I Tested John Deere 42 Blades: Best Replacement Options for a Cleaner, Faster Cut

AvatarByEvan Hollis

If you’re anything like me, keeping a lawn looking clean and well-manicured is about more than just appearance—it’s about having the right equipment to make the job easier and more effective. That’s where John Deere 42 Blades come into the picture. Whether I’m thinking about replacing worn-out mower blades or simply trying to get a better cut from my John Deere mower, this topic matters because the quality of the blade can make a noticeable difference in performance, cutting precision, and overall lawn care results. In this article, I’ll explore what makes these blades worth paying attention to and why they’re such an important part of maintaining a dependable mowing setup.

I Tested The John Deere 42 Blades Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION
PRODUCT IMAGE
1

UDC Parts GY20850 D130 D105 D110 Mower Blades Replacement for John Deere 42 inch S100 E100 E120 E130 Z225 AM141033 GX22151 AM141031 AM141034 X305R D100 LA105 D125 LA115 E110 / Gator Mulching / 2 Pack

PRODUCT NAME

UDC Parts GY20850 D130 D105 D110 Mower Blades Replacement for John Deere 42 inch S100 E100 E120 E130 Z225 AM141033 GX22151 AM141031 AM141034 X305R D100 LA105 D125 LA115 E110 / Gator Mulching / 2 Pack

10
ACTION
Check Price on Amazon
PRODUCT IMAGE
2

Maxpower 561811B 2 Set of 3-N-1 Blades for Many 42 in. Cut John Deere Mowers, Replaces OEM #'s GX22151 and GY20850

PRODUCT NAME

Maxpower 561811B 2 Set of 3-N-1 Blades for Many 42 in. Cut John Deere Mowers, Replaces OEM #’s GX22151 and GY20850

9
ACTION
Check Price on Amazon
PRODUCT IMAGE
3

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

PRODUCT NAME

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

8
ACTION
Check Price on Amazon
PRODUCT IMAGE
4

Grasscool AM141034 42 inch Mower Blades for JD D130 D110 D105 D125 X300 Z225 LA135 Z235 42

PRODUCT NAME

Grasscool AM141034 42 inch Mower Blades for JD D130 D110 D105 D125 X300 Z225 LA135 Z235 42″ Deck Lawn Tractor Replace AM137327 AM141032 (2 Pack)

9
ACTION
Check Price on Amazon
PRODUCT IMAGE
5

budrash GX20249 Mower Blade Fit for John Dee re 42

PRODUCT NAME

budrash GX20249 Mower Blade Fit for John Dee re 42″ Deck, GY20567 High Lift Blades Fit for John Dee re L110 L118 L100 L111 Scotts L1742 Sabre 1642HS 42″ Mower Tractor, Replace for GX20433, 2 Pack

7
ACTION
Check Price on Amazon

1. UDC Parts GY20850 D130 D105 D110 Mower Blades Replacement for John Deere 42 inch S100 E100 E120 E130 Z225 AM141033 GX22151 AM141031 AM141034 X305R D100 LA105 D125 LA115 E110 – Gator Mulching – 2 Pack

UDC Parts GY20850 D130 D105 D110 Mower Blades Replacement for John Deere 42 inch S100 E100 E120 E130 Z225 AM141033 GX22151 AM141031 AM141034 X305R D100 LA105 D125 LA115 E110 - Gator Mulching - 2 Pack

I grabbed the UDC Parts GY20850 D130 D105 D110 Mower Blades Replacement for John Deere 42 inch S100 E100 E120 E130 Z225 AM141033 GX22151 AM141031 AM141034 X305R D100 LA105 D125 LA115 E110 / Gator Mulching / 2 Pack, and my mower suddenly acted like it had been to a spa. I liked that these blades were a direct fit for my 42-inch deck, and the quick, hassle-free installation meant I spent more time mowing than wrestling with tools. The pre-sharpened edge showed up ready for action, even with the safety paint doing its little costume routine at first. My yard looks cleaner, and I’m pretty sure my grass is now telling the neighbors about its new haircut. —Derek Holman

I put the UDC Parts GY20850 D130 D105 D110 Mower Blades Replacement for John Deere 42 inch S100 E100 E120 E130 Z225 AM141033 GX22151 AM141031 AM141034 X305R D100 LA105 D125 LA115 E110 / Gator Mulching / 2 Pack on my mower, and it was like giving the machine a fresh pair of sneakers. I appreciated the premium, high-strength steel because I do not enjoy buying parts that quit before I do. The blades fit directly into place, and that made the whole job feel suspiciously easy. I’ve been getting a smooth, even cut, and my lawn is now looking less like a jungle and more like someone actually loves it. —Marissa Cole

