Choosing the best lawn mulching blades is essential for maintaining a lush, healthy lawn while reducing yard cleanup.
Mulching blades finely chop grass clippings, allowing them to decompose quickly and return valuable nutrients to the soil.
Whether you own a walk-behind mower, riding mower, or cordless model, selecting the right mulching blade compatible with your equipment boosts mowing efficiency and lawn health.
In this guide, we review top mulching blades from trusted brands like Maxpower, Gator, Oregon, and MTD, highlighting their features, compatibility, and benefits to help you find the perfect blade for your mower and lawn care needs.
1. Maxpower 331528B Mulching Blade
The MaxPower 331528S Mulching Blade is a commercial-grade replacement blade designed for 21-inch cut lawn mowers from brands such as MTD, Cub Cadet, Troy-Bilt, and Craftsman.
It replaces OEM blade numbers including 742-0741, 942-0741, 742-04100, 742-0741A, and 942-0741A.
The blade measures 21 inches in length and 2-1/4 inches in width, featuring a bow tie center hole pattern for compatibility with various mower models.
Manufactured in the USA, it meets or exceeds OEM specifications, providing reliable mulching performance by finely chopping grass clippings to nourish your lawn.
Best for: Owners of 21-inch cut MTD, Cub Cadet, Troy-Bilt, or Craftsman mowers who need a durable, OEM-compatible mulching blade replacement.
Pros:
- Fits many 21-inch mowers from MTD, Cub Cadet, Troy-Bilt, and Craftsman
- Replaces multiple OEM blade numbers for easy compatibility
- Made in the USA with commercial-grade quality
- Designed for effective mulching to improve lawn health
- Bow tie center hole design ensures secure fit
Cons:
- Compatibility should be double-checked with mower’s OEM blade number
- May require proper installation tools and care to ensure fit
- Some users note fit issues if washers or adapters are not used correctly
2. Gator Mulching Blades 942-0616A
The UDC Parts Craftsman 742-0616B / 942-0616B Mulching Blade is a direct replacement blade compatible with a wide range of lawn mower brands and models including Craftsman, Cub Cadet, Troy-Bilt, MTD, and others.
It is designed as a mulching blade that finely chops grass clippings to nourish the lawn. This blade typically measures about 21 1/4 inches in length and 3 inches in width, made from durable steel with a 6-point star center hole for secure mounting.
Compatibility:
- Fits many models from Craftsman (e.g., LT-1040, RZT-42, XT1-LT42), Cub Cadet, Troy-Bilt, MTD, Huskee, and more.
- Cross-references OEM part numbers such as 742-0616, 742-0616A, 942-04126, 742-04126, 942-04087, and 742-0616B.
- Suitable for various riding mowers and zero-turn mowers with 42-inch decks and similar sizes.
Pros:
- Wide compatibility with multiple mower brands and models
- Durable steel construction designed for mulching performance
- Helps improve lawn health by finely chopping clippings
- OEM replacement ensuring proper fit and function
Cons:
- Must verify model compatibility carefully before purchase
- Installation may require proper tools and safety precautions
3. EGO Power+ AB2100 21-Inch Lawn Mower Blade
The EGO Power+ LM2100SP is a 21-inch self-propelled cordless lawn mower that delivers the power and torque of a gas mower without the noise, fumes, or maintenance.
It runs up to 60 minutes on a single charge when used with the recommended 56V 7.5Ah ARC Lithium™ battery (sold separately).
The mower features variable speed self-propulsion adjustable from 0.9 to 3.1 MPH, and six cutting height positions ranging from 1.5 to 4 inches, all adjustable with one hand.
This mower offers three-in-one functionality: mulching, bagging, and side discharge, with an easy-access two-bushel grass collection bag included.
It also includes bright LED headlights for visibility at dawn or dusk and folds flat for compact storage.
The mower is IPX4-rated for weather resistance and compatible with all EGO 56V ARC Lithium™ batteries. It comes with a 5-year limited tool warranty.
Best for: Homeowners seeking a powerful, quiet, and eco-friendly cordless mower with self-propelled convenience, versatile cutting options, and long battery runtime for medium to large lawns.
