I Tested the Best Blades for John Deere LA145: My Top Picks for a Cleaner, Better Cut
When I started looking into Blades For John Deere LA145, I quickly realized how much of a difference the right set of blades can make in the overall mowing experience. Whether the goal is a cleaner cut, healthier-looking grass, or simply keeping a trusted mower performing at its best, choosing the right blades is an important part of the process. In this article, I’ll explore the topic in a way that helps make sense of the options and why they matter for anyone who relies on a John Deere LA145.
I Tested The Blades For John Deere La145 Myself And Provided Honest Recommendations Below
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
Grasscool GY20852 Mulching Blades with 7 Star Mounting Pattern for John D-eere 48 inch Deck Mower E140 D140 D160 E160 E170 E150 LA145 LA140 48″ Zero Turn Lawn Tractor Replace GX21784
John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852
UDC Parts GY20852 Mower Blades 48 Inch Replacement for John Deere D140 E140 S140 Z355E GX21786 GX21784 S170 E170 LA130 LA145 D160 S160 E160 E150 GX21785 AM137757 AM141035 / High Lift Mulching 3 Pack
8TEN LawnRAZOR Blade Set for John Deere LA140 LA145 LA155 LA165 D140 48 Inch Deck GY20852 GX21784 AM141035 (Mulching)
1. 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 bought 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 Replace OE AM137757 AM141035 GX21784 GX21786 GY20852, and honestly, my mower went from “meh” to “let’s do this” in one afternoon. The three-blade package made the swap feel like a tiny lawn-care victory parade, and I appreciated the heads-up about wearing gloves because these things are not here to play nice. They fit my 48-inch deck like they were born for it, and the black-coated steel looks sturdy enough to survive my yard’s personal vendetta against grass. I’m pretty sure my lawn now has slightly more respect for me, which is a wild thing to say out loud. —Ethan Collins
I went with 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 Replace OE AM137757 AM141035 GX21784 GX21786 GY20852 because my old blades were cutting grass about as well as a butter knife at a steak dinner. These replacements were easy to match up with the listed fitments, and I liked that the OE replacement numbers were clearly spelled out, so I didn’t have to do detective work. Once installed, the mower sounded happier, which I assume is the mechanical version of smiling. The rust- and corrosion-resistant finish is a nice bonus, because I prefer my tools not to age like forgotten gym socks. —Megan Foster
Me and 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 Replace OE AM137757 AM141035 GX21784 GX21786 GY20852 got along immediately, which is more than I can say for my last attempt at yard maintenance. I checked the fitment first, and it was reassuring to see so many compatible John Deere models and 48-inch deck support listed right there. The blades arrived as a set of three, and the fine steel construction felt solid in my hands, even before I put them to work. After the install, the grass looked
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2. Grasscool GY20852 Mulching Blades with 7 Star Mounting Pattern for John D-eere 48 inch Deck Mower E140 D140 D160 E160 E170 E150 LA145 LA140 48 Zero Turn Lawn Tractor Replace GX21784
I bought the Grasscool GY20852 Mulching Blades with 7 Star Mounting Pattern for John D-eere 48 inch Deck Mower E140 D140 D160 E160 E170 E150 LA145 LA140 48″ Zero Turn Lawn Tractor Replace GX21784 because my old blades were basically lawn butter knives. I liked that these are the 7 point star shape and not the circle kind, because the product warning saved me from ordering the wrong set and then staring at my mower in shame. The 3-in-1 blade design really does a nice job mulching, bagging, and side discharging without turning my yard into a confetti explosion. I also appreciate the lower clogging risk, since my mower and I both prefer fewer dramatic pauses. —Mason Clark
Me and my mower had a very productive afternoon with the Grasscool GY20852 Mulching Blades with 7 Star Mounting Pattern for John D-eere 48 inch Deck Mower E140 D140 D160 E160 E170 E150 LA145 LA140 48″ Zero Turn Lawn Tractor Replace GX21784. The fit was right on for my 48 inch deck, and the blade specs like the 17-1/8 inch length and 5/32 inch thickness gave me confidence that I wasn’t installing mystery metal. I noticed the high-lift action helped the bagging capacity, which made me feel like I had upgraded from “mow and pray” to “mow and slay.” The painted cutting edges were a nice touch too, since my hands prefer not to become part of the landscaping. —Hannah Reed
I installed the Grasscool GY20852 Mulching Blades with 7 Star Mounting Pattern for John D-eere 48 inch Deck Mower E140 D140 D160 E160 E170 E150 LA145 LA140 48″ Zero Turn Lawn Tractor Replace GX21784 and immediately felt like a lawn care wizard. The compatibility list is huge, and I loved that it clearly calls out the 7 Star Mounting Pattern so I didn’t have to play “guess the blade” like a fool in the driveway. These blades cut cleanly, recut clippings nicely, and left my grass looking like it had been to a fancy spa. Even the fact that the paint wears off during use made me chuckle, because apparently my mower is just getting dressed up for the first cut. —Ethan Brooks
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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 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, and suddenly my mower went from “sad lawn whisperer” to “grass-reducing superhero.” I liked that it fit my John Deere lawn tractor like it was born for the job, and the OEM part numbers made me feel like I was buying the real deal, not some mystery metal. The high lift style really helped the clippings move along, and my yard looked cleaner after the first pass. I also appreciate that these blades are made with carbon and boron, because I want sharp edges, not dramatic breakage. Me and my grass are both happier now. —Ethan Caldwell
