Rotary Copperhead Mulching Mower Blades
Best mulching upgrade for John Deere 42-inch mower deck owners.
Enhance your lawn care with these Rotary Copperhead Mulching Mower Blades, precision-engineered for John Deere D100 and LA100 series mowers. Designed for effective mulching, these blades ensure a clean cut and healthy lawn. Sold in a convenient two-pack, they are ideal for 42-inch mower decks and serve as direct replacements for multiple OEM part numbers, including GX22151 and GY20850. The durable Copperhead coating provides lasting performance, making yard maintenance efficient and reliable.
$35.95
Owner Satisfaction
4.7
/ 5
Category Rank
4
/ 335
#4 in Lawn Mower Blades
Price vs Category Average
-22%
Below average
Brand
Rotary
/ Rotary
Who it's for
- Equipment owners looking for widely available, versatile blade options
- Homeowners seeking a nutrient-rich, manicured lawn appearance
- Budget-conscious owners needing durable, long-lasting replacement parts
Who should skip it
- Gardeners who prefer bagging clippings over mulching them
- Owners of lower-horsepower mowers concerned about engine longevity
- Users sensitive to loud equipment noise during yard work
Performance breakdown
Mulching Efficiency
High-lift design creates superior airflow for finely shredded grass clippings.
Durability
Copperhead coating provides a robust shield against rust and premature wear.
Installation Ease
Direct OEM replacement ensures a seamless fit for John Deere decks.
Cutting Precision
Engineered for a clean, consistent finish across standard residential lawn types.
Compatibility Range
Versatile design covers multiple John Deere part numbers for broad utility.
Value Density
Two-pack configuration offers a complete deck refresh at an efficient price.
Key Specs
Brand
Rotary
Blade Type
Mulching
Compatible Deck Size
42 inches
Quantity
2 Pack
Replaces OEM
AM137328, AM141033, GX22151, GY20850
Compatible Brands
John Deere
Package Dimensions
21.7 x 3.8 x 2.0 inches
Cutting Style
Mulching
Features
- Optimized for effective mulching
- Direct fit for John Deere models
- Convenient two-blade pack
- Replaces multiple OEM parts
- Durable Copperhead coating
- Designed for 42-inch decks
- High lift cutting edge
What customers say
Customers highly value the Rotary Copperhead Mulching Mower Blades, viewing them as a significant upgrade over standard options. The core praise focuses on exceptional mulching performance, producing finer clippings that enrich the soil and result in healthier turf. This superior action often eliminates the need for bagging. Durability is another key strength; the heavy-duty construction offers a longer lifespan and better resistance to damage. Users appreciate that the blades maintain a sharp edge longer than many alternatives. While fitment is generally excellent, minor balancing issues are occasionally reported. Overall, these blades deliver professional grade results, offering outstanding value and positioning them as a reliable, high performance choice for dedicated users.
Know before you buy
These blades are specifically engineered for the D100 and LA100 series mowers. While they fit many 42-inch decks, you should verify your specific mower model against the OEM part numbers provided, such as GX22151 or GY20850, to ensure a perfect match.
The Copperhead coating is a specialized finish designed to resist rust and corrosion. This helps the blades maintain their edge and structural integrity longer, even when exposed to the moisture found in grass clippings.
No, this product comes as a convenient two-pack, which is exactly what you need for a standard 42-inch mower deck. You will have everything required for a full blade replacement in one box.
These blades feature a high-lift cutting edge specifically designed to circulate clippings within the deck for finer mulching. They are optimized to return nutrients to your lawn rather than just discharging the grass.
While these are designed for mulching, they can be used for side-discharging. However, their high-lift design is optimized for keeping clippings suspended for finer cutting, so you may notice a different discharge pattern compared to standard flat blades.
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$36