Choosing the best 21 mulching lawn mower blade is essential for maintaining a healthy and attractive lawn. There are various types, including high-lift and low-lift blades, and the 21 mulching lawn mower blade deliver superior mulching capabilities.
A properly fitted 21 mulching lawn mower blade in 2026 enhances nutrient return to your soil and promotes a greener, more robust turf. Designed to match specific mower deck sizes and engine power, top-rated covers offer efficient mulching and a cleaner cut.
This guide highlights the best 21 mulching lawn mower blade to help you choose the right option for your specific lawn care needs.
10 best 21 mulching lawn mower blade
“Before you buy, carefully consider your mower's make and model. If you need a blade specifically for Troy-Bilt mowers, a Grasscool TB110 is your best bet. If compatibility with a wider range of brands like Craftsman or Husqvarna is your top concern, invest in a Maxpower blade with a universal mounting pattern. Always double-check the product listing for your specific deck size and confirm compatibility with your mower's blade mounting system to avoid installation issues.”
best 21 mulching lawn mower blade Comparison Table
| Product | Best For | Key Strength | Who It’s For | |
|---|---|---|---|---|
| Grasscool 21 mulching lawn mower blade | Best For: Improved Mulching Performance | Key Strength: Wide Troy-Bilt Compatibility | Who It's For: Troy-Bilt Owners | Check Price |
| Maxpower 21 mulching lawn mower blade | Best For: Cleaner Cut & Finer Mulch | Key Strength: Corrosion-Resistant Coating | Who It's For: Lawn Health Focused | Check Price |
| Maxpower 21 mulching lawn mower blade | Best For: Healthier Lawn Mulching | Key Strength: Cost-Effective OEM Alternative | Who It's For: MTD/Cub Cadet Owners | Check Price |
| EGO Power+ 21 mulching lawn mower blade | Best For: Optimal EGO Mulching | Key Strength: Two-Pack Value | Who It's For: EGO Power+ Users | Check Price |
| A ABIGAIL 21 mulching lawn mower blade | Best For: Finely Chopped Clippings | Key Strength: Broad Mower Compatibility | Who It's For: Multi-Brand Owners | Check Price |
| Grasscool 21 mulching lawn mower blade | Best For: Reducing Clumps | Key Strength: Direct Troy-Bilt Replacement | Who It's For: Easy Installers | Check Price |
| Maxpower 21 mulching lawn mower blade | Best For: (Not Specified) | Key Strength: (Not Specified) | Who It's For: (Not Specified) | Check Price |
| Grasscool 21 mulching lawn mower blade | Best For: Nutrient & Moisture Return | Key Strength: Durable High-Strength Steel | Who It's For: Time-Saving Gardeners | Check Price |
| EGO Power+ 21 mulching lawn mower blade | Best For: Eliminates Bagging Need | Key Strength: Perfect EGO Fit | Who It's For: Effort-Conscious Owners | Check Price |
| Chway 21 mulching lawn mower blade | Best For: Natural Lawn Fertilizing | Key Strength: Wide Craftsman/Husqvarna Fit | General Users | Check Price |
1. Grasscool 21 mulching lawn mower blade ā Affordable Pick

If you're looking to give your Troy Bilt lawn mower a serious upgrade in its mulching capabilities, the Grasscool TB110 Mulching Blade is a fantastic option to consider. Designed specifically for a range of 21-inch Troy Bilt walk-behind push mowers, this blade aims to transform your grass clippings into fine mulch, returning valuable nutrients to your lawn. It's an ideal choice for homeowners who want a healthier, greener lawn without the hassle of bagging clippings.
This replacement blade offers a compelling blend of performance and value. By efficiently chopping and re-chopping grass, it helps reduce thatch buildup and promotes a more natural fertilization process. For those seeking to simplify their lawn care routine and improve the overall health of their turf, the Grasscool TB110 presents a straightforward and effective solution that won't break the bank.
Key Specifications
| Feature | Details |
|---|---|
| Blade Length | 21 inches |
| Blade Type | Mulching |
| Compatibility | Troy Bilt 21-inch Mowers (TB240, TB230, TB130, TB200, TB160, TB210, TB280ES, TB320, TB115, TB220) |
| Replaces Part Numbers | 942-0741A, 742-0741A |
| Material | High-strength steel |
| Center Hole | Star-shaped |
| Blade Thickness | Standard |
Reasons to Buy
- Significantly improves mulching performance for a healthier lawn.
- Wide compatibility with numerous Troy Bilt 21-inch mower models.
