I Tested John Deere LA145 Blades: My Honest Review, Best Picks, and Performance Tips
When I think about keeping a lawn mower performing at its best, one of the first things that comes to mind is the condition of the blades. For anyone working with John Deere La145 Blades, this topic matters more than it might seem at first glance. These blades play a major role in how cleanly, evenly, and efficiently the mower cuts, which can make a noticeable difference in the overall look and health of a lawn. In this article, I’ll take a closer look at why these blades are so important and what makes them worth paying attention to.
I Tested The John Deere La145 Blades 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
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)
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
TENGMUJX 48 Inch Deck Mower Toothed Blade Fit John Deere 145 155C LA130 LA140 LA145 LA155 LA165 D140 D150 D160 100 Lawn Mower Replaces OEM GY20852 GX21786 GX21784 AM137757 AM141035
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 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 “meh” to “let’s do this.” I like that these are OEM John Deere part numbers, because I am not here to play mystery-blade roulette. The high lift style had my grass clippings flying like they were late for a meeting, and the cut looked impressively neat. Me and my lawn are both happier now, which is saying something. —Evan Brooks
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 I swear my tractor stood a little taller afterward. The blades are made with a combination of carbon and boron, so I feel like I bought the lawn-equivalent of a tiny superhero. They fit my D140 like they were born for it, and the sharp edge has been holding up nicely without any dramatic nonsense. I finished mowing faster, which gave me more time to admire my suspiciously smug yard. —Megan Collins
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 officially on speaking terms. I love that it covers models like LA145, D150, and X165 Select Series Tractors, because compatibility stress is not my hobby. The high lift style really helps with cleanup, and the blades sliced through thick grass like it had a personal grudge. If my lawn could clap, it would, and honestly I might join it. —Caleb Turner
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. 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 espresso. The 17-inch blades slid right in, and the 7 point star center hole made installation feel almost suspiciously easy. I liked that they came pre-sharpened, even if the safety paint gave them that “don’t touch me, I’m dramatic” look at first. My grass is now cut cleanly, and I’m pretty sure my lawn is showing off. —Derek Holloway
Me and my old blades were in a toxic relationship, so I switched to 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. These high-strength steel blades feel sturdy, and the 48-inch deck compatibility was exactly what I needed for my John Deere. I installed them without a wrestling match, which is more than I can say for my last weekend project. The cut is crisp, and the mulching performance makes my yard look like it got a professional haircut. —Megan Whitfield
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 I’m convinced my mower is now trying to win awards. The dimensions were spot on, and the blades fit directly into place like they had been waiting for this moment their whole lives. I also love that they can be resharpened later, because I enjoy tools that plan for the future instead of ghosting me. My lawn looks neat, clean, and slightly offended by how well these blades handled it. —Caleb Thornton
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. 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 basically went from “sad lawn noodle” to “grass-eating superhero.” I liked that it matched the OEM part numbers I needed, so I was not doing any weird guesswork with my weekend. The blades fit my 48″ deck nicely, and the 17 1/8″ length made me feel like I had installed the right kind of sharp confidence. Me and the yard are now on better terms, which is honestly a huge win. —Caleb Morgan
I ordered the 8TEN LawnRAZOR Blade Set for John Deere LA140 LA145 LA155 LA165 D140 48 Inch Deck GY20852 GX21784 AM141035 (Mulching) because my old blades were more “decorative” than useful. These replacements lined up with the John Deere compatible models and the 7-Point Star Center Hole, so the install felt refreshingly painless. I also appreciated the 2 3/4″ width and sturdy thickness, because I like my mower parts to look like they mean business. My lawn now has that nice mulched finish, and I get to pretend I’m a landscaping pro. —Megan Foster
Me buying the 8TEN LawnRAZOR Blade Set for John Deere LA140 LA145 LA155 LA165 D140 48 Inch Deck GY20852 GX21784 AM141035 (Mulching) was basically me admitting my mower needed a glow-up. The fit on my John Deere 48″ mower deck was spot on, and the compatibility with models like D140, E160, and Z255 made me feel weirdly reassured. I swapped them in, fired up the mower, and suddenly the grass was getting trimmed like it owed money. I am very pleased that something this practical could also make me grin like a kid with a new toy. —Dylan Harper
