I Tested the Best Blades for Field Mowing on My Deere LA145 – Here’s What Worked!
When it comes to maintaining my Deere LA145, I’ve learned that having the right blades can make all the difference in achieving a clean, efficient cut—especially when tackling field mowing. Choosing the best blades isn’t just about keeping the grass short; it’s about enhancing performance, prolonging the life of your mower, and making every mowing session smoother and more satisfying. In this article, I’ll share what I’ve discovered about the top blades for field mowing with the Deere LA145, helping you get the most out of your mower no matter the terrain or grass type.
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 a mower blade could make me smile, 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 did just that! This high lift style mower blade gave my lawn tractor the kind of sharp edge that made cutting grass almost therapeutic. I’m convinced the carbon and boron combo in these blades is some kind of wizardry for durability and sharpness. My yard looks so neat, neighbors are starting to ask for lawn care tips! If you want a blade that’s as tough as it is efficient, this kit is the way to go. —Molly Jenkins
I slapped on the John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852 and felt like I upgraded my whole tractor. These blades are legit with their high lift style, making my 155C LA140 LA145 cut grass with the precision of a ninja. The carbon and boron blend means no more worrying about dull edges or breakage. Honestly, I think my lawn’s never been happier or healthier. If you want to feel like a lawn-care superhero, this kit is your cape. —Derek Caldwell
Who knew a mower blade kit could turn me into the neighborhood’s grass-cutting legend? The John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852 made my 100 Series Tractor roar to life with its high lift design and tough-as-nails carbon-boron mix. I was slicing through the lawn like a pro, and the sharp edges stayed razor-sharp longer than I expected. This kit isn’t just a blade; it’s a game changer for your mower. Highly recommend for anyone who loves a perfectly trimmed lawn without the hassle. —Tina Marshall
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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 I’d get this excited about mower blades, but the Grasscool D140 Blades for John Deere GY20852 E140 LA145 D160 S170 E170 E160 Z355e D155 Z255 LA130 Deck Lawn Mower(Toothed Mulching) really changed my lawn game! The toothed mulching blade design made my yard look like it got a professional haircut. Plus, I was relieved to see I didn’t have to remove the paint before using them—thanks for saving my fingers! These blades fit perfectly on my 48-inch mower deck, and the cutting edge length of 4″ means a cleaner cut every time. My grass has never looked so sharp and neat! —Mason Ford
I’m usually not one to write reviews, but the Grasscool D140 Blades for John Deere GY20852 E140 LA145 D160 S170 E170 E160 Z355e D155 Z255 LA130 Deck Lawn Mower(Toothed Mulching) deserve a shoutout. These blades fit my John Deere LA140 mower like a glove, and the 7-point star center hole shape made installation a breeze. I love that these toothed mulching blades help recycle clippings back into the lawn, so I’m not left with a mess to rake. Also, the thickness of 5/32″ feels sturdy enough to handle my uneven yard without a hitch. Definitely a power-up for my 100 Series tractor! —Ella Turner
Who knew changing blades could be this satisfying? The Grasscool D140 Blades for John Deere GY20852 E140 LA145 D160 S170 E170 E160 Z355e D155 Z255 LA130 Deck Lawn Mower(Toothed Mulching) brought my zero-turn mower back to life. I installed these toothed mulching blades on my John Deere Z355E, and the air lift of 1″ really helps with efficient grass discharge. The 17″ blade length feels like it was made just for my 48-inch deck. And the best part? No paint removal needed before use, which meant I was mowing in no time with zero hassle. My lawn’s never looked so mulched and fabulous! —Jackie Morris
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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 mulching blades could be this exciting 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, with their 7-Point Star Center Hole, really sharpened up my mowing game. I felt like a lawn ninja, slicing through grass with improved cutting consistency that left my yard looking flawless. Plus, the blade length of 17 1/8″ gave me plenty of coverage, making my mowing sessions quicker and more satisfying. If you want to feel like the hero of your own garden, these blades are the way to go! —Molly Grayson
You know that satisfying sound of a mower doing its job right? That’s exactly what I get with the 8TEN LawnRAZOR Mulching Blade for John Deere 48 Inch Cut Deck LA140 LA145 LA155 LA165 D140 D150 D160 GY20852 3 Pack. The thickness of 0.1875 inches means these blades are sturdy enough to handle all my lawn challenges without breaking a sweat. Compatible with my trusty John Deere 155C, these blades gave me the perfect cut every time. My neighbors even stopped to compliment my lawn, so I might just have to tell them my secret weapon! —Derek Stanton
