Customer reviews from greenworkstools.com
Greenworks - 21" (51 CM) Replacement Lawn Mower Blade - Black
Average customer rating
4.7 out of 5
4.7
(216 Reviews)
Open Ratings Snapshot
Rating breakdown 216 reviews
5 Stars
185
4 Stars
18
3 Stars
6
2 Stars
1
1 Star
6
95%of customers recommend this product. 
(
164 out of 172
)
Best Buy Privacy Policy
Customer Reviews for Greenworks - 21" (51 CM) Replacement Lawn Mower Blade - Black
Customer Rating
5 out of 5
5
Works great
on August 28, 2024
Posted by: Robert W
from North Florida
Gender:Male
Verified Purchase:Yes
[This review was collected as part of a promotion.] Wanted to have an extra blade just in case. This one is perfect just like the original.
Pros: Durable
I would recommend this to a friend!
Written by a customer while visiting greenworkstools.com
Customer Rating
5 out of 5
5
Easy peasey mower blade replacement
on September 1, 2025
Posted by: Anonymous
from Easton MD
Gender:Female
Verified Purchase:Yes
[This review was collected as part of a promotion.] Needed a new mower blade and it was surprisingly easy to replace it. Love my Greenworks mower
Pros: Convenient, Easy to Use, Quiet, Environmentally Safe
I would recommend this to a friend!
Written by a customer while visiting greenworkstools.com
Customer Rating
5 out of 5
5
Easy to replace and great
on September 15, 2025
Posted by: Manikanta
from NC
Gender:Male
Verified Purchase:Yes
[This review was collected as part of a promotion.] The replacement blade is of exceptional quality. In contrast, my previous blade exhibited unusual behavior.
Pros: Effective
Written by a customer while visiting greenworkstools.com
Customer Rating
5 out of 5
5
Perfect Replacement Blade
on September 19, 2025
Posted by: Anonymous
from South GA
Gender:Male
Verified Purchase:Yes
[This review was collected as part of a promotion.] Perfect fit. Exactly like the blade that came on mower. Solid price as well.
Pros: Easy to Use, Durable, Effective
I would recommend this to a friend!
Written by a customer while visiting greenworkstools.com
Customer Rating
5 out of 5
5
OEM Quality
on September 25, 2025
Posted by: Diabolik
from Pittsburgh, PA
Gender:Male
Verified Purchase:Yes
[This review was collected as part of a promotion.] I ended up getting my Greenworks mower from a neighbor that was moving away. I ordered a new blade after seeing that the one on it was pretty badly chipped up. This one was exactly like one i removed. Paint finished was great and the blade had a perfect edge on it. this thing cuts great. Zero complaints and price was fair.
Pros: Easy to Use, Quiet, Durable, Effective, Powerful
I would recommend this to a friend!
Written by a customer while visiting greenworkstools.com
Customer Rating
5 out of 5
5
Fit like a gem!
on May 1, 2026
Posted by: Fryguy_PA
from Northampton, PA
Gender:Male
Verified Purchase:Yes
[This review was collected as part of a promotion.] Ordered replacement blades for our 21" self-propelled 80v mower. Fit perfect, bolted right on — alignment marks made it real easy to get everything lined up. Took it out on the lawn and you can definitely tell the difference in a new, sharp blade..
Pros: Convenient, Durable
I would recommend this to a friend!
Written by a customer while visiting greenworkstools.com
Customer Rating
5 out of 5
5
Quality Blade Construction
on May 17, 2026
Posted by: Engie
from Florida
Gender:Male
Verified Purchase:Yes
[This review was collected as part of a promotion.] This is a well designed blade with a balance construction and sharp edges for quality lawn care. It’s also well coated with green powder coated paint for corrosion resistance and durability.
I highly recommend the green works blade over a regular box store brand.
Pros: Easy to Use, Quiet, Durable, Effective, Powerful
I would recommend this to a friend!
Written by a customer while visiting greenworkstools.com
Customer Rating
5 out of 5
5
Nice Blades!
on June 18, 2026
Posted by: John.Z
Verified Purchase:Yes
They fit perfect on my Kobalt Km211 06, that have the half moon and full moon key holes.
Thank you do much for have these in stock.
I would recommend this to a friend!
Written by a customer while visiting greenworkstools.com
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