- Durable construction from high-strength steel for longevity.
- Easy to install, requiring no specialized tools.
- Excellent value for money, offering great performance at an affordable price.
Reasons to Avoid
- Not an OEM part, which may be a concern for some users.
- May require more frequent sharpening than premium, hardened blades in very tough conditions.
2. Maxpower 21 mulching lawn mower blade ā Best Value

If you're looking to achieve a cleaner, healthier lawn with less effort, the Maxpower 331981B 21-Inch Universal Gold Metal Mulching Lawn Mower Blade is a fantastic upgrade for your walk-behind mower. Designed specifically for mulching, this blade excels at finely chopping grass clippings and returning them to your lawn as natural fertilizer, promoting a greener, more vibrant turf. It's an ideal choice for homeowners who want to improve their lawn's appearance and sustainability without the hassle of bagging or raking.
This mulching blade stands out for its durable construction and effective cutting performance, offering a significant improvement over standard blades. Its universal design ensures compatibility with a wide range of 21-inch mowers, making it an accessible and practical solution for many households. By transforming clippings into nutrient-rich mulch, the Maxpower 331981B not only saves you time but also contributes to a healthier lawn ecosystem.
Key Specifications
| Feature | Details |
|---|---|
| Blade Length | 21 inches |
| Blade Type | Mulching |
| Material | High-strength steel |
| Center Hole Diameter | 1 inch (with adapter for 7/16-inch and 3/4-inch) |
| Coating | Gold powder coat for corrosion resistance |
| Compatibility | Fits most 21-inch walk-behind mowers |
| Recommended Use | Residential lawns |
Reasons to Buy
- Significantly improves lawn health by returning nutrients to the soil.
- Achieves a cleaner cut and finer mulching compared to standard blades.
- Durable construction with corrosion-resistant coating for longevity.
- Universal fit design with included adapters simplifies installation.
- Cost-effective way to enhance mower performance and lawn appearance.
Reasons to Avoid
- Not suitable for users who prefer to bag their clippings.
- May require more frequent mowing in very wet or fast-growing conditions to prevent clumping.
3. Maxpower 21 mulching lawn mower blade ā Premium Choice

If you're looking to give your lawn a clean, manicured look while also feeding your grass with essential nutrients, a quality mulching blade is a must-have. The Maxpower 331528B Mulching Blade is designed specifically for 21-inch cut mowers from popular brands like MTD, Cub Cadet, and Troy-Bilt, offering a straightforward upgrade to enhance your mowing experience. This blade aims to transform clippings into fine mulch, promoting a healthier lawn and reducing the need for bagging.
This particular blade stands out for its robust construction and its effectiveness in mulching. It's a cost-effective solution for homeowners who want to improve their lawn's health and appearance without the hassle of dealing with grass clippings. By finely chopping grass, it returns valuable nitrogen and moisture to the soil, contributing to a greener, more vibrant yard.
Key Specifications
| Feature | Details |
|---|---|
| Blade Type | Mulching |
| Blade Length | 21 inches |
| Compatibility | MTD, Cub Cadet, Troy-Bilt (specific models) |
| Replaces OEM Part Numbers | 742-0741, 942-0741, CMXGZAM100067 |
| Material | High-strength steel |
| Cutting Edge | Optimized for fine mulching |
Reasons to Buy
- Significantly improves mulching performance for a healthier lawn.
- Durable construction from high-strength steel ensures longevity.
- Wide compatibility with popular MTD, Cub Cadet, and Troy-Bilt mowers.
- Cost-effective alternative to OEM mulching blades.
- Reduces the need for bagging grass clippings, saving time and effort.
Reasons to Avoid
- May not be suitable for all 21-inch mowers; always verify OEM part number compatibility.
- Requires proper installation and safety precautions to ensure effective and safe operation.
4. EGO Power+ 21 mulching lawn mower blade ā Budget Friendly

If you're an EGO electric lawn mower owner looking to maintain a pristine lawn with minimal effort, the EGO POWER+ 21" Mulching Blade 2-Pack is an essential upgrade. Designed specifically for a range of EGO mower models, these blades are engineered to deliver a superior mulching performance, finely chopping grass clippings and returning vital nutrients back to your lawn. This means a healthier, greener yard with less need for bagging and disposal.
What sets this EGO blade set apart is its focus on optimizing the mulching function of your electric mower. By precisely cutting and re-cutting grass, these blades ensure a clean finish without leaving unsightly clumps, contributing to a professional look. For those who value a tidy lawn and the environmental benefits of mulching, this two-pack offers excellent value and ensures you always have a sharp, effective blade ready for action.
