Comparison: Best 20 Inch Mulching Mower Blade (Updated | Oct 14th)

When maintaining a pristine lawn, choosing the right 20-inch mulching mower blade is essential for efficient grass clippings decomposition and a healthy turf. This comparison explores top options, evaluating durability, cutting performance, and compatibility with popular mower models. We highlight key features like material quality, blade design, and balance to help you make an informed decision. Whether you prioritize precision cutting, longevity, or eco-friendly mulching, this guide provides a balanced overview of the best blades for your landscaping needs. Avoid overwatering, and focus on consistent mowing for optimal results.

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Product Comparison: Best 20 Inch Mulching Mower Blade

Best overall

Maxpower 331980B 20-Inch Universal Gold Metal Mulching Blade,yellow

Maxpower 331980B 20-Inch Universal Gold Metal Mulching Blade,yellow

Maxpower
  • Includes (1) 20 in. universal gold metal commercial mulching blade
  • Measures 20 in. L x 2-1/4 in. W with a 1 in. center hole diameter
  • Includes a cover washer and 6 reducing washers in the following sizes: 3/8 in., 7/16 in., 9/16 in., 1/2 in., 5/8 in., and 3/16 in.
  • Fits MOST 20" cut mowers
  • Recommended for gas powered mowers – not battery powered or electric mowers

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Best budget

Lawn Mower High Lift Mulching Blade for 20 inch Cutting Decks for MTD Columbia Yard Machines Cub Cadet Walk Behind 942-0640 742-0640

Lawn Mower High Lift Mulching Blade for 20 inch Cutting Decks for MTD Columbia Yard Machines Cub Cadet Walk Behind 942-0640 742-0640

Cancanle
  • Package including:1 blade
  • Length: 20 inches, Width: 2 1/8 inches
  • Thickness: 0.118 inches
  • Center Hole: 1 x 3/4 inches
  • For Deck Size: 20 inches

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Brand-specific fit

EGO POWER+ 20" Blade for Electric Lawn Mowers LM2022SP/LM2020SP/LM2021 – AB2000

EGO POWER+ 20" Blade for Electric Lawn Mowers LM2022SP/LM2020SP/LM2021 - AB2000

EGO Power+
  • 3-In-1 mower blade for mulching, bagging and side discharging
  • Designed specifically for EGO power+ mower Model LM2000 and LM2001
  • Delivers a clean cut to promote lawn health
  • Sharpened steel blade for excellent cutting performance

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Durable steel

Greenworks Replacement Lawn Mower Blade (Fits : 20' Mower / 25022 / 25222)

Greenworks Replacement Lawn Mower Blade (Fits : 20' Mower / 25022 / 25222)

Greenworks
  • Compatibility: These lawn mower blades are exclusively designed to fit Greenworks 20-inch and 21-inch corded mowers, specifically models 25022 and 25112.
  • Accurate Size: The actual length of each blade is precisely 19.69 inches, ensuring a perfect fit and optimal performance for the compatible mower models.
  • Material Quality: Each blade is forged from a single piece of steel, offering excellent durability and a longer lifespan compared to multi-component blades.
  • Durability: The one-piece steel construction ensures that the blades are exceptionally durable and resistant to wear and tear, making them a reliable choice for regular lawn maintenance.
  • Efficient Cutting: These blades are designed for efficient cutting, providing a clean and even cut across the lawn, enhancing the mower's overall performance and efficiency.

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MTD replacement

Rotary 6438. Blade MTD 20" Mulching replaces MTD 942-0740

Rotary 6438. Blade MTD 20" Mulching replaces MTD 942-0740

Rotary
  • Replaces: MTD: 942-0740
  • Mulching Blade
  • Center hole is square with points in the corners.
  • LENGTH 20", WIDTH 2-1/4"

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Universal compatibility

HERO® Mulching Mower Blade Universal Fit with 20 inch Deck 1 inch Center Hole with Washers Included Universal Applications

HERO® Mulching Mower Blade Universal Fit with 20 inch Deck 1 inch Center Hole with Washers Included Universal Applications

HERO
  • Precision Cutting Performance: Enhance your lawn care experience with our top-tier HERO lawn mower blade replacement, renowned for its precision cutting performance. Designed to optimize efficiency, this blade guarantees a uniform and neat cut on every occasion.
  • Compatibility Across Brands: This HERO lawn mower blade is Universal and is engineered to fit a wide range of Riding Mowers & Zero-Turn Mowers with a 20 inch deck and 1 inch center hole for installation, washers are included!
  • Cross Reference: This HERO lawn mower blade serves as an ideal substitute for the following OEM part numbers: Universal Fit
  • Enhanced Lawn Health: Maintain a lush and healthy lawn effortlessly. Our HERO Mulching blade replacement, engineered for 20 inch decks, features a specialized design leading to a healthier and more vibrant yard.
  • Versatile Compatibility: Engineered to last, our HERO Mulching blade replacement is designed to fit 20 inch decks with a 1 inch center hole for mounting. It seamlessly integrates with a variety of leading manufacturers models, catering to both Riding Mowers and Zero-Turn Mowers, ensuring a durable solution that enhances your lawn care experience.

