40V HP Brushless 21" Self-Propelled Mower

Model: #RY401140

4.7 | 527 Reviews
  • 40V HP Technology delivers GAS-LIKE POWER™
  • 3-in-1 Mulching, Bagging, and Side Discharge
  • Variable Speed Self-Propelled
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More Power. Longer Runtime. Longer Motor Life.


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*Tool Warranty

All RYOBI 40V tools are covered by a 5-year limited warranty.

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* Battery Warranty

All RYOBI batteries are covered by a 3-year warranty.

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Cutting Height
1.5" - 4"
Deck Size
74 lbs.


(2) 40V 6.0 Ah Battery
Deck Height Adjustments
7 Position Single Point
Estimated Runtime
70 mins.
Mowing Function
Bagging, Mulching, or Side Discharge
Recommended Yard Size
Up to 3/4 Acre


5 year tool warranty and 3 year battery warranty



40V HP Brushless 21" Self-Propelled Mower
40V HP BRUSHLESS 21" SELF-PROPELLED LAWN MOWER KIT is rated 4.8 out of 5 by 516.
Rated 5 out of 5 by from Great mower Bought this mower a couple of weeks back and have used it twice. Glad it came with 2 batteries as we needed them both to mow approx 1/2 acre of long damp grass. Getting used to it being self propelled is taking a bit of getting used to, but is handy for larger properties. The mower engine seems pretty powerful as it went through the longer grass without much issue, as long as the height adjustment wasn't set too low and the rear bag was used. The mulcher option should probably be reserved for smaller lots unless the grass is quite short and dry, as it will drain the batteries more quickly than using the rear bag option. The batteries take around 1 hr to charge. Overall I am very happy with this mower and would recommend it to others.
Date published: 2022-05-15
Rated 5 out of 5 by from Great product I received this mower yesterday, May 13, 2022. I am so happy I bought it. I used it and it is very easy to start and especially easy to maneuver around any obstacles in the yard. I have always had a gasoline lawnmower but after this one I will never buy another gasoline mower. I already own a Ryobi weed eater and a blower that also use 40V batteries.
Date published: 2022-05-14
Rated 3 out of 5 by from It has some great features. I have had this mower about 3 weeks. The catcher was very difficult to put together. The mower keeps stopping while I am mowing. Batteries fully charged. Otherwise, it does mow and mulch really good. Battery life is great. I like the vertical storage.
Date published: 2022-05-14
Rated 5 out of 5 by from Cuts great & excellent battery life! I bought this recently (moving from a gas mower), and have used it 3 times now. It does an excellent job cutting, and is very simple to get used to. The self propel feature takes a few minutes to get used to, as when you pull the lever to activate the drive motor, it has a slight pause, then eases itself up to speed. As for the battery life, well I am pleasantly surprised to be honest. I have an average size suburban front & back yard, and a full cut doesn't even use a full charge of one battery. Between the two batteries I easily get 2 full cuts, with juice to spare (not likely enough for a full 3rd cut).
Date published: 2022-05-13
Rated 4 out of 5 by from Easy to assemble and operate The mower is quite simple to assemble and perfect for regular suburban lots. Good value for money!
Date published: 2022-05-12
Rated 5 out of 5 by from Great features I bought it this week, so far looks great, my neighbors has one and loves it
Date published: 2022-05-11
Rated 5 out of 5 by from Smooth! I have a large lawn on a corner lot. I was skeptical about the 40V system but I am very impressed. Plenty of battery life and lots of power even using the high setting of the “cruise control”. The blade seems thinner than what I’m used to in the past and I will see how well it stands up to the occasional rock that inevitably finds its way onto the grass. So far I am VERY impressed!
Date published: 2022-05-11
Rated 5 out of 5 by from Automaticaly Easy Never had a self propelled mower. Makes it easier to push around and no more pulling the string!!! Would recommend
Date published: 2022-05-10
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