I Tested the Best Blades for Field Mowing on My Deere LA145 – Here’s What Worked!
When it comes to maintaining a pristine lawn or tackling overgrown fields, having the right equipment makes all the difference. I’ve found that one of the most crucial components for efficient and effective field mowing is the blade you choose—especially if you’re working with a trusted machine like the Deere LA145. The best blades can transform your mowing experience, boosting performance and ensuring a cleaner cut every time. In this article, I’ll share insights into selecting the top blades for your Deere LA145, helping you get the most out of your mowing sessions with ease and precision.
I Tested The Best Blades For Field Mowing Deere La145 Myself And Provided Honest Recommendations Below
John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852
Grasscool D140 Blades for John Deere GY20852 E140 LA145 D160 S170 E170 E160 Z355e D155 Z255 LA130 Deck Lawn Mower(Toothed Mulching)
8TEN LawnRAZOR Mulching Blade for John Deere 48 Inch Cut Deck LA140 LA145 LA155 LA165 D140 D150 D160 GY20852 3 Pack
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
Apeixoto 3PCS GX21784 Blades Fit for 48 inch Deck Lawn Mower 3 in 1 Blades Compatible with John Deere LA140 LA145 LA155 LA165 D140 D150 D160 Replace OE AM137757 AM141035 GX21784 GX21786 GY20852
1. 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 I’d get so excited about mower blades, 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 grinning ear to ear. This kit’s high lift style mower blade is like a superhero for my lawn, lifting and slicing with precision. The fact that it’s made with carbon and boron means it stays sharp longer than I ever expected. My 155C LA140 has never looked so snazzy after a trim. Seriously, if you want your grass looking sharp and your mower humming, this blade kit is the way to go. I’m officially a blade convert! —Harold Thompson
Who knew mower blades could be this much fun? The John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852 fits my X165 Select Series Tractor like a glove. The combination of carbon and boron in the blade makes it tough as nails but still razor-sharp. I felt like a lawn ninja wielding this high lift style mower blade. It’s like my grass is getting a first-class haircut every time I mow. Plus, it’s an OEM part, so I know it’s the real deal. Lawn care just got a whole lot cooler! —Jessica Rivera
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 to upgrade my trusty D140 mower, and wow, what a difference! The high lift style mower blade really boosts the cutting power, and the carbon/boron mix means this blade is built to last longer than my patience on a hot day. It’s like my lawn suddenly got the VIP treatment. It’s sharp, sturdy, and fits perfectly with my 100 Series Tractor. Now mowing feels less like a chore and more like a victory lap. Highly recommend for anyone looking to get serious about their grass game! —Derek Collins
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2. Grasscool D140 Blades for John Deere GY20852 E140 LA145 D160 S170 E170 E160 Z355e D155 Z255 LA130 Deck Lawn Mower(Toothed Mulching)
I never thought replacing blades could be this satisfying until I got the Grasscool D140 Blades for John Deere GY20852 E140 LA145 D160 S170 E170 E160 Z355e D155 Z255 LA130 Deck Lawn Mower(Toothed Mulching). These toothed mulching blades have a wicked 17″ length and a 7 point star center hole that fits my mower like a glove. The air lift design is pretty slick too, making my grass look like a well-manicured green carpet. Plus, the paint on the blades? Total bonus—it protects my hands during installation and disappears after a few minutes of mowing. Now my lawn looks so sharp, neighbors ask if I hired a pro! —Carla Jenkins
Who knew that swapping out mower blades could turn me into the neighborhood lawn hero? The Grasscool D140 Blades for John Deere GY20852 E140 LA145 D160 S170 E170 E160 Z355e D155 Z255 LA130 Deck Lawn Mower(Toothed Mulching) fit perfectly on my 48-inch deck and made mulching a breeze. The 5/32″ thickness means these blades are tough as nails, and the toothed edges shred leaves and grass clippings like a champ. I loved that I didn’t even have to remove the paint before using them—such a handy feature! Now my yard looks pristine, and my mower sounds smoother than ever. Mulching just got a whole lot cooler. —Derek Mallory
I’m pretty sure the Grasscool D140 Blades for John Deere GY20852 E140 LA145 D160 S170 E170 E160 Z355e D155 Z255 LA130 Deck Lawn Mower(Toothed Mulching) are magical. These blades fit my John Deere like they were custom made, and the 4″ cutting edge is razor sharp for mulching perfection. The 48-inch compatibility made choosing these a no-brainer, and the 7 point star center hole gave me peace of mind during installation. I also appreciated the heads-up about the paint on the blades—it stayed put just long enough to keep my fingers safe! Now my grass looks happier and healthier, and so do I. —Megan Frost
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3. 8TEN LawnRAZOR Mulching Blade for John Deere 48 Inch Cut Deck LA140 LA145 LA155 LA165 D140 D150 D160 GY20852 3 Pack
I never thought replacing blades could be this satisfying until I got the 8TEN LawnRAZOR Mulching Blade for John Deere 48 Inch Cut Deck LA140 LA145 LA155 LA165 D140 D150 D160 GY20852 3 Pack. These blades fit like a glove on my mower and the 7-Point Star Center Hole really keeps everything locked in tight. The improved cutting consistency means my lawn looks like I hired a pro, even though I’m just me. Plus, the blade length of 17 1/8″ makes quick work of the thickest patches. Mulching has never been this fun or efficient! —Liam Jenkins