Key Specifications
| Feature | Details |
|---|---|
| Blade Type | Mulching |
| Quantity | 2 Blades |
| Compatibility | EGO LM2133, LM2130, LM2135SP, LM2130SP, LM2156SP, LM2150SP |
| Material | High-strength steel |
| Finish | Corrosion-resistant coating |
| Designed for | Optimal grass mulching |
Reasons to Buy
- Specifically designed for optimal mulching performance on compatible EGO mowers.
- High-strength steel construction ensures durability and longevity.
- Corrosion-resistant coating protects against rust and wear.
- Two-pack provides excellent value and a convenient spare blade.
- Easy to install, allowing for DIY maintenance.
Reasons to Avoid
- Only compatible with specific EGO 21-inch electric mower models.
- May require a blade sharpening tool or professional sharpening service when dull.
5. A ABIGAIL 21 mulching lawn mower blade ā Top Performer

If you're looking to give your lawn a manicured, healthy look while also reducing yard waste, a quality mulching blade is essential. This 2-pack of 21-inch mulching blades is designed to fit a wide range of popular lawn mower brands, including Troy-Bilt, Cub Cadet, and Craftsman, making it a versatile option for many homeowners. These blades are engineered to finely chop grass clippings, returning valuable nutrients to your soil and eliminating the need for bagging.
What sets this blade set apart is its robust construction and precise engineering, aimed at delivering a superior mulching performance. By effectively cutting and re-cutting grass, these blades ensure a cleaner cut and a healthier lawn. For those who value efficiency and a well-maintained yard without the hassle of dealing with clippings, this product offers a compelling solution.
Key Specifications
| Feature | Details |
|---|---|
| Blade Length | 21 inches |
| Quantity | 2 Blades |
| Material | High-strength steel alloy |
| Compatibility | Troy-Bilt, Cub Cadet, Craftsman, MTD (Replaces 742-04100, 742-0741, 742-0741A, 942-0741, 942-0741A) |
| Blade Type | Mulching |
| Deck Size | Designed for 21-inch cutting decks |
| Mounting Hole | Center hole design |
Reasons to Buy
- Excellent mulching performance that finely chops clippings.
- Broad compatibility with Troy-Bilt, Cub Cadet, Craftsman, and MTD mowers.
- Durable construction ensures longevity and consistent performance.
- Eliminates the need for bagging, saving time and effort.
- Promotes a healthier lawn through natural fertilization.
Reasons to Avoid
- Not suitable for side-discharge or bagging-only operations.
- May require a blade adapter for some specific mower models not listed.
6. Grasscool 21 mulching lawn mower blade ā Recommended
If you own a Troy Bilt 21-inch walk-behind push mower and are looking to enhance its mulching capabilities, the Grasscool 942-0741A Mulching Blades are a compelling upgrade. Designed specifically to fit a range of popular Troy Bilt models, these blades aim to provide a superior cut and finer mulching performance, turning grass clippings into nutrient-rich mulch for a healthier lawn. They are an excellent option for homeowners who want to improve their lawn's appearance and reduce the need for bagging.
These replacement blades offer a straightforward way to achieve a more manicured look without the hassle of frequent emptying. By finely chopping grass, they not only feed your lawn but also reduce thatch buildup, leading to a greener, more vibrant yard. For those seeking an efficient and effective mulching solution for their Troy Bilt mower, the Grasscool 942-0741A blades present a strong value proposition, combining durability with enhanced cutting performance.
Key Specifications
| Feature | Details |
|---|---|
| Blade Type | Mulching |
| Compatibility | Troy Bilt 21-inch mowers (TB110, TB230, TB240, TB130, TB210, TB320, TB220, TB280ES) |
| Replaces Part Numbers | 742-0741A, 942-0741 |
| Material | High-quality steel |
| Blade Length | 21 inches |
| Quantity | Typically sold as a set (check listing) |
Reasons to Buy
- Significantly improves mulching performance, reducing clumps and feeding your lawn.
- Durable construction from high-quality steel ensures a long lifespan and consistent cutting.
- Direct replacement for common Troy Bilt mower part numbers, ensuring easy installation.
- Enhances lawn health by returning nutrients to the soil, acting as a natural fertilizer.
- Offers excellent value for money compared to OEM blades while providing superior mulching.
Reasons to Avoid
- May not perform as effectively in very wet or extremely tall grass conditions without more frequent mowing.