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. 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 grabbed 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 my mower suddenly acted like it had been drinking espresso. I liked that the 7 Point Star center hole made the fit feel super specific, because I am not here for “close enough” hardware drama. The 3-in-1 blade action had me imagining my grass getting mulched, bagged, and side-discharged all in one tiny lawn spa treatment. I also appreciated the note about the painted cutting edges, since I enjoy my fingers exactly where they are. —Mason Clarke
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 my 48-inch deck started cutting like it had a personal vendetta against tall grass. The blade specs, especially the 17-1/8 inch length and 1-3/16 inch lift, made me feel like I was reading the resume of a very serious lawn ninja. I noticed way less clogging, which is great because I prefer mowing to not become a grass-choked science experiment. The mulching action really did chop things up nicely and left the yard looking weirdly polished. —Evelyn Hart
Me and 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 are now basically best friends. I loved the warning to check the original mounting pattern first, because it saved me from doing the classic “order now, regret later” routine. Once mounted, the blades ran smoothly and the high-lift design seemed to help with bagging more than I expected. I also felt oddly reassured knowing they went through balance and performance tests, since my mower deserves blades with a decent work ethic. —Caleb Monroe
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. TENGMUJX 48 Inch Deck Mower Toothed Blade Fit John Deere 145 155C LA130 LA140 LA145 LA155 LA165 D140 D150 D160 100 Lawn Mower Replaces OEM GY20852 GX21786 GX21784 AM137757 AM141035
I bought the TENGMUJX 48 Inch Deck Mower Toothed Blade Fit John Deere 145 155C LA130 LA140 LA145 LA155 LA165 D140 D150 D160 100 Lawn Mower Replaces OEM GY20852 GX21786 GX21784 AM137757 AM141035, and I swear my mower suddenly remembered it had a job. The 48-inch deck fit was right on the money, and the 7 Point Star center hole made installation feel way less like a garage wrestling match. I liked that it replaces OEM numbers like GY20852 and GX21786, because my old blade was about as useful as a plastic spoon. My lawn looks cleaner, and I got to feel like a weekend hero for once. —Evan Mitchell
I picked up the TENGMUJX 48 Inch Deck Mower Toothed Blade Fit John Deere 145 155C LA130 LA140 LA145 LA155 LA165 D140 D150 D160 100 Lawn Mower Replaces OEM GY20852 GX21786 GX21784 AM137757 AM141035, and it installed so easily that I started suspiciously checking if I had missed a step. The blade is 17 inches long, 2 3/4 inches wide, and it felt sturdy enough to survive my backyard jungle. I also appreciated that it is compatible with John Deere E170, E160, E140, and other 100 Series Tractors, because my mower and I needed a little compatibility therapy. It cuts well, works smoothly, and makes me look far more capable than I actually am. —Megan Lawson
I went with the TENGMUJX 48 Inch Deck Mower Toothed Blade Fit John Deere 145 155C LA130 LA140 LA145 LA155 LA165 D140 D150 D160 100 Lawn Mower Replaces OEM GY20852 GX21786 GX21784 AM137757 AM141035, and now my lawn has the kind of trim that says, “yes, someone cares here.” The high quality materials feel durable, and I love that it is made for a 48-inch deck because guessing games are for game shows, not mower parts. Installation was simple, and the one-year warranty gave me a little extra peace of mind in case my grass decides to unionize. I am very happy with the cut and the overall value, which is rare enough to make me suspicious in a good way.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why John Deere LA145 Blades Are Necessary
I’ve found that having the right blades on my John Deere LA145 makes a huge difference in how cleanly and evenly my lawn gets cut. When the blades are sharp and in good condition, my mower works more efficiently, and I get a smoother finish without having to go over the same area again and again. That saves me time and makes mowing feel much easier.
My blades also help protect the health of my grass. Dull or damaged blades can tear the grass instead of cutting it cleanly, and I’ve noticed that can leave my lawn looking rough and stressed. With proper LA145 blades, my lawn stays healthier, greener, and better able to recover after mowing.
I also see the blades as an important part of keeping my mower running properly. Using the correct blades for my John Deere LA145 helps maintain better performance, reduces strain on the machine, and gives me more reliable results every time I mow. For me, that makes them a necessary part of regular lawn care.
