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10 Best John Deere Mulching Blades 2025 in the United States

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Our Top Picks

#1

Winner

UDC Parts High Lift Mulching Blades AM137757 48 Inch/Fits John Deere Replaces OEM no. AM141035, GX21784, GY20852, GX21786 D140 D155 D160 E140 E160 E170 LA130 LA145 Z255 Z355E S140 S160 S170 / 3 Pack

Rating
10.0
Chosen by1,334
Blade Thickness
Blade Material

Most important from
783 reviews

Blade Thickness
These blades are well made and slightly thicker than OEM, which helps them hold an edge longer and withstand hits without twisting.
Blade Material
Heavy duty construction makes these blades better than the original ones, requiring only minor adjustments for a perfect fit.

The UDC Parts High Lift Mulching Blades are designed specifically for John Deere mowers, making them a great choice for those looking to replace their current blades. These blades come in a convenient 3-pack and are compatible with a wide range of John Deere models, including the D140, E160, and S170 series, among others. They are 17 inches long, 2-3/4 inches wide, and have a thickness of 0.160 inches, which ensures a sturdy build.

The blades feature a 7-point star center hole and an air lift of 1-3/16 inches, which helps in achieving a high-quality cut and efficient grass mulching. The blades are also noted for their sharpness and durability, promising precise grass cutting each time. One unique aspect is the pre-sharpened cutting edge, which is painted over for safety during installation but wears off quickly during initial use. This design element indicates a thoughtful approach to user safety.

At a weight of 5.29 pounds and package dimensions of 20 x 3 x 2 inches, these blades are fairly easy to handle and install. In summary, for John Deere owners looking to maintain a pristine lawn, these UDC Parts mulching blades offer a reliable and well-regarded option, with the bonus of fitting multiple models and providing excellent cutting performance.

Rating
10.0
Chosen by1,334
Blade Thickness
Blade Material

Most important from
783 reviews

Blade Thickness
These blades are well made and slightly thicker than OEM, which helps them hold an edge longer and withstand hits without twisting.
Blade Material
Heavy duty construction makes these blades better than the original ones, requiring only minor adjustments for a perfect fit.
#2

UDC Parts Gator Mulching Blades GX22151 42 Inch/Fits John Deere Replaces OEM no. GY20850 AM131033 AM137333 AM141033 50-3231 D100 D110 D125 S100 S130 S240 LA100 LA105 LA120 LA135 E100 E120 E130/2 Pack

Rating
10.0
Blade Length
Blade Thickness

Most important from
783 reviews

Blade Length
Heavy-duty construction makes these blades better than OEM. Despite being a bit longer, the quality of construction is excellent.
Blade Thickness
These blades are well made, slightly thicker than OEM, which helps them hold an edge longer and withstand hits without twisting.

The UDC Parts Gator Mulching Blades GX22151 are designed to fit a wide range of John Deere models, making them highly versatile for many users. With a length of 21-3/8 inches and a width of 2-3/4 inches, these blades are substantial, and their 0.164-inch thickness indicates durability. The 7-point star center hole ensures a secure fit, and the 1-inch air lift helps in efficient grass cutting and mulching.

These blades feature a pre-sharpened cutting edge, which is initially painted over for safety. This paint will wear off during the first use, exposing the sharp edge for effective lawn care. Some might find the blades' weight of 4.89 pounds slightly heavy, which could affect handling during installation. Also, being manufactured in China may raise concerns for those preferring locally-made products.

The UDC Parts Gator Mulching Blades are an excellent choice for John Deere owners looking for reliable, durable, and efficient mulching blades that enhance their lawn care routine.

