21” Lawn Mower Replacement Blade

In stock
Model
2905203
https://www.greenworkstools.com/60v-21-replacement-lawn-mower-blades is rated 4.7 out of 5 by 71.
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  • This mower blade fits all Greenworks and Kobalt Cordless Lawn Mowers with 21” steel decks.
$21.99
In stock

This mower blade fits all Greenworks and Kobalt Cordless Lawn Mowers with 21” steel decks.

  • Hardened steel blade
  • Rust-resistant finish
Blade Length:
21 Inch
Blade Material:
Steel
Battery Capacity:
-
  • (1) 21" Lawn Mower Blade
Rated 5 out of 5 by from 21 inch mower/spare replacement blade Came very quickly, Always nice to have a spare! The lawn mower is AWESOME…..no more worry about getting the right fuel and no need to remember about checking the oil as well !!!!
Date published: 2021-07-22
Rated 5 out of 5 by from What a difference a blade makes. I did not realize what a difference the new blade would make. I had the old blade sharpened but this new one was so much better.
Date published: 2021-07-21
Rated 5 out of 5 by from Quick and easy Fits perfect and works great. It was simple to find the right replacement blade and very easy to install. Good pricing and fast shipping
Date published: 2021-07-20
Rated 5 out of 5 by from Great blade We went from needing 4 batteries to mow the lawn to doing it all in 1 and a half! The blade is great and was very easy to replace.
Date published: 2021-07-13
Rated 5 out of 5 by from blade replacement Easy to order and I received it quickly. Works great and super easy to replace as they made impossible to incorrectly install.
Date published: 2021-07-12
Rated 5 out of 5 by from Just like original Fits just like the original blades. Cuts through grass with ease. Highly recommend as a replacement.
Date published: 2021-07-12
Rated 5 out of 5 by from Light weight & sharp Not only is it sharp & light weight, but it cuts nicely. Understand that the blade must be made light weight, but still quality durable enough in comparison to a gas mower since it is battery powered.
Date published: 2021-07-07
Rated 5 out of 5 by from Replacement mower blades Helped throw grass like it did when new, plus it cut easier and smoother lawn. Also did not up the reves
Date published: 2021-07-06
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Rated 5 out of 5 by from 21 inch mower/spare replacement blade Came very quickly, Always nice to have a spare! The lawn mower is AWESOME…..no more worry about getting the right fuel and no need to remember about checking the oil as well !!!!
Date published: 2021-07-22
Rated 5 out of 5 by from What a difference a blade makes. I did not realize what a difference the new blade would make. I had the old blade sharpened but this new one was so much better.
Date published: 2021-07-21
Rated 5 out of 5 by from Quick and easy Fits perfect and works great. It was simple to find the right replacement blade and very easy to install. Good pricing and fast shipping
Date published: 2021-07-20
Rated 5 out of 5 by from Great blade We went from needing 4 batteries to mow the lawn to doing it all in 1 and a half! The blade is great and was very easy to replace.
Date published: 2021-07-13
Rated 5 out of 5 by from blade replacement Easy to order and I received it quickly. Works great and super easy to replace as they made impossible to incorrectly install.
Date published: 2021-07-12
Rated 5 out of 5 by from Just like original Fits just like the original blades. Cuts through grass with ease. Highly recommend as a replacement.
Date published: 2021-07-12
Rated 5 out of 5 by from Light weight & sharp Not only is it sharp & light weight, but it cuts nicely. Understand that the blade must be made light weight, but still quality durable enough in comparison to a gas mower since it is battery powered.
Date published: 2021-07-07
Rated 5 out of 5 by from Replacement mower blades Helped throw grass like it did when new, plus it cut easier and smoother lawn. Also did not up the reves
Date published: 2021-07-06
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How often does the blade need to be replaced if it is used ~1 hour per week with mower set at highest setting and grass is dry?

Asked by: Lestat
Hello Lestat, Thank you for your question. The rate at which the blade will need to be changed will vary depending on the customer use, grass type, and more. Typically, we suggest sharpening or replacing at least once per season.
Answered by: Greenworks Support
Date published: 2021-07-23

Is this the same as the Greenworks 2903402 blade? Asking because that also seems to be compatible with your 80V GLM801602 mower.

Asked by: LowTechMowerPropulsor
Hello LowTechMowerPropulsor, Yes, this would be the same blade!
Answered by: Greenworks Support
Date published: 2021-07-23

Where can I get the bolt that holds the blade and disc fan in place? 

Asked by: Cooley
Hello Cooley, Please contact Greenworks directly at1-888-909-6757 for replacement parts.
Answered by: Greenworks Customer Care
Date published: 2021-07-12

This blade says it fits a 21” mower deck and the description says the blade is 21”.  Obviously there has to be some clearance so is the blade really 20” ?

Asked by: Don13
Hello Don13, Yes, this blade is approximately 20". This mower blade fits all Greenworks and Kobalt Cordless Lawn Mowers with 21” steel decks.
Answered by: Greenworks Support
Date published: 2021-07-12

Will this blade fit my 21" 40v elite mower model M-210-T. The # on the blade is GLB333041179.

Asked by: Al70
Hello Al70, Yes, it will be compatible.
Answered by: GWT Customer Support
Date published: 2021-07-06

Hello -- I am trying to locate the correct replacement blade for my 80V Greenworks Pro Cordless Mower (Model Number GLM801601 / 2500402). Thank you, in advance, for your assistance.

Asked by: Jaimebugs
Hi there! This blade will be compatible with your mower.
Answered by: Greenworks Support
Date published: 2021-06-29

Will this blade fit my Kobalt 80 volt lawnmower 2901603

Asked by: JackieM
Hello JackieM, It seems you accidentally provided a Kobalt blade model instead of the mower, so we are unable to confirm compatibility with your unit. However, know that blades models 2901603 and 2905203 are the same!
Answered by: Greenworks Support
Date published: 2021-06-25

Is this the right replacement blade for model # MO48L4212?

Asked by: Josh15
Hello Josh15, Yes, this blade will be compatible.
Answered by: Greenworks Support
Date published: 2021-06-22
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21” Lawn Mower Replacement Blade
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