---
product_id: 76398506
title: "John Deere Origingal Equipment GY20850 42\" 3-in-1 Mower Blades"
brand: "john deere"
price: "$291"
currency: NZD
in_stock: true
reviews_count: 6
category: "John Deere"
url: https://www.desertcart.nz/products/76398506-john-deere-origingal-equipment-gy20850-42-3-in-1-mower
store_origin: NZ
region: New Zealand
---

# 42-inch 3-in-1 cutting Easy installation OEM precision fit John Deere Origingal Equipment GY20850 42" 3-in-1 Mower Blades

**Brand:** john deere
**Price:** $291
**Availability:** ✅ In Stock

## Summary

> 🌱 Cut above the rest—upgrade your mower with John Deere’s precision blades!

## Quick Answers

- **What is this?** John Deere Origingal Equipment GY20850 42" 3-in-1 Mower Blades by john deere
- **How much does it cost?** $291 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/76398506-john-deere-origingal-equipment-gy20850-42-3-in-1-mower)

## Best For

- john deere enthusiasts

## Why This Product

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

## Key Features

- • **3-in-1 Versatility:** Mulch, bag, or side-discharge with one blade set—maximize your lawn care options effortlessly.
- • **Universal 42-Inch Fit:** Perfectly designed for a wide range of John Deere mowers and tractors, ensuring seamless integration.
- • **Fast & Easy Installation:** Get back to your lawn in no time with blades that fit like a glove and install in minutes.
- • **Durable Steel Construction:** Built tough to withstand rigorous mowing seasons, delivering long-lasting sharpness and reliability.
- • **Genuine John Deere Quality:** Engineered to OEM specs for flawless mower compatibility and peak performance.

## Overview

The John Deere GY20850 42" 3-in-1 Mower Blades are OEM steel blades designed for a wide range of John Deere mowers and tractors. Offering 3-in-1 functionality—mulching, bagging, and side-discharge—these durable blades ensure efficient, versatile lawn care with easy installation and guaranteed compatibility.

## Description

Great tools at a great price

Review: Great product - Great product Genuine John Deere part and easy to fit and delivered in two day very pleased.
Review: Tutto perfetto!!! Venditore Top!!! Lame originali, pertanto super!!!!

## Features

- OEM John Deere Part Number: GY20850
- Fits Mowers/Tractors: 102, 105, 115, 125, 135
- Fits Mowers/Tractors: LA100(42in), LA105(42in),LA110(42in), LA115(42in), LA120(42in), LA125(42in), LA135(42in)
- Fits Mowers/Tractors: D100, D105, D110, D120, D125, D130, X125, X145

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003R2FH0G |
| Best Sellers Rank | 146,484 in Garden ( See Top 100 in Garden ) 724 in Lawn Mower Blades |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,427) |
| Date First Available | 1 Sept. 2014 |
| Item model number | GY20850 |
| Manufacturer | John Deere |
| Material type | Steel |
| Part number | GY20850 |
| Power source type | gasoline-powered |
| Product Dimensions | 25.4 x 25.4 x 25.4 cm; 453.59 g |

## Images

![John Deere Origingal Equipment GY20850 42" 3-in-1 Mower Blades - Image 1](https://m.media-amazon.com/images/I/21CvBf3jG3L.jpg)
![John Deere Origingal Equipment GY20850 42" 3-in-1 Mower Blades - Image 2](https://m.media-amazon.com/images/I/21KVzpmRP6L.jpg)
![John Deere Origingal Equipment GY20850 42" 3-in-1 Mower Blades - Image 3](https://m.media-amazon.com/images/I/21a8sPG9KzL.jpg)
![John Deere Origingal Equipment GY20850 42" 3-in-1 Mower Blades - Image 4](https://m.media-amazon.com/images/I/41ipwjCeyTL.jpg)
![John Deere Origingal Equipment GY20850 42" 3-in-1 Mower Blades - Image 5](https://m.media-amazon.com/images/I/51nrksrmTwL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by W***S on 21 April 2024*

Great product Genuine John Deere part and easy to fit and delivered in two day very pleased.

### ⭐⭐⭐⭐⭐ Review
*by C***N on 16 May 2023*

Tutto perfetto!!! Venditore Top!!! Lame originali, pertanto super!!!!

### ⭐⭐⭐⭐⭐ Review
*by B***2 on 13 September 2025*

Worked well. Interesting that the old, worn out blades someone lost over 1" on either end. but the new ones are fine.

## Frequently Bought Together

- John Deere Original Equipment Mower Blade Kit #GY20850
- Genuine OEM Home Maintenance Service Kit John Deere D 100 105 110 Tractor LG266
- John Deere Original Equipment Flat Belt - GX20072

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-26*