Rating
10.0
Blade Length
Blade Thickness

Most important from
783 reviews

Blade Length
Heavy-duty construction makes these blades better than OEM. Despite being a bit longer, the quality of construction is excellent.
Blade Thickness
These blades are well made, slightly thicker than OEM, which helps them hold an edge longer and withstand hits without twisting.
#3

John Deere Original Equipment 3 Blades #TCU15881(3)

Rating
9.7
Blade Thickness

Most important from
716 reviews

Blade Thickness
The mower has never cut better with these OEM blades, offering thicker steel and longer-lasting sharpness compared to cheaper aftermarket alternatives.

The John Deere Original Equipment 3 Blades #TCU15881(3) is a reliable choice for your mower if you are looking for high-quality mulching blades. These blades are designed by John Deere, a reputable manufacturer known for durable and efficient lawn care equipment. The blades' length, width, and thickness are optimized to provide efficient cutting and mulching, ensuring a clean and even lawn.

The material used in these blades is sturdy and built to last, which is essential for handling tough mowing tasks over time. The blade design incorporates a specific lift that helps in effective grass cutting and mulching, contributing to a well-manicured lawn. The weight of 6 pounds for the set of blades may be a bit heavy for some users, potentially making installation a bit challenging.

Despite these minor drawbacks, the product is not discontinued and ranks well in both the lawn mower blades category and the broader Patio, Lawn & Garden category, emphasizing its popularity and reliability among users. These blades would be particularly beneficial for homeowners seeking a durable and effective solution for their lawn maintenance needs.

Rating
9.7
Blade Thickness

Most important from
716 reviews

Blade Thickness
The mower has never cut better with these OEM blades, offering thicker steel and longer-lasting sharpness compared to cheaper aftermarket alternatives.

Buying Guide for the Best John Deere Mulching Blades

Choosing the right mulching blades for your John Deere mower is essential for achieving a clean, efficient cut and maintaining a healthy lawn. Mulching blades are designed to finely chop grass clippings and distribute them evenly back onto the lawn, which helps to fertilize the grass and reduce the need for bagging. When selecting mulching blades, consider the specific needs of your lawn and mower to ensure optimal performance.
Blade LengthBlade length is the measurement from one tip of the blade to the other. This spec is important because it must match the size of your mower deck to ensure proper fit and function. Blade lengths typically range from 16 to 22 inches. To choose the right length, check your mower's manual or measure the existing blades. Using the correct length ensures efficient cutting and prevents damage to your mower.
Blade WidthBlade width refers to the distance across the blade from one edge to the other. This spec affects the blade's strength and cutting ability. Common widths range from 2 to 3 inches. Wider blades are generally more durable and can handle tougher mowing conditions, while narrower blades may be more suitable for lighter, more frequent mowing. Consider the type of grass and terrain you have when selecting the blade width.
Blade ThicknessBlade thickness is the measurement of how thick the blade is. Thicker blades are typically more durable and can withstand more wear and tear, making them ideal for rough or uneven terrain. Thinner blades may be lighter and easier to handle but might not last as long under heavy use. Choose a blade thickness that matches the demands of your mowing conditions.
Blade LiftBlade lift refers to the angle and shape of the blade's edges, which create airflow to lift the grass for a cleaner cut. There are low, medium, and high lift blades. Low lift blades are suitable for sandy or dry conditions, medium lift blades are versatile for various conditions, and high lift blades are best for thick, lush grass. Select the blade lift based on your lawn's grass type and mowing conditions.
Blade MaterialBlade material affects the blade's durability and performance. Most mulching blades are made from steel, but the quality and treatment of the steel can vary. High-carbon or heat-treated steel blades are more durable and stay sharp longer. Consider the frequency of mowing and the toughness of your grass when choosing the blade material. Higher quality materials may cost more but can provide better performance and longevity.
Blade DesignBlade design includes the shape and features of the blade, such as serrated edges or curved surfaces, which enhance mulching performance. Different designs can affect how finely the grass is chopped and how evenly it is distributed. Look for designs that match your mowing needs, such as blades with more serrations for finer mulching or curved designs for better grass circulation. Choose a design that aligns with your lawn care goals.

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