Best 21 inch mulching blades – What tough 21-inch mulching blades should you get for your mower?

. November 23, 2018 . 0 Comments

Mulching blades are designed to cut the grass clippings into a smaller size, which are then deposited back onto the lawn. Mulching helps to keep your lawn looking neat, as well as fertilizing the grass with nutritious clippings. The best 21 inch mulching blades will be powerful, efficient and offer a clean cut every time.


I have a Husqvarna riding mower with a 42 inch deck, which is compatible with 21-inch blades. As this is my first mower, I did not know a great deal about the blades. During my research, I found out that mulching blades can help fertilize the lawn and improve the health of the grass. I looked into the best 21 inch mulching blades for my mower to find a good option for me. Here are some of the best 21 inch mulching blades.


  Hardened Thickness Rating
Mr Mower Blades 195-005 No .14 4.2
MaxPower 331981S yes N/a 4.5
Honda genuine 72511-VH7-000 No .15 4.5
Stens 340-066 PK2 Yes .134 4.8


Mr Mower Blades 195-005

These blades are made in the USA. They are tough and durable, as a result of their hardening. They are also thick, which helps to cut through grass and leaves. Mr Mower blades are curved to create a cyclic aerodynamic lift which is ideal for mulching. Like other mulching options, they have a low lift, which reduces their effectiveness on wet turfs.


  • Made in USA
  • Sturdy and durable
  • Good angle for mulching


  • Low lift might require more effort on certain lawns

MaxPower 331981S Universal Mulching Mower Blade

The universally fitting MaxPower blades are easy to install and are compatible with many mower decks. These blades are curved upwards to help improve your mower’s mulching capability. They are very powerful, and will guarantee a great cut. These mower blades have low lift, which migh require more effort in wet conditions.


  • Powerful blades
  • Great angle for mulching
  • Durable


  • Low lift might require additional effort when mowing


Honda genuine 72511-VH7-000 & 72531-VH7-000 for HRX217

These set of two blades are made of high quality materials, which guarantee a good cut with every mow. They are already sharpened on purchase, and are easy to install. The genuine Honda blades are exactly the same parts as stock mower blades for the Honda HRX217 mower. They are curved upwards to enhance your mower’s ability to mulch. However, these blades are not austemper hardened and ,may not last as long as other options on this list.


  • Great quality
  • Good angle for mulching


  • Low lift
  • Not as hard as hardened blades
  • Not compatible with some mower decks


Stens 340-066 PK2 Mulching Set of 2

Stens blades are compatible with most mower decks. The 340-066 PK2 set of two blades is a universal fit, and is easy to install. The blades are very sharp, and are curved upwards to enhance mulching. These blades are also austemper hardened, making them strong and durable. They are also ideal for heavy duty work, and may be used to mulch leaves as well as pine cones. The low lift on the blades makes mowing the lawn in wet conditions very difficult, and you may be required to re-do certain patches.


  • Great angle of tilt for mulching
  • Durable
  • Can handle heavy duty work
  • Guarantees a great cut
  • Best rated


  • Low lift might be inefficient in wet conditions


My verdict

The best 21 inch mulching blades offer convenience and performance. All these options will provide your lawn with a neat trim without too much effort. I like the Stens 340-066 PK2 mulching set because of its extra hardening, which guarantees durability. The blades are also great for heavy duty lawns.

Category: Mower blades

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