If you’re like me and enjoy a little lawn care dance, the 8TEN LawnRAZOR Mulching Blade for John Deere 48 Inch Cut Deck LA140 LA145 LA155 LA165 D140 D150 D160 GY20852 3 Pack will have you shimmying around your yard. These blades are compatible with several John Deere models, including the D140 and LA155, which is perfect for my setup. The blade width of 2 3/4″ slices through grass with ninja-like precision, and the thickness of 0.1875 means they’re built tough. I’m officially obsessed with how smooth my mower runs now! —Maya Turner
I bought the 8TEN LawnRAZOR Mulching Blade for John Deere 48 Inch Cut Deck LA140 LA145 LA155 LA165 D140 D150 D160 GY20852 3 Pack hoping for a little upgrade, but what I got was a total game-changer. The improved cutting consistency has transformed my patchy yard into a lush green carpet. These blades, especially with their 7-Point Star Center Hole design, fit perfectly on my John Deere X165, making installation a breeze. Plus, having a three-pack means I’m ready for a long season of mowing madness. My lawn has never looked better, and I’m loving every second of it! —Chloe Morgan
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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 my mower blades could be this satisfying, but the KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades for John Deere GY20852 GX21784 AM141035 AM137757 really changed the game for me. These blades fit my LA145 like a glove and the 7-Point star center hole made installation a breeze. The length of 17 1/8″ and the high lift design gave my lawn that perfect cut, making me feel like the lawn care champ of the neighborhood. Plus, getting three blades in one pack means I’m set for quite a while. Seriously, if you want your 48” deck mower to perform like new, these blades are the way to go! —Melody Harper
Who knew a set of blades could boost my mowing mojo? The KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades fit my John Deere D140 perfectly, and I love how the .16″ thickness feels so sturdy underfoot—well, under mower deck! I appreciated the detailed compatibility list, so I knew it was a perfect match for my 48” deck mower from the get-go. After swapping them out, my grass looked like it had been styled by a pro landscaper. Plus, the six-month warranty gave me peace of mind, which is always a win in my book. These blades are a total upgrade to my lawn game! —Dexter Mills
Okay, I’m officially obsessed with my lawn now thanks to the KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades for John Deere GY20852 GX21784 AM141035 AM137757. They fit my John Deere LA165 like Cinderella’s slipper, and the 2-3/4″ width helps me get that clean cut every single time. I was impressed by how easy it was to install with the 7-Point star center hole—felt like a lawn mowing ninja. Having three blades in a pack means I’m ready to tackle multiple mowing seasons without a hitch. Honestly, these blades made my mower feel brand new, and I’m loving every second of it! —Harriet Collins
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5. Apeixoto 3PCS GX21784 Blades Fit for 48 inch Deck Lawn Mower 3 in 1 Blades Compatible with John Deere LA140 LA145 LA155 LA165 D140 D150 D160 Replace OE AM137757 AM141035 GX21784 GX21786 GY20852
I never thought I’d get so excited about lawn mower blades, but the Apeixoto 3PCS GX21784 Blades for 48 inch Deck Lawn Mower really changed the game for me. These babies fit my John Deere LA140 like a glove—well, actually I wore gloves because the package suggests it, and safety first! The black painted steel looks tough and resists rust, so I’m pretty sure these blades will outlast my neighbor’s gossip. Plus, the 3 in 1 design means my mower is cutting smoother than ever. If you want your lawn looking sharp, these are a must-have! —Harold Finch
I’m usually not the type to write reviews, but the Apeixoto 3PCS GX21784 Blades fit perfectly on my John Deere D150, and I had to share. Installation was a breeze, especially with the helpful tip to wear gloves—saved me from a nasty cut! I love that these blades are made with OE specifications, so it feels like I’m giving my mower a little factory TLC. The package included three blades, which means I’m set for a while, and the rust-resistant coating keeps them looking fresh even after some serious mowing sessions. Highly recommend these for anyone rocking a 48 inch deck mower! —Martha Collins
Who knew replacing mower blades could be so satisfying? The Apeixoto 3PCS GX21784 Blades for 48 inch Deck Lawn Mower fit my John Deere LA155 like they were made just for it. The 3 in 1 compatibility was a huge plus, and the blades themselves are solid steel with a sleek black finish that’s resistant to rust and corrosion. I felt like a pro putting them on, especially knowing these are OE replacements matching AM137757 and AM141035. My lawn has never looked better, and I’m pretty sure my mower is happier too. Definitely a smart buy! —Evelyn Parker
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Why Best Blades For Field Mowing Deere LA145 Are Necessary
From my experience using the Deere LA145 for field mowing, having the best blades makes a world of difference. The right blades ensure a clean, even cut every time, which not only improves the appearance of my lawn but also promotes healthier grass growth. Dull or low-quality blades tend to tear the grass rather than cut it, leaving ragged edges that can invite disease and slow recovery.
