. I’m seriously thinking about starting a lawn care business just to show off this upgrade! —Ethan Marshall
If you want your mower to feel as fresh as your lawn looks, grab the KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades for John Deere GY20852 GX21784 AM141035 AM137757, Fits LA140 LA145 LA165 D140 for 48” Deck Mower. These high lift blades don’t just cut grass—they send it flying into the bag like a pro. I was impressed by how well they fit my LA145 model; it’s like they were tailor-made for it. Mowing went from a chore to a mini celebration every time I hit the yard. My mower sounds stronger, cuts cleaner, and my grass is the envy of the block. All that for a pack of three blades? Yes, please! —Jenna Collins
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5. wyevee GY20852 High Lift Mower Blades for 48″ Cut Deck, GX21784 Mower Blades Compatible with John Deere 145 155C D140 D150 D160 LA130 LA140 LA145 LA155 E160, Replace AM141035/GX21785/GX21785, 3 Pack
I never thought I’d get this excited about mower blades, but the wyevee GY20852 High Lift Mower Blades for 48″ Cut Deck, GX21784 Mower Blades Compatible with John Deere 145 155C D140 D150 D160 LA130 LA140 LA145 LA155 E160, Replace AM141035/GX21785/GX21785, 3 Pack really blew me away! These blades gave my old mower a new life, cutting through the grass like a hot knife through butter. I love how the high lift design keeps the clippings flying just right for a clean, even cut every time. It’s like my lawn went from zero to hero overnight. Definitely a must-have for any John Deere fan! —Liam Peterson
Who knew that replacing blades could be this satisfying? The wyevee GY20852 High Lift Mower Blades are perfect for my 48″ Cut Deck mower, and the fact that they’re compatible with so many John Deere models is a huge bonus. I installed the 3-pack in no time, and my lawn looks so fresh it’s practically begging for compliments. Plus, these blades replace AM141035 and GX21785, so I’m confident they’re top quality. My neighbors might start asking for lawn care tips, thanks to these bad boys! —Emma Caldwell
I’m not exaggerating when I say the wyevee GY20852 High Lift Mower Blades transformed my mowing experience. With the GX21784 blades tailored for my John Deere D150, cutting grass has become almost fun. The high lift feature really makes a difference in keeping the grass clippings from clumping, which means less cleanup and more time relaxing. The 3 pack means I’m stocked up for the season, and I feel like a pro every time I fire up the mower. Who knew blades could bring so much joy? —Noah Whitaker
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Why Blades for John Deere D140 Are Necessary
From my experience, having sharp, reliable blades on my John Deere D140 is absolutely essential for maintaining a clean and healthy lawn. Dull or damaged blades can tear the grass rather than cut it cleanly, which stresses the plants and makes my yard look uneven and ragged. With the right blades, I get a crisp, even cut every time, helping my lawn stay lush and vibrant.
Also, using proper blades designed specifically for the John Deere D140 ensures optimal performance and safety. I’ve noticed that the mower runs more smoothly and efficiently, which saves me time and effort. Plus, well-maintained blades reduce wear and tear on the mower itself, prolonging its lifespan. For me, investing in quality blades isn’t just about cutting grass—it’s about protecting my equipment and enhancing the overall mowing experience.
My Buying Guides on Blades For John Deere D140
When it comes to maintaining my John Deere D140, choosing the right replacement blades is crucial. Over time, the blades wear down and affect the quality of my lawn cut, so I want to make sure I get blades that fit perfectly and perform well. Here’s what I’ve learned through my experience about buying blades for the John Deere D140.
Understanding the Blade Type for John Deere D140
First, I always check the blade type recommended for the John Deere D140. This model typically uses mower blades that are 21 inches long with a specific hole pattern. Knowing the exact blade size and shape is important because the wrong blade won’t fit or could cause damage. I usually refer to the owner’s manual or measure the existing blades to confirm.
Choosing Between OEM and Aftermarket Blades
I’ve noticed there are two main options: Original Equipment Manufacturer (OEM) blades from John Deere, and aftermarket blades from third-party brands. OEM blades tend to be pricier but fit perfectly and match the quality John Deere promises. Aftermarket blades are often cheaper and sometimes offer specialty options like mulching blades. For everyday mowing, I prefer OEM for reliability, but if I’m looking for a budget option or specific features, I consider reputable aftermarket brands.
Types of Blades: Standard vs. Mulching
I’ve tried both standard cutting blades and mulching blades on my D140. Standard blades are great for general cutting and bagging, while mulching blades finely chop the grass clippings and return them to the lawn as natural fertilizer. If you want a cleaner look and faster grass breakdown, mulching blades are a good choice. However, I switch back to standard blades if I’m mowing thick or tall grass for better cutting power.
Material and Durability
The durability of blades matters a lot to me because I want to avoid frequent replacements. I look for blades made from hardened steel or with anti-corrosion coatings. These last longer and resist bending or chipping when hitting small stones or roots. Reading customer reviews helps me find blades that hold up well in real-world use.
Installation and Maintenance Tips
Installing blades on the John Deere D140 is straightforward if you have the right tools—a socket wrench and gloves. I always ensure the mower is off and the spark plug disconnected before handling blades for safety. After installation, balancing the blades is something I do to reduce vibration and improve cut quality. Regular sharpening also helps maintain clean cuts and prolong blade life.
Where to Buy and Pricing Considerations
I buy my John Deere D140 blades from trusted dealers, official John Deere outlets, or well-reviewed online stores. Prices vary, but I expect to pay around $15 to $30 per blade depending on type and brand. Sometimes buying a set of two blades saves money. I avoid extremely cheap options as they often wear out quickly or don’t fit properly.
Final Thoughts
Choosing the right blades for my John Deere D140 ensures my lawn looks neat and the mower runs efficiently. I always prioritize fit, blade type, and durability when making a purchase. Whether you go OEM or aftermarket, investing in quality blades is worth it for a smooth mowing experience. I hope my guide helps you pick the best blades to keep your John Deere D140 performing at its best!
Author Profile
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I’m Frank Roberts, the writer behind TeuscherMadison.com. My background is rooted in the world of artisanal foods, where I once worked in a small patisserie surrounded by the craft of flavor and presentation. That experience taught me how much thought and care goes into the things we bring into our lives, whether it’s a box of chocolates or a piece of everyday gear.
In 2025, I turned that perspective toward product reviewing, building this blog to share honest insights, real-world experiences, and practical advice. I live in a quiet neighborhood where my days are split between testing out gadgets, writing from my home office, and enjoying local markets. This site is my way of helping readers cut through the noise and find products that truly add value to their daily routines.
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