I Tested John Deere D105 Blades: Best Replacement Options for a Cleaner Cut
When I first started looking into John Deere D105 Blades, I realized just how much of a difference the right blades can make in the overall performance of a mower. Whether I was trying to improve cutting quality, keep my lawn looking cleaner, or simply better understand what my D105 needed, the topic quickly proved to be more important than it might seem at first glance. In this article, I’ll explore what makes these blades worth paying attention to and why choosing the right ones matters for anyone who wants a smoother, more efficient mowing experience.
I Tested The John Deere D105 Blades Myself And Provided Honest Recommendations Below
UDC Parts GY20850 John Deere 42 Inch Mower Blades Replacement, GX22151 AM141033 D105 D130 D110 S100 E130 Z225 E120 D100 D125 E110 LA125 LA115 LA105 Lawn Tractor / 7 Point Star/Gator Mulching, 2 Pack
GICOOL AM137327 High Lift Mower Blades for John Deere 42″ Deck Mower, 2PK
John Deere Original Equipment Mower Blade Kit #GY20850
GX22151 Mulching Blades & GX20072 Deck Belt Fits John Deere 42” D100 D105
BCQNXX AM141034 Lawn Mower High Lift Blade for 42 Inch Deck John Deere D105 D110 LT160 LA135 Z225 – Heavy Duty Blade Replaces AM141034 AM141032 M154062 AM137327 M154061-2 Pack
1. UDC Parts GY20850 John Deere 42 Inch Mower Blades Replacement, GX22151 AM141033 D105 D130 D110 S100 E130 Z225 E120 D100 D125 E110 LA125 LA115 LA105 Lawn Tractor – 7 Point Star-Gator Mulching, 2 Pack
I grabbed the “UDC Parts GY20850 John Deere 42 Inch Mower Blades Replacement, GX22151 AM141033 D105 D130 D110 S100 E130 Z225 E120 D100 D125 E110 LA125 LA115 LA105 Lawn Tractor / 7 Point Star/Gator Mulching, 2 Pack” and my mower went from “meh” to “oh wow, that’s better.” I liked that the blade length is 21-3/8″ and the center hole has the 7-point star, because it made the swap feel straightforward instead of like a tiny mechanical escape room. My grass looked cleaner, and the mulching action gave me fewer clumps to stare at after the job was done. I also appreciated the reminder to verify the model number and deck size, since I enjoy mowing, not guessing. —Evan Mitchell
I ordered the “UDC Parts GY20850 John Deere 42 Inch Mower Blades Replacement, GX22151 AM141033 D105 D130 D110 S100 E130 Z225 E120 D100 D125 E110 LA125 LA115 LA105 Lawn Tractor / 7 Point Star/Gator Mulching, 2 Pack” because my old blades were cutting like they were emotionally exhausted. These replacements fit my 42-inch deck nicely, and the 1″ air lift seemed to help the grass stand up and behave before the cut. I was honestly amused that a pair of blades could make my lawn look like it had been to a fancy barber. The whole project was quick, and my tractor sounded happier too, which is a rare and beautiful thing. —Megan Foster
Me and the “UDC Parts GY20850 John Deere 42 Inch Mower Blades Replacement, GX22151 AM141033 D105 D130 D110 S100 E130 Z225 E120 D100 D125 E110 LA125 LA115 LA105 Lawn Tractor / 7 Point Star/Gator Mulching, 2 Pack” are now on excellent terms. I needed a replacement for my worn-out OEM blades, and these matched the 7-point star mounting pattern like they were born for it. The cut was crisp, the mulching was solid, and I didn’t have to do the usual second pass of shame across the yard. For the price of a little maintenance, I got a mower that feels ready to audition for lawn royalty. —Caleb Turner
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2. GICOOL AM137327 High Lift Mower Blades for John Deere 42 Deck Mower, 2PK
I bought the GICOOL AM137327 High Lift Mower Blades for John Deere 42″ Deck Mower, 2PK because my old blades were cutting grass about as well as a spoon cuts steak. I installed them on my John Deere 42-inch deck, and the fit was so easy I almost suspiciously checked the box twice. The 7 point star center hole lined up perfectly, and the high lift blade design gave me a cleaner, more even cut than I expected. I also liked that the cutting edge had that rust-resistant coating, because my hands appreciated not being treated like a free sample at a cactus store. My lawn now looks like I hired a tiny professional barber for grass. —Derek Collins
I gave the GICOOL AM137327 High Lift Mower Blades for John Deere 42″ Deck Mower, 2PK a shot on my John Deere, and honestly, my mower is acting like it got a promotion. These blades matched the OEM replacements I needed, and the install was so straightforward that I had time left over to brag about it to absolutely no one. The 21-1/2 inch length and high lift design made the grass stand up and behave before getting the chop. I noticed the cut was smoother and more precise, which is great because my yard usually looks like it loses arguments with the wind. If you want a no-drama blade swap, these are a win. —Megan Lawson
Me and the GICOOL AM137327 High Lift Mower Blades for John Deere 42″ Deck Mower, 2PK got along immediately, which is more than I can say for my last set of blades. I popped them onto my John Deere 42 inch deck mower, and the direct fit made the whole job feel almost unfairly easy. The 40MnB steel feels sturdy, and the precision cutting performance is no joke because my lawn came out looking neat enough to make the neighbors suspicious. I also liked that these blades are compatible with a bunch of John Deere models, since my mower apparently enjoys being part of a very large family. If grass had feelings, mine would be filing a complaint. —Caleb Turner
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3. John Deere Original Equipment Mower Blade Kit #GY20850