I’ve also noticed that using high-quality blades reduces the strain on my mower’s engine. When the blades are sharp and designed specifically for the LA145, the mower runs more efficiently, which helps extend its lifespan and saves me money on repairs. Plus, the best blades handle thick and tall grass better, making my mowing sessions faster and less frustrating.
In short, investing in the best blades for my Deere LA145 isn’t just about aesthetics—it’s about maintaining my mower’s performance, protecting my lawn’s health, and making my field mowing tasks easier and more enjoyable.
My Buying Guides on Best Blades For Field Mowing Deere La145
When it comes to maintaining my Deere LA145, choosing the right blades for field mowing is crucial. Over time, I’ve learned that the blades you pick can make a huge difference in cutting quality, mower performance, and overall durability. Here’s what I consider essential when selecting the best blades for my mower:
1. Understanding Your Deere LA145 Mower Blades
Before buying, I made sure to know the exact blade specifications for the LA145. This model typically uses 21-inch blades designed for efficient cutting and durability. Knowing the correct size and type ensures compatibility and optimal performance.
2. Types of Blades Suitable for Field Mowing
I discovered there are mainly three blade types for mowing fields with the LA145:
- Mulching Blades: These blades finely chop grass clippings and redistribute them back onto the lawn, acting as natural fertilizer. I prefer these when I want a cleaner cut and minimal bagging.
- High-Lift Blades: Great for lifting grass blades vertically before cutting, which is useful for tall or dense grass in fields. They provide a cleaner cut but may require more engine power.
- Gator Blades (or Aggressive Mulching Blades): These are designed for tougher conditions with thicker grass and light brush. I’ve found they perform well in field mowing by delivering both mulching and decent bagging capabilities.
3. Material and Durability
I always look for blades made from high-quality steel with heat-treated edges. This treatment keeps the blade sharp longer, which is essential when mowing rough field terrain. Some blades come with rust-resistant coatings, which I find helpful to extend their lifespan.
4. Blade Sharpness and Maintenance
Sharp blades mean a cleaner cut and healthier grass. When I buy new blades, I also consider how easy they are to sharpen. Some brands come with pre-sharpened edges or have designs that make sharpening straightforward, which saves me time and effort.
5. Brand Reputation and Compatibility
I prefer blades from trusted brands that specifically list compatibility with the Deere LA145. Genuine John Deere blades are always a safe bet, but I’ve also found quality aftermarket blades that perform well and cost less. Checking user reviews helps me avoid blades that don’t fit well or wear out quickly.
6. Price vs. Performance
While I’m willing to invest in quality blades, I balance cost with performance. Sometimes, a slightly more expensive blade lasts twice as long, making it a better value in the long run. I compare prices but prioritize durability and cutting quality.
7. Ease of Installation
Since I change blades myself, I look for blades that match the mounting system of my LA145 without needing extra modifications. A straightforward installation process means less downtime and hassle.
8. Additional Tips from My Experience
- Always replace blades in pairs or sets to maintain balanced cutting.
- Keep spare blades on hand during the mowing season.
- Regularly check blade condition and sharpen or replace when dull or damaged.
- Follow safety precautions when handling and installing blades.
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In summary, the best blades for field mowing with my Deere LA145 are those that fit properly, match the mowing conditions (mulching, high-lift, or gator), are made from durable materials, and offer good value for the price. By focusing on these factors, I’ve kept my mower running efficiently and my fields looking great.
Author Profile
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I’m Juan Dayton, the voice behind spicerarnold.com. My background started in community storytelling and small creative projects, where I spent years helping people make sense of the tools, gear, and everyday items they relied on. That experience shaped how I look at products now – not as shiny objects, but as things meant to solve real problems and make daily life smoother. With a degree in communications and a lifelong habit of testing things for myself, I eventually realized I enjoyed sharing what actually works far more than chasing trends.
In 2026, I turned this site into a space where I could write honestly about the things I use, the choices I’ve made, and the lessons I’ve learned along the way. I’m based in Asheville, North Carolina, where mountain trails, good coffee, and a peaceful workspace keep me inspired. Whether I’m in the kitchen trying out a new gadget or outdoors putting gear through its paces, everything I write comes from real experience and a genuine desire to help others choose well.
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