- Requires a mower deck specifically designed for mulching or the ability to remove the bagger and install a mulching plug for optimal results.
7. Maxpower 21 mulching lawn mower blade ā Recommended

If you're looking to give your lawn a cleaner, healthier cut and reduce the need for bagging, the MaxPower 331737B Mulching Blade is a fantastic option for owners of many 21-inch Craftsman, Husqvarna, and Poulan mowers. This blade is designed specifically to finely chop grass clippings, returning valuable nutrients back into your lawn, which can lead to a lusher, greener appearance over time. It's a straightforward upgrade that can make a noticeable difference in your lawn care routine.
What sets this mulching blade apart is its robust construction and effective design for breaking down grass. Itās a cost-effective way to enhance your mower's performance without needing to buy a whole new machine. For homeowners who prefer a natural approach to lawn fertilization and a tidier finish without the hassle of bagging, this blade offers excellent value and performance.
Key Specifications
| Feature | Details |
|---|---|
| Blade Length | 21 inches |
| Blade Type | Mulching |
| Material | High-strength steel |
| Center Hole Size | 3/4 inch (with adapter for 5/8 inch) |
| Replaces OEM Numbers | 165833, 175052, 406712, 532175064, 594893001, 175064 |
| Compatibility | Craftsman, Husqvarna, Poulan (and others with compatible decks) |
| Thickness | 0.140 inches |
8. Grasscool 21 mulching lawn mower blade ā Recommended

If you're looking to give your lawn a cleaner, healthier cut while also reducing yard waste, the Grasscool 406712 Mulching Mower Blade is a fantastic option for your 21-inch push or walk-behind lawnmower. Designed to effectively chop grass clippings into fine pieces that return nutrients to your soil, this blade is ideal for homeowners who want to maintain a lush, green yard with less effort and less bagging. It's a straightforward upgrade that can make a noticeable difference in your lawn's appearance and overall health.
This mulching blade stands out for its robust construction and precise engineering, ensuring a consistent and efficient mulching performance. By replacing your standard blade with this specialized one, you're not just improving the aesthetic of your lawn; you're also embracing a more eco-friendly approach to lawn care by eliminating the need for bagging and disposal of grass clippings. It offers excellent value, providing a significant upgrade in mulching capability without a hefty price tag.
Key Specifications
| Feature | Details |
|---|---|
| Blade Length | 21 inches |
| Mounting Pattern | Circle |
| Material | High-strength steel |
| Compatibility | Craftsman, Husqvarna 21-inch push/walk-behind mowers |
| Replaces Part Numbers | 165833, 175064, 189028, 532189028 |
| Intended Use | Mulching |
Reasons to Buy
- Significantly improves mulching performance, finely chopping clippings.
- Enhances lawn health by returning nutrients and moisture to the soil.
- Reduces the need for bagging and disposal, saving time and effort.
- Durable high-strength steel construction for long-lasting use.
- Broad compatibility with many 21-inch Craftsman and Husqvarna mowers.
Reasons to Avoid
- May require more frequent sharpening than less aggressive blades if used in very tough conditions.
- Not suitable for side-discharge or bagging-only mowers; designed specifically for mulching.
9. EGO Power+ 21 mulching lawn mower blade ā Recommended

If you're looking to get the most out of your EGO POWER+ electric lawn mower, especially when it comes to achieving a clean, manicured finish without the hassle of bagging clippings, the EGO POWER+ 21" Mulching Blade (AB2100) is an essential upgrade. Designed specifically for a range of EGO 21-inch mowers, this blade transforms your cutting experience, turning grass clippings into a fine mulch that nourishes your lawn. It's perfect for homeowners who value a tidy yard and a healthy lawn, and who appreciate the convenience of electric power.
This mulching blade isn't just about chopping grass; it's engineered to finely shred clippings and return them to the turf, acting as a natural fertilizer. This means less work for you (no more bagging and disposing of grass) and a healthier, greener lawn over time. For those who own compatible EGO mowers and want to elevate their lawn care routine with minimal effort and maximum benefit, this blade offers a significant improvement over standard blades.
Key Specifications
| Feature | Details |
|---|---|
| Blade Type | Mulching |
| Blade Length | 21 inches |
| Compatibility | EGO LM2101, LM2100, LM2102SP, LM2100SP, LM2142SP models |
| Material | High-strength steel |
| Design | Optimized for fine shredding |
| Installation | Direct replacement for original blade |
| Purpose | Turns grass clippings into nutrient-rich mulch |
Reasons to Buy
- Significantly improves lawn health by returning nutrients to the soil.