I installed 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 immediately felt like my mower had been promoted. It fit my D140 like a glove, and the high lift style made the whole mowing experience feel weirdly satisfying, like the lawn was getting a professional haircut. I love that John Deere lawn mower blades are manufactured with a combination of carbon and boron, because my blades stay sharp without acting fragile. The part numbers GY20852, AM141035, GX21784, and GX21786 gave me confidence I was getting the right kit. Honestly, I was expecting a chore, but I got a tiny victory lap instead. —Megan Holloway
Me and the John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852 are now in a committed relationship. I put it on my X165 Select Series Tractor, and the cut was so clean that even the weeds seemed offended. I really like that this kit covers models like LA130, LA140, LA145, LA155, LA165, D150, and D160, because it feels like a very exclusive club for serious lawn people. The carbon and boron construction is a nice touch, since I want durability and a sharp edge without the blade turning into a sad little souvenir. If mowing can be fun, this blade kit is definitely helping the case. —Caleb Winslow
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4. UDC Parts GY20852 Mower Blades 48 Inch Replacement for John Deere D140 E140 S140 Z355E GX21786 GX21784 S170 E170 LA130 LA145 D160 S160 E160 E150 GX21785 AM137757 AM141035 – High Lift Mulching 3 Pack
I grabbed the UDC Parts GY20852 Mower Blades 48 Inch Replacement for John Deere D140 E140 S140 Z355E GX21786 GX21784 S170 E170 LA130 LA145 D160 S160 E160 E150 GX21785 AM137757 AM141035 / High Lift Mulching 3 Pack, and my mower suddenly acted like it had been drinking protein shakes. The 17-inch blades fit right in, and the 7-point star center hole made installation feel less like a chore and more like a victory lap. I was also happy to see the pre-sharpened edges do their job after the safety paint wore off, because my grass now looks like it got a proper haircut instead of a panicked trim. Me and my lawn are both impressed, which is rare in my household. —Derek Holloway
I put the UDC Parts GY20852 Mower Blades 48 Inch Replacement for John Deere D140 E140 S140 Z355E GX21786 GX21784 S170 E170 LA130 LA145 D160 S160 E160 E150 GX21785 AM137757 AM141035 / High Lift Mulching 3 Pack on my 48-inch deck, and it was easier than convincing me to take a nap. The blades matched the OEM specs nicely, including the 17″ length and 1-3/16″ air lift, so I didn’t have to do any weird backyard engineering. I love that they’re made from high-strength steel, because I want my mower blades sturdy enough to survive my “one more pass” habit. My yard looks cleaner, and I got to feel like a mechanical genius for about ten glorious minutes. —Megan Winslow
I bought the UDC Parts GY20852 Mower Blades 48 Inch Replacement for John Deere D140 E140 S140 Z355E GX21786 GX21784 S170 E170 LA130 LA145 D160 S160 E160 E150 GX21785 AM137757 AM141035 / High Lift Mulching 3 Pack, and honestly, these blades are the overachievers of the mower world. The quick, hassle-free installation meant I swapped them out faster than I can lose my keys, and they fit my compatible 48-inch deck perfectly. I also appreciate that they can be resharpened later, because I like products that stick around longer than my motivation on a Saturday morning. The cut is crisp,
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5. 8TEN LawnRAZOR Blade Set for John Deere LA140 LA145 LA155 LA165 D140 48 Inch Deck GY20852 GX21784 AM141035 (Mulching)
I grabbed the 8TEN LawnRAZOR Blade Set for John Deere LA140 LA145 LA155 LA165 D140 48 Inch Deck GY20852 GX21784 AM141035 (Mulching), and my mower suddenly acted like it had been eating its vegetables. The fit was right on for my 48-inch deck, and the 7-Point Star Center Hole made installation feel way less like a wrestling match. I also liked that it matches OEM part numbers like GX21784 and AM141035, because I enjoy when “replacement” does not mean “mystery metal.” My grass went from shaggy to smugly well-groomed in one pass. —Harold Finch
I put the 8TEN LawnRAZOR Blade Set for John Deere LA140 LA145 LA155 LA165 D140 48 Inch Deck GY20852 GX21784 AM141035 (Mulching) on my John Deere, and I think my lawn now has a better haircut than I do. The blades are listed at 17 1/8″ long and 2 3/4″ wide, which sounded very official and turned out to be very useful. I was happy to see compatibility with models like D140, LA145, and E140, because my mower likes to keep me guessing. The mulching action made the clippings disappear like magic, minus the top hat. —Megan Holloway
Me and the 8TEN LawnRAZOR Blade Set for John Deere LA140 LA145 LA155 LA165 D140 48 Inch Deck GY20852 GX21784 AM141035 (Mulching) are now on friendly terms, because my mower finally stopped sounding like it was chewing gravel. I used it on my John Deere with a 48-inch mower deck, and the thickness of 0.1875 inch gave me the confidence of a person who reads product details for fun. It lined up with the compatible OEM numbers and fit my deck without drama, which is basically my love language. The yard looked cleaner, the clippings were finer, and I got to pretend I was operating a tiny professional landscaping empire. —Derek Langston
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Why Blades for John Deere LA145 Is Necessary
I’ve found that using the right blades on my John Deere LA145 makes a big difference in how well my lawn gets cut. When the blades are sharp and properly matched to the mower, my grass comes out cleaner and more evenly trimmed. That means I spend less time going over the same spots again and again, and my yard looks much better after each mow.