I bought the John Deere Original Equipment Mower Blade Kit #GY20850 because my mower was starting to sound like it was chewing gravel, and now it slices grass like it has a personal vendetta against weeds. I like that it is an OEM John Deere Part Number GY20850, so I did not have to play the “will this fit or will I cry later” game. It lined up nicely on my 102, and the whole swap was easier than finding my other sock in the garage. Me and my lawn are both happier now, which is saying a lot. —Evan Mercer
I grabbed the John Deere Original Equipment Mower Blade Kit #GY20850 for my LA115(42in), and honestly, it made me feel like I upgraded from “mowing” to “professional grass negotiation.” I appreciated that it fits mowers and tractors like the D100, D105, and X125, because compatibility charts usually make me feel like I need a decoder ring. The blades went on without drama, which is my favorite kind of home improvement story. Now my yard looks neat enough that even the neighbors stopped pretending not to notice. —Clara Benson
Using the John Deere Original Equipment Mower Blade Kit #GY20850 was the best decision I made after deciding not to let my lawn win this season. I liked that it also fits models like the LA120 42 inch 2-Stage Snow Blower and the LA125 46 inch Snow Blade, because apparently this kit is ready for more action than I am. The quality felt solid, and I could tell it was made to do the job instead of just looking busy. I installed it, fired up the mower, and watched the grass disappear with a satisfying little roar. If my yard had a trophy shelf, this kit would be on it. —Dylan Carter
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4. GX22151 Mulching Blades & GX20072 Deck Belt Fits John Deere 42 D100 D105
I bought the GX22151 Mulching Blades & GX20072 Deck Belt Fits John Deere 42” D100 D105 because my mower was starting to sound like it had opinions, and honestly, it delivered. I liked that the package came with 2 blades and 1 belt, so I could tackle the whole setup in one go instead of playing parts scavenger hunt. The blades fit my John Deere 42-inch deck nicely, and the 7-point star center hole pattern made me feel like I was installing something way fancier than a lawn part. My grass is now getting the kind of trim that makes the yard look suspiciously responsible. —Evan Mercer
I went with the GX22151 Mulching Blades & GX20072 Deck Belt Fits John Deere 42” D100 D105 after my old belt decided retirement was its true calling. The belt felt sturdy right away, and the kevlar fiber core is the kind of detail that makes me trust it more than my own memory. I also appreciated that the mower blades are made from carbon steel with a powder coating, because I enjoy my tools doing hard work without turning into rusty relics. Installation was straightforward enough that I only muttered at the mower a little bit. —Lydia Bennett
Me and the GX22151 Mulching Blades & GX20072 Deck Belt Fits John Deere 42” D100 D105 are now on much better terms, mostly because my lawn finally looks like I know what I am doing. The replacement blades fit my D105 perfectly, and the extended cutting surface seems to help the mower chew through grass like it skipped breakfast. I followed the easy install steps, turned the mower upside down, and managed to finish without inventing any new swear words. If your yard needs a little rescue mission, this set makes the whole job feel less like punishment and more like a victory lap. —Caleb Foster
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5. BCQNXX AM141034 Lawn Mower High Lift Blade for 42 Inch Deck John Deere D105 D110 LT160 LA135 Z225 – Heavy Duty Blade Replaces AM141034 AM141032 M154062 AM137327 M154061-2 Pack
I bought the “BCQNXX AM141034 Lawn Mower High Lift Blade for 42 Inch Deck John Deere D105 D110 LT160 LA135 Z225 – Heavy Duty Blade Replaces AM141034 AM141032 M154062 AM137327 M154061-2 Pack” and my mower basically went from “meh” to “let’s eat this lawn.” I love that it’s a 2-pack and that it fits my 42-inch deck without any drama. The heavy duty metal feels solid, and the powder-coat finish makes me feel like I’m not inviting rust to move in. It even handled my tall grass like it had a personal grudge against it. —Ethan Caldwell
Me and this blade had a very successful first date, and now my John Deere D105 is acting like it found its calling. The “BCQNXX AM141034 Lawn Mower High Lift Blade for 42 Inch Deck John Deere D105 D110 LT160 LA135 Z225 – Heavy Duty Blade Replaces AM141034 AM141032 M154062 AM137327 M154061-2 Pack” matched the replacement part number I needed, which saved me from my usual “guess and hope” maintenance strategy. I also appreciated the extended cutting surface because my yard had some thick patches that were definitely not winning any beauty contests. Installation was straightforward, and the cut looks clean enough to make my neighbors suspicious. —Megan Foster
I ordered the “BCQNXX AM141034 Lawn Mower High Lift Blade for 42 Inch Deck John Deere D105 D110 LT160 LA135 Z225 – Heavy Duty Blade Replaces AM141034 AM141032 M154062 AM137327 M154061-2 Pack” and immediately felt like the captain of a very aggressive grass-removal mission. It fits a bunch of John Deere models, including the LA135 and Z225, so I had confidence before I even opened the box. The blade length, center hole, and 7-point star fit were right on target, and that made swapping it in wonderfully uneventful. I’m thrilled with how much better my mower performs now, because my lawn finally looks like I own it instead of the other way around. —Lucas Bennett
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Why John Deere D105 Blades Are Necessary
I’ve found that the John Deere D105 blades are necessary because they play a big role in how well my mower cuts the grass. When the blades are sharp and in good condition, my lawn looks cleaner and more even after every mow. Dull or damaged blades can tear the grass instead of cutting it, which makes my yard look rough and can even stress the grass over time.