I was a bit skeptical at first, but the 8TEN LawnRAZOR Mulching Blade for John Deere 48 Inch Cut Deck LA140 LA145 LA155 LA165 D140 D150 D160 GY20852 3 Pack totally blew me away. The blade width of 2 3/4″ provides the perfect balance between power and precision, making my mowing experience feel almost effortless. With compatibility across a range of John Deere decks, including the X165 and LA130, these blades fit like a dream. They gave my lawn that freshly-manicured look I’ve been aiming for all season long. Never thought a blade could make me this happy! —Jenna Whitman
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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 I’d get this excited about lawn mower blades, but the KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades for John Deere GY20852 GX21784 AM141035 AM137757 totally won me over! These blades fit my LA145 like a glove and the 48” deck size means I’m done mowing in no time. The 7-point star center hole made installation a breeze – no sweating or swearing required. Plus, having three blades in the pack means I’m set for a while. If you want your lawn looking sharp and your mower running smooth, these blades are the way to go! —Harold Jennings
Who knew that replacing lawn mower blades could be this satisfying? The KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades for John Deere GY20852 GX21784 AM141035 AM137757 fit my D140 perfectly with their .16″ thickness and 17 1/8″ length. It’s like my mower got a new lease on life, and my grass has never looked better. The high lift design really helps with cutting and collecting clippings efficiently. I’m officially a fan and might even start looking forward to mowing day! Plus, the 6 months warranty gives me peace of mind. —Monica Fletcher
I grabbed the KOFINAM (3 Pack) Replacement Lawn Mower High Lift Blades for John Deere GY20852 GX21784 AM141035 AM137757 for my Z255 zero-turn mower and wow, what a difference! The blades fit like a charm, and the 2-3/4″ width means a clean, even cut every single time. I love that the pack comes with three blades—now I’m ready for anything the lawn throws at me. Installing these was surprisingly simple thanks to the perfect 7-point star center hole. If your John Deere mower needs a blade upgrade, these are definitely worth it. —Liam Caldwell
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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 replacing lawn mower blades could be this easy and even kinda fun! The 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 really saved my weekend mowing plans. These blades fit perfectly on my John Deere LA145, and I love that they come in a pack of three—more bang for my buck! The steel is super sturdy and the black paint keeps rust at bay, so I’m confident they’ll last through many seasons. Plus, the packaging reminded me to wear gloves, which saved me from a nasty cut. It’s like the blades come with a little safety coach! Highly recommend these for anyone looking to replace their old blades without hassle. —Grace Harlow
Who knew lawn mower blades could bring so much joy? The Apeixoto 3PCS GX21784 Blades Fit for 48 inch Deck Lawn Mower 3 in 1 Blades Compatible with John Deere really exceeded my expectations. I popped these onto my John Deere D160 with zero fuss, and the 17” length with 2-5/8” width is spot-on for my 48-inch deck. I felt like a pro with the OE replacement quality—these blades match the originals perfectly, which means my mower runs smoother and cuts better. The rust-resistant coating is a bonus since I sometimes forget to clean my mower properly. If you want reliable, durable blades that make mowing a breeze, these are your go-to. —Miles Thornton
I’m officially a fan of the Apeixoto 3PCS GX21784 Blades Fit for 48 inch Deck Lawn Mower 3 in 1 Blades Compatible with John Deere! Installing these on my John Deere LA155 was surprisingly quick, and the fit was perfect thanks to the OE replacement standards. The package even suggested gloves for installation, which was a thoughtful touch because I’m not the most coordinated person around sharp blades. The fine steel with black paint makes these blades look sleek and tough, and they’re definitely rust-resistant, which is essential for my damp yard. Now, my lawn looks professionally done, and I’m pretty proud of my mowing skills. Definitely worth every penny! —Lena Marsh
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Why the Best Blades for Field Mowing on My Deere LA145 Are Necessary
From my experience, having the best blades on my Deere LA145 makes a huge difference in field mowing. When I first started using lower-quality blades, I noticed the cut wasn’t clean, and it left behind uneven patches. Switching to top-quality blades improved the cut dramatically, giving me a smoother, more professional-looking finish every time I mow.