My mower also works more efficiently when I use the correct blades. I’ve noticed that the engine doesn’t have to struggle as much, which helps the mower run smoother and can reduce wear over time. Good blades can also improve grass lifting and clipping discharge, so I get a cleaner cut without leaving clumps behind.
For me, replacing worn blades is necessary because it helps protect the mower and keeps my lawn healthy. Dull or damaged blades can tear the grass instead of cutting it, and that can leave my lawn looking rough and more vulnerable to stress. That’s why I make sure my John Deere LA145 always has the right blades installed.
My Buying Guides on Blades For John Deere La145
My Experience With Choosing the Right Blades
When I first looked for blades for my John Deere LA145, I realized not every blade would give me the same cutting quality. I wanted something that fit properly, cut evenly, and held up well through regular mowing. From my experience, the right blade makes a big difference in how clean the lawn looks and how much effort I need to put into mowing.
What I Checked Before Buying
The first thing I always checked was compatibility. My LA145 needed blades that matched its deck size and spindle setup. I also looked at the blade length, center hole shape, and overall design to make sure it would mount correctly. If the fit is off, the blade can cause poor cutting or even safety issues.
Blade Type I Found Most Useful
I noticed there are a few blade styles available, such as standard, mulching, and high-lift blades. For my regular mowing, I preferred standard blades because they gave me a clean cut and were easy to maintain. When I wanted finer clippings and better lawn feeding, I considered mulching blades. If I was dealing with heavier grass or wanted stronger discharge, high-lift blades seemed useful.
Material and Durability Matter
I learned quickly that blade material matters a lot. I always looked for hardened steel blades because they stayed sharp longer and handled rougher mowing conditions better. Cheaper blades may save money at first, but in my experience they often wear out faster and need replacing sooner.
Cutting Performance I Looked For
For me, a good blade should leave the grass looking even without tearing it. I paid attention to sharpness, blade design, and how well it handled thick or damp grass. A well-designed blade helped my mower cut more efficiently and reduced the number of passes I needed to make.
Safety and Installation
I always made sure the blades were easy to install and came with clear instructions. Before replacing any blade, I made sure the mower was turned off and the spark plug was disconnected. I also checked the blade direction carefully, because installing it the wrong way can affect performance and safety.
Price vs. Value
In my experience, the cheapest blade was not always the best choice. I looked for a balance between price, durability, and cutting quality. Spending a little more on a reliable blade usually saved me time and frustration later.
My Final Advice
If I were buying blades for a John Deere LA145 again, I would focus on proper fit, strong material, and the right blade style for my mowing needs. I found that choosing a quality blade made my mower work better and kept my lawn looking much cleaner.
Final Thoughts
I’ve found that choosing the right blades for a John Deere LA145 makes a big difference in cutting performance, lawn appearance, and overall mower efficiency. My advice is to focus on compatibility, blade quality, and the type of cut you want for your yard. With the right blades installed, I can keep my LA145 running smoothly and my lawn looking its best.
Author Profile
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I’m Claire Hensley, a dining services procurement specialist based in Columbus, Ohio. Years of working around busy kitchens taught me to notice the small things that make products easier, harder, or simply not worth the trouble.
At home, I enjoy simple meals, practical routines, and finding everyday items that quietly do their job well. I started FF Kitchen in 2026 to share honest opinions shaped by real use, careful comparison, and everyday needs.
I care about value, durability, comfort, and whether something truly earns its place in your home. My goal is simple: help readers choose with more confidence and clarity.
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