Best Lawn Mower Blades 21 Inch
Taming your turf requires more than just a trusty lawn mower; it demands the finest blades to transform your grass into a lush, green masterpiece. When it comes to handling a 21-inch mower, the right set of blades can make all the difference between a lackluster lawn and a vibrant outdoor oasis. In this guide, we’ll unveil the best lawn mower blades that ensure your yard remains the envy of the neighborhood, delivering precision and performance with every cut.
Affordable Winner: Grasscool Mower Blade

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Perfect fit for mowers |
Great value for price |
Good customer ratings |
We’re excited to introduce the Grasscool 21-inch Mower Mulching Blade, our top pick for Affordable Winner !
This blade shines with its remarkable compatibility across popular brands like Craftsman, Husqvarna, and Poulan .
At an unbeatable price, it effortlessly combines performance and value, ensuring you get a clean, even cut without draining your wallet .
With its solid steel construction, you’ll appreciate the durability and balance this blade offers .
Just remember to check your mower's compatibility before making a decision !
We found it incredibly easy to install, and after a few minutes of mowing, any protective paint simply disappears, leaving you with a reliable tool for your lawn care needs .
Happy mowing!
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Best for Mulching: Grasscool Mulching Blade

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Perfect fit for mowers |
Inexpensive and effective |
Durable and long-lasting |
The 21 Inch Troy Bilt Mower Blade has quickly become our favorite for lawn care aficionados, earning the title of "Best for Mulching." With its 3-in-1 design, this mulching blade excels at finely shredding grass, returning vital nutrients to your lawn—pretty genius, right ?
What we love is its capacity to tackle tough mowing tasks, from overgrown weeds to rugged terrains .
Plus, the strong airflow minimizes clogging, making your mowing experience smoother .
Just remember, it’s tailored for those with a Bow Tie spindle, so double-check your mower’s compatibility .
A little sharpening keeps it at peak performance, ensuring that your lawn always looks its best!
Be sure to also check out the best lawn mower bagger for more options! Also, here is the price history so you know exactly when to buy!

Best for Craftsman Mowers: MaxPower Mulching Blade

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Perfect fit for various models |
Manufactured in the USA |
Cost-effective replacement |
When it comes to keeping your yard looking sharp, choosing the right lawn mower blade is crucial, and we found a standout option for Craftsman enthusiasts .
The MaxPower 331737B is our pick for the "Best for Craftsman Mowers." Why ?
It’s specifically designed to fit a wide range of Craftsman models and can replace multiple OEM numbers .
Plus, it’s proudly made in the USA !
While it may require a little sharpening right out of the box and isn’t quite as effective on heavy debris, its cost-effective nature and perfect fit make it a winner for any lawn care aficionado .
Check your owner’s manual, and you'll be mowing with confidence in no time!
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Best for Easy Installation: MTD Mulching Blades

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Easy to install |
Compatible with many models |
Versatile 3-in-1 functionality |
When it comes to lawn care, we know that ease of use can make all the difference .
That’s why we chose these 21-inch mulching blades as the "Best for Easy Installation." With a clever star-shaped center hole, they fit snugly on a variety of popular mowers like Troy-Bilt and MTD, allowing for a hassle-free swap .
Not only do they excel in mulching, but their 3-in-1 functionality means you can choose how to handle those pesky clippings—mulch, bag, or side discharge .
Just a heads up, while many users rave about their performance, a few have reported minor issues with dullness or balance out of the box .
We believe you’ll appreciate the versatility they bring to your lawn care routine!
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Maxpower Mulching Blade

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Perfect fit for many mowers |
Sharp and well-balanced |
Great mulching performance |
When it comes to the best lawn mower blades for a 21-inch cut, we can’t overlook the fantastic performance of this mulching blade .
Designed to fit a range of popular models like MTD, Cub Cadet, Troy-Bilt, and Craftsman, it’s an ideal replacement for OEM #'s 742-0741 and more .
With a sharp and balanced design, mowing becomes a breeze, and its mulching ability really shines, allowing for a lush lawn without the debris .
While it may need occasional sharpening and doesn’t fit every mower, its performance is well worth it .
Get ready to elevate your lawn care game!
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YAUNJI Lawnmower Sharpener