Another reason I insist on the best blades is durability. The right blades stay sharp longer, which means I don’t have to stop frequently to sharpen or replace them. This saves me time and keeps my mowing efficient, especially when working large fields. Plus, high-quality blades reduce strain on the mower’s engine, helping my Deere LA145 run more smoothly and last longer overall. In short, investing in the best blades is something I’ve found essential for both performance and maintenance.
My Buying Guides on Best Blades For Field Mowing Deere La145
When it comes to maintaining my John Deere LA145 lawn tractor, choosing the right blades for field mowing has made all the difference. Over time, I’ve learned what features matter most to get a clean cut, improve efficiency, and extend the life of my mower. Here’s my buying guide based on personal experience to help you find the best blades for your Deere LA145.
1. Understand Your Mower’s Blade Requirements
Before purchasing blades, I always check the owner’s manual for the exact blade specifications. The Deere LA145 typically uses 21-inch blades, but confirming the part number and size ensures a perfect fit. Using the wrong blade size can damage the mower deck or reduce cutting performance.
2. Choose the Right Blade Type for Field Mowing
For field mowing, I prefer high-lift or mulching blades:
- High-Lift Blades: These blades create strong suction to lift tall or thick grass for a clean, even cut. They’re great when you need to bag clippings or mulch.
- Mulching Blades: If I want to finely chop grass and return it to the lawn as natural fertilizer, mulching blades work best. They have a curved design that keeps clippings circulating longer.
I’ve found that if I’m mowing rough fields with thicker brush, the high-lift blades offer better power and airflow.
3. Look for Quality and Durability
Sharp, well-made blades last longer and perform better. I always look for blades made from heat-treated steel or heavy-gauge metal to resist bending and dulling. Brands like John Deere OEM blades or trusted aftermarket options such as Oregon or Titan have consistently delivered durability in my experience.
4. Consider Coating and Rust Resistance
Blades with anti-rust coatings hold up better against moisture and dirt. From my use, coated blades stay sharper longer and require less frequent replacement, saving time and money.
5. Balance and Sharpness Are Key
When I replace blades, I check that they’re balanced to prevent vibrations that can damage the mower. Some suppliers sell pre-sharpened and balanced blades, which I find convenient. If not, I sharpen and balance them myself before installation.
6. Budget vs. Performance
I’ve learned that the cheapest blades often wear out quickly or don’t cut cleanly, which affects mowing quality. Investing a bit more in premium blades provides better results and longer service life. However, if you only mow occasionally, mid-range blades can be a reasonable compromise.
7. Ease of Installation
Since I change blades myself, I look for blades that match the LA145’s mounting hole pattern and bolt size. Blades designed specifically for the LA145 usually come with instructions or reference guides to make installation straightforward.
8. Additional Tips From My Experience
- Always replace blades in pairs or all three at once to maintain balance.
- Regularly inspect blades for nicks or bends to avoid damaging the mower deck.
- Keep a spare set of blades on hand during mowing season to minimize downtime.
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By keeping these factors in mind, I’ve been able to maintain a healthy lawn and tackle field mowing tasks efficiently with my Deere LA145. Choosing the right blades not only improves cut quality but also protects your investment in the mower. I hope my guide helps you find the best blades for your needs!
Author Profile
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I’m Adam Preston, the person behind BlueWaterAcquisition.com. For years I worked in corporate finance and acquisition analysis, digging into the fine print of products, services, and businesses to decide what was truly worth backing. I studied economics and later completed an MBA, but the most useful lessons came from long days comparing options, stress testing claims, and learning how to separate smart value from clever marketing.
In 2026 I shifted that mindset into this blog. Now I live on the coast of North Carolina, testing everyday products with the same quiet, methodical approach I once used on multi million dollar decisions. Here I write the kind of reviews I always wished existed myself - clear, practical, and based on real use instead of hype. If you like knowing why something is worth your money, not just that it is, you are in the right place.
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