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Premium quality

Oregon Universal Replacement Lawnmower Blade, 20", Mulching Gator G3 (69-260)

Oregon Universal Replacement Lawnmower Blade, 20", Mulching Gator G3 (69-260)

Oregon
  • 1 x straight mower blade included; Center Hole: 1 inch, round; Blade Length: 19-3/4 inches
  • Long-lasting and heavy-duty replacement mower blade, with superior cutting edge for enhanced mulching, fits many residential and commercial mowers
  • Oregon mower blades are premium replacement parts, built to fit your your original brand of equipment, offering superior design and outstanding performance
  • 26-point certification of unparalleled manufacturing quality and control standards for the highest level of safety and durability. Made in the U.S.A. -limited lifetime warranty included

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EGO optimized

Ketofa 2 Pack Lawn Mower Blade AB2000 for EGO Power+ 56V Models LM2022SP/LM2020SP/LM2021 – Single Mulching Mower Blade for 20 Inch Deck – Compatible with 3705369000, 3705369001

Ketofa 2 Pack Lawn Mower Blade AB2000 for EGO Power+ 56V Models LM2022SP/LM2020SP/LM2021 - Single Mulching Mower Blade for 20 Inch Deck - Compatible with 3705369000, 3705369001

Ketofa
  • [Replaces Part Number]- The blade replaces these previous part numbers: 3705369000, 3705369001
  • [Precision Mulching]– Unlock the power of mulching with this precision-engineered blade. Its mulching design finely chops grass clippings, returning valuable nutrients to your lawn. Experience healthier, greener grass that's the envy of the neighborhood
  • With its 3-in-1 functionality, this blade allows you to effortlessly switch between mulching, bagging, and side discharging, giving you the freedom to customize your mowing experience based on your lawn's needs.
  • [Built to Last]- Made from high-quality steel, this mulching lawn mower blade is built to withstand the demands of even the toughest lawn care environments. With a center mounting hole of 11/16" and a 20" lawn mower deck, it seamlessly compatible with EGO Power+ 56V LM2000,LM2001,LM2000E,LM2022SP,LM2020SP,LM2021,LM2011E mower
  • [Non original aftermarket part]– The product is not sponsored or endorsed by,or affiliated with the brands it fit,including EGO power+. Same compatibility and quality as the original

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High lift performance

EGO AB2001 20inch High Lift Mower Blade for EGO 20inch Lawn mowers

EGO AB2001 20inch High Lift Mower Blade for EGO 20inch Lawn mowers

EGO Power+
  • Specifically designed to enhance efficiency when bagging grass clippings
  • The High Lift Blade is not recommended for use with the EGO mulching plug
  • For use with EGO POWER+ 56-Volt Lithium-Ion Cordless Lawn Mowers LM2000-S, LM2020 & LM2020SP models
  • Delivers a clean cut to promote lawn health
  • Genuine EGO parts ensure compatibility, quality and performance

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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Buying Guide

Buying Guide: Best 20 inch mulching mower blade

Compatibility & Fit

  • Verify blade length (20 inches) and center hole size (commonly 1 inch) for your mower deck
  • Check compatibility with your mower brand (e.g., EGO, Greenworks, MTD, or universal fits)
  • Ensure included washers match your mower’s bolt size requirements

Material & Durability

  • Opt for forged steel blades for longer lifespan and resistance to wear
  • Look for reinforced edges or heat-treated steel for consistent sharpness
  • Avoid thin or lightweight blades that may bend or warp under heavy use

Mulching Performance

  • Choose blades with curved or serrated edges for finer grass clippings
  • Prioritize designs that promote airflow to enhance mulching efficiency
  • Check if the blade supports 3-in-1 functionality (mulching, bagging, side-discharge) if needed

Design & Safety

  • Ensure blades have balanced weight distribution to reduce vibration
  • Look for square or rounded center holes that align with your mower’s mounting system
  • Confirm the blade’s thickness (typically 0.1–0.2 inches) for durability without excessive weight

Brand & Warranty

  • Consider OEM or reputable aftermarket brands for guaranteed quality
  • Check for warranties or certifications (e.g., 26-point quality checks, limited lifetime warranties)
  • Avoid unbranded blades that lack performance guarantees

FAQs

Which blade is designed for EGO Power+ electric mowers?

EGO POWER+ AB2000, Ketofa 2 Pack AB2000, and EGO AB2001 are designed for EGO 20-inch models.

Which blade is a universal fit for various 20-inch decks?

Maxpower 331980B, HERO® Mulching Blade, and Oregon Gator G3 are universal fits.

Which blade is recommended for MTD cutting decks?

Rotary 6438 and Lawn Mower High Lift Blade are designed for MTD 20-inch decks.

Which blade is compatible with Greenworks 20-inch mowers?

Greenworks Replacement Blade fits 20-inch models like 25022 and 25222.

Which blade offers a high-lift design for better grass pickup?

Lawn Mower High Lift Blade and EGO AB2001 feature high-lift designs.

Which blade comes in a 2-pack?

Ketofa 2 Pack Lawn Mower Blade is sold as a 2-pack for EGO models.

Which blade has a 1-inch center hole?

HERO® Mulching Blade includes a 1-inch center hole for compatibility.

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