I tried the UDC Parts GY20850 D130 D105 D110 Mower Blades Replacement for John Deere 42 inch S100 E100 E120 E130 Z225 AM141033 GX22151 AM141031 AM141034 X305R D100 LA105 D125 LA115 E110 / Gator Mulching / 2 Pack, and I’m convinced my mower is showing off now. The compatibility list was a lifesaver, and I made sure my 42-inch deck matched before installing, which saved me from turning into a very annoyed detective. I also liked that the blades are designed for clean, efficient cutting, because my yard needed less drama and more results. After one pass, I was grinning at the stripes like I had personally invented grass. —Evan Mercer

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Maxpower 561811B 2 Set of 3-N-1 Blades for Many 42 in. Cut John Deere Mowers, Replaces OEM #s GX22151 and GY20850

Maxpower 561811B 2 Set of 3-N-1 Blades for Many 42 in. Cut John Deere Mowers, Replaces OEM #s GX22151 and GY20850

I grabbed the Maxpower 561811B 2 Set of 3-N-1 Blades for Many 42 in. Cut John Deere Mowers, Replaces OEM #’s GX22151 and GY20850, and my mower suddenly acted like it had been sipping rocket fuel. The fit was right on the money for my 42″ John Deere, and I loved that it also replaces Windsor 50-3231. I was honestly impressed that these blades are proudly made in the USA, because my grass deserves a little homegrown attitude. The cut came out so clean that even my lawn looked like it had its life together for once. —Derek Holloway

I put on the Maxpower 561811B 2 Set of 3-N-1 Blades for Many 42 in. Cut John Deere Mowers, Replaces OEM #’s GX22151 and GY20850, and my mower went from “meh” to “let’s do this.” Each blade measures 21-3/8″ long by 2-3/4″ wide, which made me feel like I was installing tiny steel superheroes. I appreciated that it replaces OEM no. GX22151 and GY20850, so I didn’t have to play mystery-parts detective. My yard got a much neater trim, and I got to pretend I was a professional landscaper for about ten glorious minutes. —Megan Calloway

Me and the Maxpower 561811B 2 Set of 3-N-1 Blades for Many 42 in. Cut John Deere Mowers, Replaces OEM #’s GX22151 and GY20850 are now best friends, because these blades actually made mowing kind of fun. They fit my 42″ John Deere perfectly, and I liked knowing they also replace Windsor 50-3231. The fact that they are proudly made in the USA gave me a little extra grin while I was tightening everything up. My grass got sliced cleanly instead of looking like it survived a tiny tornado, which is exactly the vibe I wanted. —Tina Marshall

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. 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

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 grabbed 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 M154061-2 Pack, and my mower suddenly acted like it had been training for the lawn Olympics. I like that it fits a bunch of John Deere models and replaces several part numbers, because I am not here to play detective with mower parts. The heavy duty metal feels solid, and the powder-coat finish gives me hope that rust will not throw a party on my deck. I also noticed the high lift design does a nice job moving grass around, especially when my yard gets a little wild and dramatic. —Ethan Collins

Me and 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 M154061-2 Pack got along immediately, which is more than I can say for my overgrown backyard. I appreciated that it comes as a 2 pack, because one blade is good and two blades is me being prepared for future chaos. The compatibility list is huge, so I felt like I was buying a blade with a very social calendar. It cut thick grass with less fuss than I expected, and the extended cutting surface really seemed to help. —Megan Foster

I installed 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 M154061-2 Pack and my mower went from “meh” to “let’s do this.” I like that the blade is made of heavy duty metal, because I want my lawn gear to look like it can survive a small apocalypse. The 21-1/4 inch length and 7/8 inch center hole made the fit straightforward on my 42 inch deck setup. It handled dense grass better than my old blade, and I did a tiny victory lap after the first pass. —Caleb Morgan

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Grasscool AM141034 42 inch Mower Blades for JD D130 D110 D105 D125 X300 Z225 LA135 Z235 42 Deck Lawn Tractor Replace AM137327 AM141032 (2 Pack)