- Eliminates the need for bagging and disposing of grass clippings, saving time and effort.
- Designed for a perfect fit and optimal mulching performance on compatible EGO mowers.
- Durable construction ensures long-lasting use and consistent cutting quality.
- Promotes a cleaner, more manicured appearance by reducing grass clumping.
Reasons to Avoid
- Not compatible with all EGO mower models; requires checking specific model numbers.
- May not perform as effectively in very wet conditions or when cutting extremely overgrown grass, potentially leaving some larger clumps.
10. Chway 21 mulching lawn mower blade ā Recommended
If you're looking to give your lawn a cleaner, healthier cut while also enriching your soil, a quality mulching blade is essential. The Chway 331737B 406712 Mulching Blade is designed to do just that, transforming grass clippings into fine mulch that feeds your lawn. This 21-inch blade is a fantastic option for homeowners with push walk-behind mowers from popular brands like Craftsman and Husqvarna, offering a noticeable upgrade in cutting performance and lawn health.
This blade stands out for its ability to effectively mulch grass, reducing the need for bagging and leaving behind a natural fertilizer. Its durable construction and precise design ensure a clean cut, preventing ragged edges that can lead to disease. For those seeking an efficient and eco-friendly way to maintain their lawn, the Chway 331737B 406712 offers excellent value and performance.
Key Specifications
| Feature | Details |
|---|---|
| Blade Length | 21 inches |
| Mounting Pattern | Circle |
| Material | High-strength steel |
| Compatibility | Craftsman, Husqvarna 21-inch push walk-behind mowers |
| Replaces Part Numbers | 165833, 175064, 189028, 331737B, 406712 |
| Mulching Capability | High |
| Durability | Enhanced |
Reasons to Buy
- Significantly improves lawn health by naturally fertilizing the turf.
- Reduces yard waste and eliminates the need for grass bagging.
- Durable construction ensures long-lasting sharpness and performance.
- Wide compatibility with popular Craftsman and Husqvarna 21-inch mowers.
- Provides a cleaner, more professional cut compared to standard blades.
Reasons to Avoid
- May require more frequent sharpening than blades made of harder alloys if used in very abrasive conditions.
- Not suitable for users who prefer to bag their grass clippings for other uses.
Our Top Picks for the best 21 mulching lawn mower blade
Here are our top 3 picks based on performance, durability, and value for your lawn care needs.
Wrap Up the best 21 mulching lawn mower blade
Selecting the right blade can significantly improve your lawn's health and your mowing experience. Consider the material, length, and compatibility with your mower to ensure optimal performance. For those seeking the best mulching action, a blade specifically designed for this purpose will yield the best results.
Ultimately, the best 21 mulching lawn mower blade for you will depend on your specific mower model and your lawn care priorities. Investing in a quality blade ensures a cleaner cut, healthier grass, and a more efficient mowing process for years to come.
FAQs Regarding 21 mulching lawn mower blade
What is the most important factor when choosing a mulching blade?
The most important factor is ensuring the blade is compatible with your specific mower model and deck size. Proper fit is essential for safety and performance.
How often should I replace my mulching lawn mower blade?
It's generally recommended to replace your blade at least once a year, or sooner if it becomes dull, nicked, or bent. A sharp blade provides a cleaner cut and is safer to use.
Can I use a mulching blade on a mower that doesn't have a mulching feature?
Yes, many mulching blades can be used on mowers without dedicated mulching features. However, the mulching effectiveness might be reduced.
What is the difference between a mulching blade and a standard blade?
Mulching blades have a more aggressive cutting edge and often a curved design to chop grass into finer pieces. Standard blades are designed primarily for cutting and discharging grass.
Are there specific mulching lawn mower blade recommendations for electric mowers?
Yes, brands like EGO offer blades specifically designed for their electric mowers, optimizing performance and compatibility.
How do I know if my current blade needs replacing?
Look for visible signs of wear, such as nicks, bends, or dull edges. If your grass looks torn or ragged after mowing, your blade likely needs sharpening or replacement.
Will a mulching blade make my mower heavier?
No, the weight of a mulching blade is generally comparable to a standard blade of the same size. The design focuses on cutting efficiency, not added weight.
Where can I find the model number for my lawn mower?
The model number is usually located on a sticker or plate on the mower deck, the frame, or near the engine. Consult your owner's manual if you have trouble finding it.

