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21 Lawn Mower Blades

70 results

4.7
46
  • Heavy duty mulching and bagging blade
  • Interchangeable lower blade on the Select Cut™ Multi-Blade System
  • All steel blade for excellent cutting performance
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4.8
351
  • This blade fits Greenworks 80V, 60V and Kobalt 80V Mowers
  • Hardened steel blade
  • Rust-resistant finish
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4.6
55
  • Replaces OEM numbers 942-0741, 942-0741A
  • Also fits Craftsman CMXGZAM100067
  • Includes 1 mulching blade for many 21-in cut MTD, Cub Cadet, and Troy-Bilt mowers
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4.4
65
  • Designed specifically for EGO POWER+ 21” mowers to give your lawn the best, sharp cut for a crisp and clean look
  • Good universal performance for mulching, bagging, and side-discharging
  • For use with LM2110/LM2114, LM2110SP/LM2114SP, LM2120SP/LM2125SP
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4.8
80
  • Double-sided blades fit Honda HRN VYA models
  • Provide a smooth cut for a manicured lawn
  • Smaller clippings decompose faster, allowing valuable nutrients to go back into your lawn to help feed it and keep it green
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4.7
31
  • Fits select Toro 21-inch mowers 2018 and newer, as well as Lawn-Boy mower model years 2005 and newer
  • High-quality, sharp 21 in replacement blade for a superior cut
  • Contains rust prevention oil coating
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3.6
33
  • Mulching, Bagging and Side Discharging Blade for 21-inch Cutting Decks
  • Made in the USA
  • CRAFTSMAN S-Shape blade
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MTD Genuine Parts 21-in Deck Multipurpose Mower Blade for Walk-behind mowers 742-0741A and 942-0741A
4.7
674
  • Mulching blades designed to work with decks that are equipped with mulch baffles
  • Mulching blades help reduce raking or bag clippings
  • Blades should be inspected and sharpened or replaced every season. sharp-edged blades cut grass cleanly and make their way through grass more efficiently, reducing overall mowing time and effort and creating a healthier-looking lawn
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4.4
64
  • Specifically designed to enhance efficiency when bagging grass clippings
  • For use with EGO POWER+ 21 Inch mowers
  • Delivers a clean cut to promote lawn health
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4.0
64
  • Replacement blade for EGO POWER+ 21-In mowers
  • Factory sharpened steel blade
  • 21-In blade length
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4.6
69
  • Fits most rotary walk behind mowers
  • 21 inch double-sided blade
  • Smaller clippings decompose faster, allowing valuable nutrients to go back into your lawn to help feed it and keep it green
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4.1
36
  • 21-in Blade for Extended Run Time
  • Interchangeable lower blade on the Select Cut™ Multi-Blade System
  • All steel blade for excellent cutting performance
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5.0
2
  • Fits 2018 and newer 21 inch Toro Super Recycler and Heavy-Duty Recycler mowers
  • Helps keep you lawn mower in peak performance
  • Steel blade provides easier mulching and bagging
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4.7
63
  • Fits Honda HRX models ONLY
  • 21-in double-sided blade
  • Smaller clippings decompose faster, allowing valuable nutrients to go back into your lawn to help feed it and keep it green
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4.4
14
  • 21-in Blade for Superior Bagging
  • Interchangeable Lower Blade on the Select Cut™ Multi-Blade System
  • All steel blade for excellent cutting performance
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3.5
20
  • Includes one mulching blade for many 21-in cut Greenworks mowers
  • Replaces OEM numbers Greenworks 29423, Kobalt 535386
  • Fits models Greenworks 2502202, Kobalt KM210-06
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4.7
21
  • Used on: walk-behind, push and self-propelled mowers with a 21-inch cutting deck 1995 to present
  • For model brands such as Troy-Bilt, MTD, Craftsman, MTD Gold, Bolens, White Outdoor, Murray, Snapper, Yard Machines, Yard-Man and Huskee
  • This blade is also available as the following part numbers: 490-100-C089 and 490-100-M084
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4.7
3
  • Includes 1 high lift blade for many 21-in cut MTD, Cub Cadet and Troy-Bilt mowers
  • Replaces OEM number 942-0642
  • Measures 21-in L and 2-1/4-in W
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  • Fits most 21-in, 22-in and 23-in walk-behind mowers
  • The tough replaceable nylon lines are .170-in thick
  • Contains one blade, adapters to fit 3/8-in, 7/16-in and 5/8-in universal center hole, bow-tie, and 5-point star patterns and dethatching line
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4.7
155
  • Husqvarna premium 4-in-1 multipurpose replacement blade for 21-in mowers
  • Hardened steel for durability
  • Star mounting type
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5.0
1
  • Genuine Honda replacement product
  • Provides a smooth cut for a manicured lawn
  • Smaller clippings decompose faster, allowing valuable nutrients to go back into your lawn to help feed it and keep it green
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4.8
9
  • Fits YARDMAX 21"; walk-behind push mowers
  • High-quality, sharp 21 in replacement blade for a superior cut
  • Solid steel
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4.5
237
  • This blade fits Kobalt item number 632477: Kobalt 80-Volt Max Brushless Lithium Ion 21-in Deck Width Cordless Electric Lawn Mower Kit with Mulching Capability (model #KM 2180B-06)
  • This blade fits Kobalt item number 667318: Kobalt 80-volt Brushless Lithium Ion 21-in Cordless Electric Lawn Mower (model #KM 2180B)
  • This blade fits Kobalt item number 911051: Kobalt 80-volt Self-propelled Brushless Lithium Ion 21-in Cordless Electric Lawn Mower Kit (model #KMP 2580-06)
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2.3
3
  • Genuine Honda replacement product
  • Provides a smooth cut for a manicured lawn
  • Smaller clippings decompose faster, allowing valuable nutrients to go back into your lawn to help feed it and keep it green
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Related Products

Maintain a Healthier Lawn With New Lawn Mower Blades

Brand new lawn mower blades give your grass a faster, healthier cut. If your grass looks torn rather than cleanly cut after mowing the lawn, it's time to replace your blades. 


Different mowers vary in deck width, so whether you handle a push mower or riding mower, you'll need to measure the deck width to determine the correct blade size for your machine. See our guide — How to Maintain a Push Mower — for more lawn mower blade replacement tips. 


When buying new blades, it's also useful to consider specific grass-cutting features. Specialty blade types help you tackle the task for your situation, whether that's regular grass, heavy leaf foliage or a sandy subsurface. For example, the star-shaped holes in mulching blades chip up grass into smaller pieces to be returned to the lawn for added nutrients. Many Craftsman lawn mower blades are made for mulching, bagging and more.