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Saves money on blades |
Easy to use |
Durable materials |
When it comes to keeping your lawn mower in top shape, we can’t overlook the Lawn Mower Blade Sharpener by YAUNJI .
This easy-to-use gadget transforms dull blades into razor-sharp cutting tools in just 10 seconds !
Designed to fit most electric drills, it saves you the hassle (and cost) of buying expensive new blades .
Plus, with its new double-layer corundum construction, durability is its middle name .
While the quality may not be top-tier, the convenience and money-saving potential make this sharpener a must-have for any lawn enthusiast .
Choose from a fun variety of colors to match your gardening style!
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EGO Power+ Blade Lawn Mower Blades 21 Inch

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Excellent cutting performance |
Compatible with EGO models |
Effective mulching and bagging |
When it comes to keeping your lawn looking pristine, the EGO Power+ 21-Inch Lawn Mower Blade is a standout choice .
Designed for EGO Power+ models like the LM2100 and LM2100SP, this 3-in-1 blade excels at mulching, bagging, and side discharging .
We found that the factory sharpened steel blade provides exceptional cutting performance, promoting lawn health with every pass .
However, it does require regular sharpening and may leave a few stragglers occasionally .
With a solid 4.7-star rating from over 5,000 reviews, you can trust this genuine EGO part to deliver compatibility and quality, making lawn care a breeze!
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Grasscool Mower Blades

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Compatible with multiple mowers |
Sturdy and thick material |
3-in-1 functionality |
When it comes to tackling tough mowing tasks, we highly recommend the Grasscool 21-inch mower blade .
This blade is compatible with a wide range of mowers, including several Troy-Bilt and Craftsman models, making it a versatile option for many homeowners .
With its robust design, it effectively handles overgrown weeds and rugged terrain .
Plus, the 3-in-1 functionality means you can mulch, bag, or side discharge all with one blade, which is a time-saver for any lawn care enthusiast .
While it’s crucial to note that this blade fits only Bow Tie spindles, once you have the right match, you’ll enjoy increased bagging capacity and superior cutting performance .
Just a heads up: the paint may wear off during use, but that just means it’s busy getting the job done !
Overall, this blade boasts a sturdy construction and has proven highly rated among users .
Remember, a great lawn starts with great equipment!
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UDC Mulching Blades

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Easy installation |
Heavy duty material |
Great mulching capability |
When it comes to achieving that perfectly manicured lawn, the 21-inch UDC mower blades are a game-changer !
We found these blades to be made from heavy-duty material, ensuring durability and stellar performance .
The easy installation feature means you'll be back to mowing in no time, and the great mulching capability leaves clippings finely chopped for a healthy lawn .
While the paint on the cutting edge is a minor annoyance—safety first, right?—it quickly wears off during operation .
Just keep in mind these blades require a specific deck size and may not fit all models .
Overall, these blades are a solid choice for a beautiful yard!
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Oregon 100 Series Blade Lawn Mower Blades 21 Inch

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Perfect fit for various mowers |
Sharp out of the package |
Durable Boron Steel material |
We’re excited to share our thoughts on the Oregon 21-inch lawn mower blade! Weighing in at just 1.73 lbs, this blade is a champion when it comes to cutting performance .
Crafted with durable Boron Steel, it features double bevel technology that ensures an extended cutting edge while minimizing noise during operation .
Installation is a breeze—it’s a perfect fit for major brands like MTD, Cub Cadet, and Craftsman .
While the blade may arrive in need of a quick clean and the paint might get dull, we found it to be sharp and ready to go right out of the package .
If you’re looking for reliability and efficiency, this blade is a solid choice!
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IDEASURE Gator Blade

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Efficient cutting performance |
Compatible with many models |
Excellent mulching capability |
We’re excited to share our thoughts on the 942-0741A gator mulching blade !
This 21-inch powerhouse excels in delivering an even, precise cut across various terrains, making it an efficient choice for anyone looking to tackle their lawn with ease .
Compatible with a multitude of mowers from Cub Cadet to Troy Bilt, it provides excellent versatility .
While the sharpness could use a little boost, the mulching capabilities are truly impressive .
Just remember to check for a precise fit—that’s the key to unlocking its full potential .
Overall, it’s a solid choice for an effortless mowing experience!
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