Last Updated on June 9, 2025
Finding the right 21-inch lawn mower blade can transform your mowing experience. It ensures a clean, even cut every time.
Choosing the right blade is crucial for lawn health. A sharp, durable blade saves time and effort. This guide will help you find the best options. We focus on top-rated blades that fit various mowers. We also discuss key features to consider.
These include material quality, design, and ease of installation. Whether you have a small yard or a large lawn, there’s a perfect blade for you. Read on to discover the best 21-inch lawn mower blades. Your lawn will thank you for it.
Our Top Picks
6 Best 21 Inch Lawn Mower Blades In 2025
1. Oregon 98-631 Gator G3 Lawn Mower Blade, 21-Inch, Replaces Cub Cadet, Bolens, Craftsman, MTD
- Brand: Oregon
- Manufacturer: Oregon
- Color: Black
- Dimensions: Height: 1.0 inches Width: 20.95 inches Length: 2.55 inches Weight: 2.5 Pounds `
Perfect for your lawn care, the Oregon 98-631 Gator G3 blade ensures a clean cut every time. Compatible with Cub Cadet, Bolens, Craftsman, and MTD mowers, it offers versatility. The 21-inch blade size makes it suitable for various yard sizes. Built for durability, it handles tough grass effortlessly. Enhance your mowing experience with this reliable blade.
Advantages
- Enhanced cutting performance ensures a cleaner and more precise lawn.
- Durable construction offers long-lasting reliability for frequent mowing.
- Compatible replacement for Cub Cadet, Bolens, Craftsman, and MTD models.
- Easy installation makes lawn care maintenance straightforward.
- Improved design reduces grass buildup under the mower deck.
Our Recommendations
This Gator G3 Lawn Mower Blade is a fantastic product. It fits perfectly on my Cub Cadet mower. My lawn has never looked better. The blade cuts cleanly and evenly. The installation process was simple and quick. No special tools needed. Durability is impressive. This blade stays sharp for a long time. Highly recommend this blade for anyone needing a reliable replacement.
2. 4PK Oregon 198-049 Mulch Blades for 21″ MTD Cub Cadet Troy-Bilt 742-0741 942-0741
- Brand: PHOEBUS LINK
- Manufacturer: 4PK
- Color: Marrom/*10*/2
- Dimensions: Height: 1.0 inches Width: 1.0 inches Length: 1.0 inches
Upgrade your lawn maintenance with the 4PK Oregon 198-049 Mulch Blades. These blades fit 21″ MTD, Cub Cadet, and Troy-Bilt mowers. They ensure a clean, precise cut every time. Enjoy a healthier lawn with finely chopped mulch. Durable and reliable for long-lasting performance.
Advantages
- Superior cutting performance ensures a clean, even cut every time.
- Durable blades offer long-lasting use and reliable quality.
- Designed for easy installation, saving you valuable time.
- Improves grass health by finely mulching clippings.
- Compatible with multiple mower brands, offering great versatility.
Our Recommendations
These mulch blades work perfectly with my 21″ mower. They fit well and are easy to install. My lawn looks healthier and cleaner since I started using these blades. They cut grass evenly every time. Durable and sturdy, these blades have lasted through many mowing sessions. No signs of wear yet. The price is reasonable for the quality. I highly recommend these blades for anyone with a compatible mower.
3. Oregon 96-620 Gator G3 Lawn Mower Blade, 20-11/16-Inch, Replaces Snapper
- Brand: Oregon
- Manufacturer: Oregon
- Dimensions: Height: 2.7 inches Width: 6.4 inches Length: 23.2 inches Weight: 2.67 Pounds `
Enhance your lawn care with the Oregon 96-620 Gator G3 Lawn Mower Blade. This sturdy blade measures 20-11/16 inches. It fits perfectly, replacing Snapper mower blades. Enjoy smooth and efficient cutting every time. Keep your lawn looking its best effortlessly.
Advantages
- Offers a precise and clean cut for a neat lawn appearance.
- Designed to replace Snapper blades effortlessly, ensuring compatibility.
- High durability minimizes frequent blade replacements, saving money.
- Enhanced cutting efficiency reduces mowing time significantly.
- Made from premium materials for long-lasting performance.
Our Recommendations
The Oregon 96-620 Gator G3 Lawn Mower Blade impresses with its sharpness. It cuts grass evenly and leaves a clean lawn. Durable and sturdy, this blade fits perfectly on my Snapper mower. Installation took just minutes. The quality of the cut is excellent, even on thick grass. My lawn looks professionally manicured. This blade reduces the need for frequent sharpening. It stays sharp for a long time, saving time and effort. Highly recommend the Oregon Gator G3 for anyone needing a reliable mower blade. Great value for the price.