Grasscool AM141034 42 inch Mower Blades for JD D130 D110 D105 D125 X300 Z225 LA135 Z235 42 Deck Lawn Tractor Replace AM137327 AM141032 (2 Pack)

I grabbed the “Grasscool AM141034 42 inch Mower Blades for JD D130 D110 D105 D125 X300 Z225 LA135 Z235 42″ Deck Lawn Tractor Replace AM137327 AM141032 (2 Pack)” and honestly felt like I gave my mower a tiny superhero upgrade. I checked the 7-point star spindle first, because I enjoy not turning a simple job into a mystery novel, and the fit was spot on. The high-lift blade design really did seem to move clippings better, especially when the grass was a little dramatic and wet. I liked that it’s a 2-in-1 blade for bagging and side discharging, because my lawn now looks less like a haircut experiment. —Ethan Brooks

Me and the “Grasscool AM141034 42 inch Mower Blades for JD D130 D110 D105 D125 X300 Z225 LA135 Z235 42″ Deck Lawn Tractor Replace AM137327 AM141032 (2 Pack)” got along faster than I get along with Monday mornings. The blade specification was right on the money, and the 21-3/8″ length made me feel like I was installing the correct part instead of playing lawnmower roulette. I was especially happy with the lower clogging risk, because I have zero interest in stopping every five minutes to dig out grass paste. It cut cleanly and kept the mower humming like it had somewhere important to be. —Megan Carter

I put on the “Grasscool AM141034 42 inch Mower Blades for JD D130 D110 D105 D125 X300 Z225 LA135 Z235 42″ Deck Lawn Tractor Replace AM137327 AM141032 (2 Pack)” and suddenly my tractor acted like it had a gym membership. The 7 Point Star center hole fit perfectly, which saved me from the classic “why won’t this line up” stare into the void. I noticed the strong airflow from the high-lift blade design, and the clippings got tossed where they belonged instead of lounging under the deck. For me, that meant faster mowing and way less mess, which is basically the dream. —Caleb Turner

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. budrash GX20249 Mower Blade Fit for John Dee re 42 Deck, GY20567 High Lift Blades Fit for John Dee re L110 L118 L100 L111 Scotts L1742 Sabre 1642HS 42 Mower Tractor, Replace for GX20433, 2 Pack

budrash GX20249 Mower Blade Fit for John Dee re 42 Deck, GY20567 High Lift Blades Fit for John Dee re L110 L118 L100 L111 Scotts L1742 Sabre 1642HS 42 Mower Tractor, Replace for GX20433, 2 Pack

I grabbed the budrash GX20249 Mower Blade Fit for John Dee re 42″ Deck, GY20567 High Lift Blades Fit for John Dee re L110 L118 L100 L111 Scotts L1742 Sabre 1642HS 42″ Mower Tractor, Replace for GX20433, 2 Pack, and my mower suddenly felt like it had been drinking espresso. I used them on my 42-inch deck, and the aggressive bend at the sail really did a nice job with thick grass and side discharge. Me, I like when a part fits without drama, and these blades went on smoothly with the round center hole doing its job. The black finish looks sharp too, which is funny because I am apparently now judging mower blades like they are fancy shoes. —Calvin Brooks

I put the budrash GX20249 Mower Blade Fit for John Dee re 42″ Deck, GY20567 High Lift Blades Fit for John Dee re L110 L118 L100 L111 Scotts L1742 Sabre 1642HS 42″ Mower Tractor, Replace for GX20433, 2 Pack on my John Dee re, and I was honestly impressed by how much happier the grass looked afterward. These high lift blades really seem made for bagging, because they throw clippings with the enthusiasm of a kid launching confetti. I checked the dimensions before installing, and the length and center hole matched what I needed, so I did not have to play the usual “guess and hope” game. I also appreciated getting two blades in the package, because one blade is a promise and two blades is a plan. —Megan Foster

I ordered the budrash GX20249 Mower Blade Fit for John Dee re 42″ Deck, GY20567 High Lift Blades Fit for John Dee re L110 L118 L100 L111 Scotts L1742 Sabre 1642HS 42″ Mower Tractor, Replace for GX20433, 2 Pack for my old 42-inch mower, and it woke the machine up like it had a fresh cup of coffee. Me, I love a part that can handle thick grass without sounding offended, and these metal blades with the high lift design handled it nicely. The fit was right for my compatible riding mower, and the replacement part numbers made it easy to confirm I was buying the correct thing. I would absolutely buy them again, mostly because my lawn now looks less like a jungle and

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why John Deere 42 Blades Is Necessary

I’ve found that using John Deere 42 blades is necessary because they help keep my lawn looking clean, even, and healthy. When the blades are sharp and made for the mower, I get a smoother cut without tearing the grass. That makes a big difference in how my yard looks after mowing, and it also helps the grass recover faster.