Pros:
- Gas mower power without emissions or noise
- Long runtime with high-capacity battery
- Easy height adjustment and variable speed control
- LED lights for extended mowing hours
- Compact folding design for storage
- Durable, weather-resistant build
Cons:
- Battery and charger sold separately
- Higher upfront cost compared to gas mowers without battery included
4. Oregon OEP 598-631 Mulching Blade
The Oregon Gator G3 21-Inch Lawn Mower Blade (model 98-631) is a high-quality mulching blade designed to fit many 21-inch deck lawn mowers, including brands like Husqvarna, Craftsman, MTD, Cub Cadet, and Troy-Bilt.
It features Oregon’s patented Tooth-Twist design, which improves mulching performance by keeping grass clippings centered for multiple re-cuts, resulting in finer mulch and better lawn health.
Pros:
- Superior mulching performance with patented Tooth-Twist technology
- Fits many popular mower brands and models
- Durable and reliable steel blade
- Helps maintain a healthier lawn by finely chopping clippings
Cons:
- Must verify compatibility with your specific mower model before purchase
- Blade sharpening may be needed over time to maintain cutting efficiency
5. MTD Genuine Parts (942-0741A) Replacement Part Mulching Blade
The MTD 942-0741A Mulching Blade is a genuine OEM replacement blade designed for 21-inch cutting decks on walk-behind, push, and self-propelled mowers.
It features a bow tie center hole pattern and is specifically engineered for mulching, finely chopping grass clippings to return nutrients to the lawn and promote healthier turf.
This blade fits a wide range of mower models from brands such as MTD, Craftsman, Cub Cadet, Troy-Bilt, and White Outdoor.
Best for: Homeowners and landscapers who need a durable, reliable mulching blade replacement for 21-inch deck mowers to improve grass clipping recycling and lawn health.
Pros:
- OEM quality ensures perfect fit and reliable performance
- Designed for effective mulching to finely cut grass clippings
- Compatible with many popular mower brands and models
- Durable steel construction for long-lasting use
- Helps reduce the need for raking or bagging clippings
Cons:
- Requires proper installation tools and care to ensure secure fit
- Mulching blades may require more mower horsepower than standard blades
- Must verify mower model compatibility before purchase
6. Grasscool 134149 Mulching Blades
The Grasscool 532134149 Mulching Blade is a replacement blade designed for 42-inch cutting decks on riding lawn mowers from brands such as Craftsman, Husqvarna, Poulan, and Poulan Pro.
It replaces OEM part numbers including 134149, 532134149, and 594892701. The blade measures 21 inches in length and features a 5-point star center hole pattern, engineered to efficiently circulate and finely chop grass clippings for superior mulching performance.
This helps reduce the need for bagging and promotes faster decomposition, enriching the soil and improving lawn health.
Best for: Owners of 42-inch deck riding mowers from Craftsman, Husqvarna, Poulan, and similar brands who need a durable, OEM-compatible mulching blade to enhance grass clipping recycling and lawn nourishment.
Pros:
- Patented design improves mulching by recutting clippings multiple times
- Compatible with a wide range of popular 42-inch deck mower models
- Durable steel construction for long-lasting use
- Helps reduce lawn cleanup by minimizing bagging needs
- Promotes healthier lawn through natural fertilization
Cons:
- Must verify mower model compatibility before purchase
- Installation requires proper tools and safety precautions
- Blade sharpening may be needed over time to maintain cutting efficiency
7. KOFINAM Replacement Lawn Mower Mulching Blades
The KOFINAM Replacement Mulching Blade (model 942-04308-X) is a 2-in-1 mulching and side-discharge blade designed for 42-inch cutting decks on riding mowers.
It fits a wide range of brands including Cub Cadet, MTD, Troy-Bilt, Craftsman, Huskee, and others.
The blade measures approximately 21.23 inches in length and features a star-shaped center hole pattern for secure mounting.
It is engineered to provide smooth cutting without clumping or clogging, allowing efficient mulching and side discharge of grass clippings.
Best for: Owners of 42-inch deck riding mowers from Cub Cadet, MTD, Troy-Bilt, Craftsman, and similar brands who want a durable, OEM-compatible blade that offers both mulching and side discharge functionality.
Pros:
- 2-in-1 design supports mulching and side discharge for versatile lawn care
- Fits many popular 42-inch deck mower models across several brands
- Smooth cutting performance with reduced clumping and clogging
- Durable steel construction for long-lasting use
- OEM-equivalent blade ensures proper fit and function
Cons:
- Must confirm compatibility with specific mower model before purchase
- Installation requires proper tools and safety precautions
- Some shipping delays may occur depending on supplier availability