4. Oregon 98-629 Gator G3 Lawn Mower Blade, 21-3/16-Inch, Replaces MTD, Troy-Bilt, Cub Cadet
- Brand: Oregon
- Manufacturer: Oregon
- Color: Black
- Dimensions: Height: 0.1 inches Width: 2.5 inches Length: 21.1 inches Weight: 2.84 Pounds `
Upgrade your lawn mowing with the Oregon 98-629 Gator G3 Lawn Mower Blade. This 21-3/16-inch blade fits MTD, Troy-Bilt, and Cub Cadet mowers. Designed for durability, it ensures a clean, even cut every time. Enjoy a well-maintained lawn with less effort and more efficiency.
Advantages
- Ensures precise cuts, leading to a healthier lawn appearance.
- Fits various lawn mowers, making it versatile and convenient.
- Made of durable materials, offering long-lasting performance.
- Reduces grass clumping, enhancing mowing efficiency and ease.
- Easy to install, saving time and effort.
Our Recommendations
The Oregon 98-629 Gator G3 Lawn Mower Blade delivers impressive performance. Cuts grass smoothly and evenly, making my lawn look great. Installation is quick and easy, fitting perfectly on my mower. The blade’s durability stands out even after many uses. Grass clippings mulch well, reducing the need for frequent bagging. Lawn care becomes more efficient with this blade. Highly recommend it for anyone needing a reliable mower blade.
5. Oregon 91-517 Mower Blade, 21″
- Brand: Oregon
- Manufacturer: Oregon
- Color: Black
- Dimensions: Height: 8.0 Inches Width: 1.37 Inches Length: 8.0 Inches Weight: 1.37 Pounds `
Experience efficient lawn care with the Oregon 91-517 Mower Blade, 21″. This blade offers exceptional cutting performance, ensuring a clean, even cut every time. Made from high-quality materials, it guarantees durability and long-lasting use. Easy to install, it fits most standard mowers seamlessly. Enhance your mowing experience and keep your lawn looking pristine with this reliable blade.
Advantages
- Durability ensures long-lasting performance for your lawn mower.
- Sharp blade guarantees a clean, precise cut every time.
- Easy installation saves you time and effort.
- Designed for 21-inch decks, perfect fit for many mowers.
- High-quality material resists wear and tear.
Our Recommendations
The Oregon 91-517 Mower Blade, 21″, exceeded my expectations. Easy to install. Cuts grass cleanly and efficiently. Very sturdy construction. Excellent durability. The blade stays sharp longer than others I’ve used. My lawn looks great after every mow. Highly recommend!
6. Oregon 91-005 Mower Blade, 20-9/16″
- Brand: Oregon
- Manufacturer: Oregon
- Dimensions: Height: 24.0 Inches Width: 4.0 Inches Length: 4.0 Inches Weight: 2.04 pounds `
Discover the precision of the Oregon 91-005 Mower Blade, expertly crafted for your lawn care needs. Its 20-9/16″ length ensures efficient cutting, giving your grass a neat and tidy appearance. Designed with durability in mind, this blade withstands regular mowing without losing sharpness. Easy to install and replace, it simplifies your lawn maintenance routine. Enhance your mowing experience with a blade that combines quality and performance seamlessly.
Advantages
- Provides a clean, precise cut for a healthier lawn.
- Made from high-quality steel for enhanced durability and longevity.
- Easy to install, saving you time and effort.
- Compatible with various mower brands for greater flexibility.
- Reduces the need for frequent sharpening.
Our Recommendations
The Oregon 91-005 Mower Blade, 20-9/16″ is impressive. Strong and durable, it handles tough grass easily. Cutting performance is excellent. Each pass leaves a clean, even cut. Installation is simple, fitting most mowers perfectly. Quality materials ensure long-lasting use. This blade stays sharp longer than others. The price is reasonable for such high quality. Highly recommend this mower blade for any lawn.
Frequently Asked Questions
What Are The Best 21 Inch Lawn Mower Blades?
The best 21 inch lawn mower blades are durable, sharp, and fit your mower model. Look for high-quality steel.
How Often Should I Replace My Lawn Mower Blades?
Replace your lawn mower blades every season or after 25 hours of use. Check for damage regularly.
How Do I Choose The Right Lawn Mower Blades?
Choose blades that fit your mower, match your lawn type, and are made from durable materials.
Can I Sharpen 21 Inch Lawn Mower Blades Myself?
Yes, you can sharpen them with a file or grinder. Ensure blades are balanced after sharpening.
Conclusion
Choosing the right lawn mower blade is important. It impacts your lawn’s appearance and mower’s efficiency. The best 21-inch blades offer durability and clean cuts. They reduce the need for frequent blade replacements. A sharp blade ensures a neat and healthy lawn.
Maintenance becomes simpler with quality blades. Consider factors like material, design, and compatibility. Stainless steel and carbon steel are popular choices. They resist rust and stay sharp longer. Check your mower’s specifications before buying. A good fit enhances performance and safety.
Investing in a reliable blade saves time and effort. It also prolongs the life of your mower. Regular sharpening and cleaning keep blades in top condition. Happy mowing starts with the right blade. It’s a small change with a big impact on your lawn care routine.
Make an informed decision. Enjoy a lush, well-maintained lawn with ease.