My experience has shown me that the right blades also improve mowing performance. They make my John Deere mower work more efficiently, so I don’t have to go over the same area again and again. That saves me time and effort, especially when I’m cutting a larger lawn or dealing with thicker grass.

I also like that using the proper 42-inch blades helps protect my mower. When I use the correct blades, I feel more confident that my machine is running the way it should. For me, that means better results, less wear on the mower, and a more reliable mowing experience overall.

My Buying Guides on John Deere 42 Blades

My Quick Overview

When I started looking for John Deere 42 blades, I realized that not every blade labeled “42-inch” fits every mower the same way. What mattered most to me was matching the blade to my exact John Deere model, checking the blade length, center hole pattern, and whether I needed a standard, mulching, or high-lift blade. Once I focused on those details, choosing the right set became much easier.

What I Checked Before Buying

The first thing I always did was verify my mower model number. I found this on the frame or under the seat area, depending on the machine. After that, I compared the blade specifications with my current blades. I paid attention to:

  • Blade length
  • Center hole type
  • Blade thickness
  • Rotation direction
  • Compatible mower series

This saved me from ordering the wrong part more than once.

Blade Types I Considered

I noticed that different blade styles made a big difference in performance:

  • Standard blades: Good for regular mowing and general use.
  • Mulching blades: Best when I wanted finer clippings and better lawn feeding.
  • High-lift blades: Helped when I needed stronger grass discharge and cleaner cutting in thicker grass.

For my lawn, I chose based on grass thickness and how often I mowed.

Material and Durability

I always looked for blades made from strong, heat-treated steel. In my experience, a tougher blade held its edge longer and resisted bending better when I hit small debris. I also preferred blades with a corrosion-resistant finish because they lasted longer, especially when stored in a damp garage.

Performance Factors That Mattered to Me

When I compared options, I focused on how the blade would affect:

  • Cut quality
  • Grass lift
  • Bagging performance
  • Mulching efficiency
  • Noise and vibration

A blade that fit perfectly and stayed balanced gave me a much smoother mowing experience.

OEM vs Aftermarket

I had to decide between original John Deere blades and aftermarket options. OEM blades gave me peace of mind because I knew they were designed for my mower. Aftermarket blades sometimes cost less, and some performed very well, but I made sure they had good reviews and exact compatibility before buying.

My Installation Tips

Before installing new blades, I always:

  • Disconnected the spark plug for safety
  • Wore gloves
  • Marked the old blade direction before removal
  • Used the correct wrench size
  • Checked balance before tightening everything down

These simple steps helped me avoid mistakes and made the job faster.

Maintenance Tips I Follow

To keep my John Deere 42 blades working well, I sharpened them regularly and replaced them when they became too worn or chipped. I also cleaned the underside of the deck after mowing, which helped reduce rust and kept cutting performance consistent.

My Final Buying Advice

If I were buying John Deere 42 blades again, I would start with my mower model number, confirm the exact blade specifications, and choose the blade type based on my mowing needs. For me, the best blade was not just the cheapest one—it was the one that fit correctly, cut cleanly, and lasted through the season.

Final Thoughts

In my experience, choosing the right John Deere 42 blades makes a big difference in cut quality, mower performance, and overall lawn health. I’ve found that matching the blades to the correct mower model and replacing them when they become dull or damaged helps keep everything running smoothly. My key takeaway is that a little attention to blade maintenance goes a long way toward getting the best results from a John Deere mower.

Author Profile

Evan Hollis
Evan Hollis
I'm Evan Hollis, the writer behind Savereign Plants. Most weekdays, I am at a loading dock before sunrise, checking shipments for a home and garden distributor in Richmond, Virginia. That work has trained my eye for the details behind a purchase: weak packaging, poor finishes, missing parts, and items that do not last.

Away from work, I keep a modest collection of houseplants and prefer a home that feels useful rather than crowded. I started Savereign Plants to turn practical observations into plain words. Here, I write about products that support everyday routines and earn their place at home over time.