---
product_id: 664667134
title: "GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack"
brand: "udc parts"
price: "6063179₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Udc Parts"
url: https://www.desertcart.vn/products/664667134-gy20850-mower-blades-for-john-deere-42-inch-d105-d130
store_origin: VN
region: Vietnam
---

# 7-point star center hole Fits 42" John Deere decks Precision 21.375" length GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack

**Brand:** udc parts
**Price:** 6063179₫
**Availability:** ✅ In Stock

## Summary

> 🌿 Cut Above the Rest: Mow Smarter, Not Harder!

## Quick Answers

- **What is this?** GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack by udc parts
- **How much does it cost?** 6063179₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/664667134-gy20850-mower-blades-for-john-deere-42-inch-d105-d130)

## Best For

- udc parts enthusiasts

## Why This Product

- Trusted udc parts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quiet Power Performance:** Experience a whisper-quiet hum instead of roar, transforming your mowing into a smooth, low-noise operation.
- • **Effortless Compatibility:** Seamlessly replaces multiple John Deere OEM parts for 42" decks, ensuring perfect fit across 100+ mower models.
- • **Superior Mulching Action:** Gator-style blades pulverize grass clippings, eliminating the need for bagging or double mowing—your lawn’s new secret weapon.
- • **Durable High-Strength Steel:** Crafted from premium steel for long-lasting sharpness and stability, even under heavy-duty use.
- • **Quick & Hassle-Free Installation:** Swap blades in minutes with a direct-fit design—get back to a pristine lawn faster than ever.

## Overview

UDC Parts GY20850 mower blades are premium 42-inch replacement blades compatible with a wide range of John Deere riding mowers. Featuring a 7-point star center hole and crafted from high-strength steel, these gator-style mulching blades deliver quiet, efficient cutting and superior mulching performance. Designed for quick installation and long-lasting durability, they transform your mowing experience with cleaner cuts and minimal noise.

## Description

UC21583 GX22151 GY20850 AM141033 AM137333 AM141034 AM141031 M154062 M145970 AM137327 AM141032 AM137329 for john deere 42 inch mower blades 102 105 115 125 135 D100 D105 D110 D120 D125 D130 E100 E110 E120 E130 LA100 LA105 LA110 LA115 LA120 LA125 LA135 S100 S110 S120 S130 X105 X106 X107 X110 X120 X125 X126 X145 X305R Z225 Z235 X300 X304 X310 X500 X520 SST15 SST16 LT160 LT180 S240 JD deck riding lawn mulching parts part gator replaces oem pack 100 series tractor accessories replacement GY 20850. Replaces John Deere 42 Inch OEM Part: UC21583, GX22151, GY20850, AM141033, AM137333, AM141034, AM141031, M154062, M145970, AM137327, AM141032, AM137329 GY20850 John Deere 42 Inch Mower Blades Compatible with 102, 105, 115, 125, 135, D100, D105, D110, D120, D125, D130, E100, E110, E120, E130, LA100, LA105, LA110, LA115, LA120, LA125, LA135 AM141033 John Deere 42 Inch Mower Blades Compatible with S100, S110, S120, S130, X105, X106, X107, X110, X120, X125, X126, X145, X305R, Z225, Z235 GX22151 John Deere 42 Inch Mower Blades Compatible with X300 (Only for 42" X Edge Deck (050001 - ); X304 (Only for 42" X Edge Deck (050001 - ); X310 (Only for 42” Edge Deck); X500 (Only for 42” Edge Deck); X520 (Only for 42” Edge Deck) UC21583 John Deere 42 Inch Mower Blades Compatible with SST15 (Only for 42C Deck); SST16 (Only for 42C Deck); LT160 (Only for 42C Deck); LT180 (Only for 42C Deck); S240 (PC12357, Only for 42C Inch (2/2) (- 880000)). 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Review: Item arrived and with out damage, what can I say, they are mower blades
Review: OMG. What a difference these blades make. I have a 17 Y/O 42” riding mower (picture) and put these blades on it. It’s like going from a chainsaw to mowing with a Rolls. YES, it is that dramatic. I started the mower after changing the blades and immediately noticed the sound difference. I engaged the belt, mowed a few feet and thought the belt had not engaged the blades. So I disengaged, backed up and noticed that the lawn was perfectly cut. I engaged the blades again and listed carefully to the smooth sound coming from the blades. It was a very soft hum. Like a low whisper. The before and after difference is astonishing. The mulching action with these blades completely disintegrate the grass clipping. Forget bagging or re mowing to get rid of the clipping-pile rows. There are no clippings left! Seriously, these Gator style blades work crazy amazing. They fit my 42” deck perfectly, are extremely quiet, ( Hum rather that a roar) lift the grass almos like a vacuum. I will never use another blade again. A couple of caveats, they suck like you are mowing with a vacuum. A sort of “Flowbee” for the lawn. For that reason. Do not run over any objects, like a garden hose because it will destroy it. The second one is it will suck sand/dirt if you run over some. Yes, I recommend them, will buy them again, and would give them as a gift. Absolutely amazing blades! Great product, price, quality, performance, and function at an extremely low noise level. Get them! lol

