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PowerSmart 21-Inch Gas Lawn Mower with B&S Engine, 3-in-1 (Bag/Mulch/Rear Discharge), Self-Propelled, 6 Cutting Heights, Durable Steel Deck, Rear-Wheel Drive

  • Based on 309 reviews
Condition: New
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Availability: In Stock.
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Arrives Thursday, Nov 6
Order within 4 hours and 26 minutes
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Style: 140CC B&S EX550 Self Propelled


Features

  • POWERED BY A RELIABLE B&S ENGINE: Equipped with a powerful 140cc B&S engine, known for its smooth start-up, consistent performance, and long-term durabilityideal for tough mowing jobs.
  • 21-INCH CUTTING WIDTH FOR HIGH EFFICIENCY: The robust steel deck covers a wide 21-inch path, reducing mowing time and making it perfect for medium to large yards.
  • 3-IN-1 FUNCTION: BAGGING, MULCHING & REAR DISCHARGE: Switch easily between modes: collect clippings in the 1.4-bushel bag, mulch to nourish your lawn, or rear-discharge for quick and efficient mowing.
  • 6-POSITION HEIGHT ADJUSTMENT: Quickly adjust the cutting height from 1.5"" to 3.9"" with a single lever to match grass length, season, or preferred lawn look.
  • SELF-PROPELLED WITH LARGE REAR WHEELS: Rear-wheel drive and 10"" large rear wheels offer excellent traction and maneuverability on slopes or uneven terrain.

Brand: PowerSmart


Power Source: Gas Powered


Material: Alloy Steel


Color: Black,red


Style: 140CC B&S EX550 Self Propelled


Item Weight: 31.75 Kilograms


Cutting Width: 21 Inches


Operation Mode: Manual


Product Dimensions: 32.9"D x 16.5"W x 22.6"H


UPC:


Brand: PowerSmart


Power Source: Gas Powered


Material: Alloy Steel


Color: Black,red


Style: 140CC B&S EX550 Self Propelled


Item Weight: 31.75 Kilograms


Cutting Width: 21 Inches


Operation Mode: Manual


Product Dimensions: 32.9"D x 16.5"W x 22.6"H


UPC: 840432709832


Maximum Adjustable Cutting Height: 3.9 Inches


Minimum Adjustable Cutting Height: 1.5 Inches


Manufacturer: PowerSmart


Item Weight: 69.9 pounds


Item model number: B8721S2


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 6

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • Great mower
Style: 140CC B&S EX550 Self Propelled
Works amazing, we had an electric mower but it just couldn't keep up with a big yard. This works much better and the self propel feature is the best.
Reviewed in the United States on October 1, 2025 by Amazon Customer

  • It works perfect!
Style: 140CC B&S EX550 Self Propelled
The lawnmower works perfectly fine, good for a small yard. It came broke from the plastic base that hold the front wheel but they refunded the money. It has oils all over, nothing impossible to fix, besides that, the engine is strong and it does what’s supposed to do.
Reviewed in the United States on August 3, 2025 by Me enviaron mi laptop con un procesador inferior y el vendedor no se hizo responsable. Me enviaron mi laptop con un procesador inferior y el vendedor no se hizo responsable.

  • Broke first use
Style: 21in Gas 125CC B&S
You get what you pay for sometimes. I bought this because my very old riding mower finally bit the dust and I needed something quick and affordable. All in all it was easy to assemble and start and it cuts decent however a knob that holds the handle on must of come loose and fell off during operation despite me making sure everything was tight and I of course could not find it in the grass and I ended up having to use zippy ties to keep the handle on to finish cutting. I reached out to the company but have not gotten a response yet. I will revise my review if I can get a replacement knob. 7/24 Still no response from company ... show more
Reviewed in the United States on July 21, 2025 by Jenkchil

  • Nice For The Price MOWER!
Style: 140CC B&S EX550 Self Propelled
Easy to set up! Comes with oil and manual. Good price-Briggs&Stratton power, bag AND SELF-Propelled. Second pull usually starts it and it’s a nice mower. It’s getting so mowers just don’t last very long anymore, too bad. I’ll see how this one works. Follow instructions, splash a tablespoon of 2-cycle oil in the spark plug hole, start it for a minute then turn it off. The rings need to seal. ... show more
Reviewed in the United States on August 10, 2025 by Laurence J.

  • Good mower, decent quality, fair price
Style: 140CC B&S EX550 Self Propelled
This is good deals the self start no prime is good feature. Haven’t had any issue this whole summer. Simple to put together and the give you the proper amount of oil to go with it…don’t forget to put it in. The rear grass flap I guess it’s called does come a little loose but doesn’t affect the operation. ... show more
Reviewed in the United States on September 3, 2025 by dave

  • Been great so far.
Style: 140CC B&S EX550 Self Propelled
We needed a mower quick as our grass was growing and our other mower just died on us. This came quickly, was easy to assemble, and starts on the first try every time. The self-propel is powerful and will take off on you if you aren’t prepared. I wish it would get just a bit lower but it does a nice job. I do feel like the gas tank is a bit smaller than some others. ... show more
Reviewed in the United States on September 29, 2025 by Blondyash

  • Starts Easily--Cuts long grass
Style: 140CC B&S EX550 Self Propelled
My son put this together for me in less than a half hour. He said it was easy to assemble. It runs great and usually starts with the first pull--I am 75 so maybe always on first pull for younger mowers. I live in Florida and the grass has been growing so fast this year that my electric mower could not handle it. This mower cut through the longest grass with no problems. WARNING: The self-propelled mower does not have a primer or choke like it says in the written directions. It does tell you this on the mower which my husband pointed out to me. I love it and highly recommend it. ... show more
Reviewed in the United States on August 14, 2025 by Nai-Nai

  • DO NOT BUY!
Style: 140CC Self Propelled
DO NOT BUY !!!! ABSOLUTE JUNK - This lawnmower lasted only 11 months, with about 3 months of no use so really 8 months before the self propel drive broke. The closest service company is 80 miles away, I cannot find a repair service in my area that will touch this mower, I wonder why, so I am faced with a 160 mile roundtrip to have someone "authorized" to look at it and put in writing to the warranty department what needs to be fixed. Assuming it is then fixed I would have another 160 mile round trip to get the mower back. Poor service all the way around. Would give zero stars if that was an option. ... show more
Reviewed in the United States on October 1, 2025 by Thomas Logan

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