Model: #AC04022

3.2 | 6 Reviews
The RYOBI 21 in. Replacement Mower Blade is the best solution for replacing your 40V 21 in. Mower’s damaged or dull blade. This blade is optimized for cordless, improving its cutting efficiency and increasing its run time. Buy with confidence knowing that this OEM part will work with your RYOBI 21 in. Mower.

This is a consumable item and therefore is not covered by a warranty. It is warranted against defective parts and labor only and not from misuse or deterioration of the product through normal wear and tear.

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  • Compatible Model: RY40LM10-Y
  • Blade Length: 21 in.
  • Material: Steel


21" MOWER REPLACEMENT BLADE is rated 3.2 out of 5 by 6.
Rated 2 out of 5 by from Very poor parts list for RY401014US Why doesn't RYOBI put the correct model number in the manual for their mowers?? It is extremely difficult in finding the correct blade!!!
Date published: 2023-04-19
Rated 4 out of 5 by from Blade OK Bought the 21" mower at the beginning of the season, so far so good. I have ben mowing twice a week, blade needs sharpening every three weeks. Wife said I'm OCD about keeping the blade sharp. Grass and twigs ar the only thing the blade has touched. I hope to get many more sessions out of this the original blade
Date published: 2022-08-01
Rated 5 out of 5 by from Great value The blade can last many years. I replaced mine after 5 years. It is easy to replace. Great value.
Date published: 2022-07-24
Rated 1 out of 5 by from Horrible quality I still am using my 24 year old Toro mower with original blade. I sharpen regularly. My Ryobi is less than a year and blade is shot. It seems to be made out of tin foil. Please offer a durable blade!
Date published: 2022-06-03
Rated 4 out of 5 by from Mower Blades I understand that Ryobi mower blades have to be made light. And in doing so, it makes the blades very easy to dull and ding up. But there has to be a better way to make these blades. My suggestion is to put a thin steel strip as the cutting portion of the blade. Or make a steel blade with many holes punched in it to reduce the weight. Something needs to be done.
Date published: 2021-10-29
Rated 3 out of 5 by from Better than Craftsman but... Ok, mower blades have gone cheep industry wide in recent years because people treat them as disposable instead of keeping them sharp and being careful so I can't criticize Ryobi for following the trend. However I can't help but wish for a sturdier option for mower blades since this is a proprietary product and I can't just replaced it with a Snapper blade, for example, which are made nice and heavy out of high grade steel and will last for years. It's frustrating that a single pebble just a quarter-inch in diameter can totally obliterate the edge on my $25 mower blade beyond all remedy. I'd be willing to pay more for a better blade Ryobi.
Date published: 2020-11-05
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