## Features

- Replaces John Deere 42 Inch OEM Part: UC21583, GX22151, GY20850, AM141033, AM137333, AM141034, AM141031, M154062, M145970, AM137327, AM141032, AM137329
- Dimensions: Length 21-3/8", Width 2-3/4", Thickness 0.164", Center Hole 7 point star, Air Lift 1", Cutting Edge Length 5-7/16", Compatible Deck Size 42". The length of the blade is measured diagonally from one end to the other
- GY20850 John Deere 42 Inch Mower Blades Compatible with 102, 105, 115, 125, 135, D100, D105, D110, D120, D125, D130, E100, E110, E120, E130, LA100, LA105, LA110, LA115, LA120, LA125, LA135
- AM141033 John Deere 42 Inch Mower Blades Compatible with S100, S110, S120, S130, X105, X106, X107, X110, X120, X125, X126, X145, X305R, Z225, Z235
- Important: Parts may differ between different configurations of the same mower model. Please confirm the complete model number to ensure a proper fit.
- GX22151 John Deere 42 Inch Mower Blades Compatible with X300 (Only for 42" X Edge Deck (050001 - ); X304 (Only for 42" X Edge Deck (050001 - ); X310 (Only for 42” Edge Deck); X500 (Only for 42” Edge Deck); X520 (Only for 42” Edge Deck)
- UC21583 John Deere 42 Inch Mower Blades Compatible with SST15 (Only for 42C Deck); SST16 (Only for 42C Deck); LT160 (Only for 42C Deck); LT180 (Only for 42C Deck); S240 (PC12357, Only for 42C Inch (2/2) (- 880000))
- Installation: Designed for quick, hassle-free installation - the blades fit directly into place. Just remove the old blade, secure the new one, and your mower is ready for clean, efficient cutting.
- Sharpness: Each new blade is pre-sharpened but covered with safety paint that wears off during initial operation. For continued peak performance, the blade can be safely resharpened whenever the cutting edge becomes dull.
- Long-Term Durability: Made from premium, high-strength steel that keeps the cutting edge sharp and stable, ensuring long-lasting performance and extended blade life even under heavy use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CPM69616 |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,947) |
| Date First Available | 11 May 2024 |
| Manufacturer | UDC Parts |
| Package Dimensions | 52.7 x 7.62 x 4.44 cm; 2.38 kg |

## Images

![GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack - Image 1](https://m.media-amazon.com/images/I/71oKUF359QL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***Q on 4 July 2024*

Item arrived and with out damage, what can I say, they are mower blades

### ⭐⭐⭐⭐⭐ Review
*by R***T on 5 July 2025*

OMG. What a difference these blades make. I have a 17 Y/O 42” riding mower (picture) and put these blades on it. It’s like going from a chainsaw to mowing with a Rolls. YES, it is that dramatic. I started the mower after changing the blades and immediately noticed the sound difference. I engaged the belt, mowed a few feet and thought the belt had not engaged the blades. So I disengaged, backed up and noticed that the lawn was perfectly cut. I engaged the blades again and listed carefully to the smooth sound coming from the blades. It was a very soft hum. Like a low whisper. The before and after difference is astonishing. The mulching action with these blades completely disintegrate the grass clipping. Forget bagging or re mowing to get rid of the clipping-pile rows. There are no clippings left! Seriously, these Gator style blades work crazy amazing. They fit my 42” deck perfectly, are extremely quiet, ( Hum rather that a roar) lift the grass almos like a vacuum. I will never use another blade again. A couple of caveats, they suck like you are mowing with a vacuum. A sort of “Flowbee” for the lawn. For that reason. Do not run over any objects, like a garden hose because it will destroy it. The second one is it will suck sand/dirt if you run over some. Yes, I recommend them, will buy them again, and would give them as a gift. Absolutely amazing blades! Great product, price, quality, performance, and function at an extremely low noise level. Get them! lol

### ⭐⭐⭐⭐⭐ Review
*by S***H on 3 November 2025*

good quality product, quick and easy purchase and delivery.

## Frequently Bought Together

- UDC Parts GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack
- John Deere L100 and D100 Series 42-inch Deck Mulch Cover GY00115
- John Deere Original Equipment Flat Belt - GX20072

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-04-25*