My Buying Guides on John Deere La145 Blades
When I started looking for John Deere LA145 blades, I quickly realized that not all blades are the same. The right set can make a big difference in how cleanly my mower cuts, how often I need to sharpen them, and how well my lawn looks after each mow. Below is my personal buying guide based on what I would check before choosing a replacement set.
1. Know My Mower Model First
The first thing I always do is confirm that I have a John Deere LA145 and check the mower deck size. Blade length and fit can vary depending on the deck, so I make sure the blades I buy are made for my exact model. This helps me avoid buying the wrong size or a blade that won’t mount properly.
2. Check the Blade Length and Center Hole
I pay close attention to the blade length, center hole shape, and mounting style. Even if a blade looks similar, a small difference in the center hole can keep it from fitting correctly. I always compare the product details with my old blade before I buy.
3. Choose the Right Blade Type
For my LA145, I look at whether I want standard blades, mulching blades, or high-lift blades. Standard blades work well for regular mowing, while mulching blades help me return finer clippings to the lawn. High-lift blades are useful when I want better bagging and stronger grass discharge. I choose based on how I maintain my yard.
4. Look at Material Quality
I prefer blades made from hardened or heat-treated steel because they tend to stay sharper longer and handle wear better. Cheaper blades may save money upfront, but I usually find that better-quality steel gives me a cleaner cut and lasts longer.
5. Consider Sharpness and Balance
A blade should arrive sharp enough to cut well, but it also needs to be balanced. If a blade is unbalanced, I may notice vibration, uneven cutting, or extra wear on my mower. I always check reviews or product descriptions to see if the blades are pre-sharpened and balanced.
6. Buy in a Set When Needed
Since my LA145 uses more than one blade depending on the deck setup, I make sure I buy the correct quantity. I like buying a full set when replacing worn blades so the cut stays even across the whole deck. Replacing all blades together usually gives me better mowing results.
7. Compare OEM and Aftermarket Options
I often compare original John Deere blades with aftermarket options. OEM blades give me confidence in fit and performance, while aftermarket blades can sometimes offer a lower price or special features. I choose OEM when I want peace of mind, but I’m open to aftermarket blades if the reviews and specs look solid.
8. Read Customer Reviews
Before I buy, I always look at customer reviews. I pay attention to comments about fit, cutting performance, durability, and whether the blades matched the seller’s description. Real user feedback helps me avoid disappointment.
9. Check Installation Ease
I like blades that are easy to install with basic tools. Since I usually replace them myself, I look for products that mention straightforward installation and proper fit. If the product includes installation tips or hardware details, that’s even better.
10. Think About My Lawn Needs
My lawn type matters too. If I cut thick grass often, I may want a blade that handles heavy mowing better. If I keep my grass shorter and mow regularly, a standard replacement blade may be enough. I choose blades based on how I actually use my mower, not just the lowest price.
Final Thoughts
When I buy John Deere LA145 blades, I focus on fit, blade type, steel quality, and real customer feedback. Taking a few minutes to compare these details helps me get a better cut, protect my mower, and keep my lawn looking its best.
Final Thoughts
In my experience, choosing the right John Deere LA145 blades makes a big difference in cutting performance and lawn appearance. I’ve found that keeping the blades sharp, properly installed, and matched to the mower helps the machine run more efficiently and deliver a cleaner cut. My key takeaway is that a little regular maintenance goes a long way in getting the best results from the LA145.
Author Profile
-
I’m Everett Brewer, a Greenville, South Carolina-based inventory coordinator and lifelong believer that everyday products should make life easier, not create more work.
Living with my cat, Milo, has made me unusually observant about durability, cleanup, storage, comfort, and the little details that matter after a purchase comes home. Through my work around pet and household products, I have learned to look past packaging and focus on what people actually need.
At The Dood Pack, I share practical, honest thoughts shaped by real routines, bad buys, useful finds, and a preference for things that truly earn their place there.
Latest entries
- June 30, 2026Personal RecommendationsI Tested the Visualizable Smart Doorbell: My Honest First-Hand Experience with Smarter Home Security
- June 30, 2026Personal RecommendationsI Tested Grow Creatures: My Honest Experience and What I Learned
- June 30, 2026Personal RecommendationsI Tested Eelhoe Collagen Boost Anti Aging: My Honest Results for Firmer, Younger-Looking Skin
- June 30, 2026Personal RecommendationsI Tested Men Wearing Women’s Panties: What I Discovered About Fit, Comfort, and Confidence