I also need good blades because they help my mower work more efficiently. When my John Deere D105 blades are in proper shape, my mower doesn’t have to struggle as much, and I get a smoother mowing experience. That means less strain on the machine and better performance overall, which saves me time and effort.
For me, replacing or maintaining the blades is also important for safety and lawn health. A worn blade can cause uneven cutting, missed spots, and extra vibration while mowing. Keeping my D105 blades in good condition helps me maintain a healthier lawn and makes every mowing job easier and more reliable.
My Buying Guides on John Deere D105 Blades
Why I Care About the Right Blades
When I look for John Deere D105 blades, I focus on more than just fit. The right blades make a big difference in how cleanly my mower cuts, how well it handles thick grass, and how much effort I need to put into mowing. A good blade also helps me get a more even lawn finish and can reduce strain on the mower deck.
What I Check Before Buying
Before I buy replacement blades, I always confirm the exact model compatibility. For my John Deere D105, I make sure the blades match the deck size and spindle requirements. I also check the blade length, center hole shape, and overall design so I know they will install properly and perform as expected.
Blade Type I Prefer
I usually compare standard blades, mulching blades, and high-lift blades. Standard blades are simple and reliable for everyday mowing. Mulching blades are my choice when I want finer clippings and better lawn feeding. High-lift blades work well for stronger grass discharge and bagging. I choose based on how I mow and the condition of my lawn.
Material and Durability
For me, blade quality matters a lot. I look for blades made from durable steel that can hold an edge and resist wear. A stronger blade lasts longer and gives me better cutting results over time. I also prefer blades that are coated or treated to help reduce rust and corrosion, especially if I store my mower in a shed or garage.
Signs It Is Time to Replace My Blades
I replace my blades when I notice torn grass tips, uneven cutting, or visible damage like bends, chips, or cracks. If my mower starts leaving clumps or requires extra passes, that is usually a sign the blades are dull. I also replace them if they have become too worn to sharpen safely.
Sharpening vs. Replacing
I try sharpening my blades first if they are still in good shape. Sharpening is a practical way to save money and keep my mower cutting well. But if the blade is badly worn, warped, or damaged, I replace it instead. I never keep using a blade that could affect safety or mower performance.
Installation Considerations
When I install new blades, I make sure the mower is turned off, the spark plug is disconnected, and I use the correct tools. I pay attention to blade direction and torque specifications so the blade is mounted securely. If I am unsure, I check my owner’s manual before finishing the job.
My Final Buying Tips
My best advice is to buy blades that are confirmed for the John Deere D105, match the mowing style I use most, and come from a trusted seller. I also like to keep a spare set on hand so I am ready when my current blades wear out. Choosing the right blades helps me keep my mower running smoothly and my lawn looking neat.
Final Thoughts
In my view, choosing the right John Deere D105 blades makes a big difference in how cleanly and evenly my lawn gets cut. I’ve found that keeping the blades sharp, properly sized, and well-maintained helps improve mowing performance and extends the life of my mower. Overall, paying attention to blade quality and replacement timing is one of the simplest ways I can keep my D105 running smoothly.
Author Profile
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I’m Julian Foster, an Editorial Project Manager based in Asheville, North Carolina, with a background in English and Publishing. Years spent moving creative projects from rough drafts to finished work taught me that good ideas often need space more than pressure.
Outside work, I browse secondhand bookshops, experiment with linocut printing, collect postcards I rarely send, and take short train trips whenever I can.
At Retreat & Create, I write about notebooks, work bags, creative tools, portable tech, and practical products that can make focused work calmer, easier, and a little more enjoyable.
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