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Greenworks 21" Mower Replacement Blade
$21.99 was $24.99
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save $3.00 (12% reduction)In Stock
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About this item
Highlights
- Unique chevron design improves airflow and lift, ensuring a more efficient and even cut.
- Superior cutting performance for a crisp, even cut with every pass.
- Built to withstand wear and resist corrosion.
- Hassle-free installation; swap out your old blade in minutes
- Compatible with select 21" Greenworks lawn mowers.
Description
Upgrade your mowing experience with the Greenworks high-performance lawn mower blade—designed for precision, durability, and a cleaner cut every time. Crafted from hardened steel with a razor-sharp edge, this blade ensures effortless cuts through thick grass, reducing strain on your mower and giving your lawn a professional, well-manicured look.
Dimensions (Overall): 1 Inches (H) x 20 Inches (W) x 2.5 Inches (D)
Weight: 1.1 Pounds
Assembly Details: No Assembly Required
Material: Steel
Battery: No Battery Used
Warranty: 90 Day Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869
TCIN: 94635792
UPC: 841821027377
Item Number (DPCI): 084-19-8349
Origin: Made in the USA and Imported
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 21.65 inches length x 2.76 inches width x 1.77 inches height
Estimated ship weight: 5.9 pounds
We regret that this item cannot be shipped to PO Boxes.
This item cannot be shipped to the following locations: American Samoa (see also separate entry under AS), Guam (see also separate entry under GU), Northern Mariana Islands, Puerto Rico (see also separate entry under PR), United States Minor Outlying Islands, Virgin Islands, U.S., APO/FPO
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
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Guests are saying
This replacement mower blade is highly praised for its perfect fit and ease of installation, making it a convenient choice for guests looking to maintain their lawn. Many guests appreciate the sharpness and effectiveness of the blade, which delivers clean cuts and enhances the performance of their mowers. While some guests express concerns about the plastic bolt and availability of replacement parts, the overall experience remains positive, with many recommending it for its quality and reliability.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.8 out of 5 stars with 338 reviews
5 out of 5 stars
25 September, 2025
originally posted on greenworkstools.com
OEM Quality
[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.
5 out of 5 stars
20 September, 2025
originally posted on greenworkstools.com
Perfect Replacement Blade
[This review was collected as part of a promotion.] Perfect fit. Exactly like the blade that came on mower. Solid price as well.
5 out of 5 stars
16 September, 2025
originally posted on greenworkstools.com
Easy to replace and great
[This review was collected as part of a promotion.] The replacement blade is of exceptional quality. In contrast, my previous blade exhibited unusual behavior.
5 out of 5 stars
1 September, 2025
originally posted on greenworkstools.com
Easy peasey mower blade replacement
[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
5 out of 5 stars
9 September, 2024
originally posted on greenworkstools.com
Fits perfectly.
Fits perfect. Hate the plastic bolt though. This issue with the plastic bolt is that the edges round so had to use vice grips to take it off and put it back on. Would like a metal bolt replacement but cant find one.
5 out of 5 stars
5 September, 2024
originally posted on greenworkstools.com
Excellent replacement blade
[This review was collected as part of a promotion.] Fits perfectly. Easy installation. Finally cut the grass instead of bending it!
5 out of 5 stars
1 September, 2024
originally posted on greenworkstools.com
Backup plan.
[This review was collected as part of a promotion.] I bought a second blade from the company so I could have a backup if needed when having the blade sharpened, and rotating blades if needed. It has worked as I planned!
5 out of 5 stars
29 August, 2024
originally posted on greenworkstools.com
Non OEM Blade
[This review was collected as part of a promotion.] Perfect replacement for OEM blade. Replacement blade not available from box store that sold the mower.
5 out of 5 stars
29 August, 2024
originally posted on greenworkstools.com
Sharp, well balanced blade
[This review was collected as part of a promotion.] Not much to say. Was easy to install and cuts the grass cleanly.
5 out of 5 stars
28 August, 2024
originally posted on greenworkstools.com
Works great
[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.
5 out of 5 stars
27 August, 2024
originally posted on greenworkstools.com
'I took all 21 inches' and...
[This review was collected as part of a promotion.] 'YIKES!' Said my tall grass, which was cut down to size thanks for the 21 inch blade of steel! No grass was able to stand up to the big 21 incher. 'I took all 21 inches, and I couldn't take any more' said my greenworks mower
5 out of 5 stars
26 August, 2024
originally posted on greenworkstools.com
Replacement blade
[This review was collected as part of a promotion.] fits perfect, lawn mower makes clean cuts to the grass
5 out of 5 stars
22 August, 2024
originally posted on greenworkstools.com
Good OEM Part
[This review was collected as part of a promotion.] Good OEM replacement part. Installed with out issue, fit perfectly.
5 out of 5 stars
22 August, 2024
originally posted on greenworkstools.com
Very good blade.
[This review was collected as part of a promotion.] Great replacement blade. Very sharp, easy to replace.
5 out of 5 stars
19 August, 2024
originally posted on greenworkstools.com
Great blades and easy to install
[This review was collected as part of a promotion.] These blades are very easy to replace. I needed two new blades and these were perfect for my 80v 21” mower.
5 out of 5 stars
19 August, 2024
originally posted on greenworkstools.com
Perfect replacement
[This review was collected as part of a promotion.] Perfect replacement for current blade. Simple job to replace.
2 out of 5 stars
17 August, 2024
originally posted on greenworkstools.com
Not compatible with MO40L410
My mower is listed for this blade. It does fit the motor attachment on the mower, but it is too long for the mower. It's rubs the chassis.
1 reply from Greenworks team - 1 year ago
Hello TWilson. Thank you for reaching out to us. We are sorry to hear the part was not compatible, unfortunaly we were unable to find the model/ERP number (MO40L410 2507802) listed in the chart . The replacement blade part number for this mower is: (Item#: 2908902; Item#:2903402); this information can be found in the owner's manual. The actual blade length is approximately 1" shorter than the mower deck size to allow clearance between the blade tip and deck edge. We hope this information helpful. Should you have any further questions or need support finding a Greenworks part, contact us through Live Chat on www.greenworkstools.com or call Greenworks Pro toll-free helpline 1-855-345-3934. We would like the opportunity to speak with you to see if we can find a solution.
5 out of 5 stars
15 August, 2024
originally posted on greenworkstools.com
Exactly like I already have. Great purchase
[This review was collected as part of a promotion.] They fit perfect work great.Glad I order them.Sharp.
5 out of 5 stars
10 August, 2024
originally posted on greenworkstools.com
Worked great!
[This review was collected as part of a promotion.] Worked perfectly for my 80v 21" push mower. Can't tell the difference between the many different blades they have and which one is best for what, so they should definitely improve on that, as well as having them in stock. Overall would recommend if you need a replacement, so you can sharpen the one you take off and switch back and forth.
5 out of 5 stars
7 August, 2024
originally posted on greenworkstools.com
Replacement blade
[This review was collected as part of a promotion.] Replacement blade was very easy to swap out. Works great!!!