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PowerSmart 21" B&S Engine 140cc Self-Propelled Lawn Mower – Durable Steel Deck, 6-Height Adjustments, 3-in-1 Mulching Versatility

  • Based on 30 reviews
Condition: New
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$379.99 Why this price?

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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, May 6
Order within 6 hours and 33 minutes
Available payment plans shown during checkout

Style: Self-propelled


Features

  • POWERFUL 140CC B&S ENGINE:Equipped with the trusted B&S EX550 engine, this lawn mower delivers unmatched power and precision. With its easy-pull recoil and auto choke system, starting is effortless and stress-free.
  • 3-IN-1 VERSATILITY:Switch effortlessly between EFFICIENT BAGGING, NATURAL MULCHING & REAR DISCHARGE. Bagging collects clippings neatly into a large-capacity grass bag, keeping your lawn clean and tidy. Mulching finely shreds grass clippings and redistributes them to enrich the soil, reducing the need for fertilizer. Rear discharge quickly expels clippings from the back, ideal for covering larger areas without interruption.
  • ROBUST STEEL DECK:Crafted from heavy-duty alloy steel, the 21-inch cutting deck ensures long-lasting durability and efficient mowing. It covers large areas quickly, making lawn care less time-consuming and more effective.
  • CONVENIENT INSTANT START:Simply pull the cord to start no need to press a primer bulb! Quick and easy ignition gets you mowing in no time.
  • ADJUSTABLE CUTTING HEIGHTS:Featuring 6 height settings, this mower adapts to your lawn's needs. Whether you prefer a clean, low trim or a lush, higher cut, it's easy to customize for every season.

Brand: PowerSmart


Power Source: Gas Powered


Color: Red


Style: Self-propelled


Cutting Width: 20.98


Number of Positions: 6


Operation Mode: Automatic


Product Dimensions: 29.5"D x 16.5"W x 20"H


UPC:


Manufacturer: PowerSmart


Brand: PowerSmart


Power Source: Gas Powered


Color: Red


Style: Self-propelled


Cutting Width: 20.98


Number of Positions: 6


Operation Mode: Automatic


Product Dimensions: 29.5"D x 16.5"W x 20"H


UPC: 840432709146


Manufacturer: PowerSmart


Item Weight: 72.8 pounds


Country of Origin: USA


Item model number: B8721S2


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 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!
Our new lawn mower arrived 2 days early and in great condition! Thanks UPS. We checked our instructions and were delighted to find it was easy to assemble. Starts on the first or second pull. It cuts very well. We have about a 1 1/2 acre yard and it tends to be wet (swampy). The tires did not get great traction in the really wet areas, but everywhere else it did just fine. The self-propel is very responsive. Also, a note**, they recommend you use regular 10W-30 oil, which was different from my previous mower, which had a combination of oil and gas mix. This is more convenient, as I can get that anywhere. Also, took advantage of the five payment plan, no interest, any credit card. That was a big help! ... show more
Reviewed in the United States on April 5, 2025 by Donna

  • Came with lift lever broken off.
Like I said, the lift lever was found in the bottom of the box. We bought this in February and it's past time to return. The box arrived undamaged so we assumed everything was OK. The mower has no damage to explain how this lever broke off. The wheels. The deck are perfect. Now, let the fun begin. I call customer service. It has a 2 year warranty. Well I need to register it before I can order the part. So, I make a second call and send them the receipt and information they need. Now, I don't know if and when they will send the part. But on closer inspection, this part was riveted on. There's no way I can get the end out to put a new one In. The wheel will have to be taken off and the broken piece remaing drilled out. This is factory work. I can't do this myself. I don't have the tools. My husband and I are not in the best of health. That's why I wanted self propelled. It's a small yard and I thought it would be manageable. It would if the mower worked. Well it does. I bought gas and oil and started it up before realizing there was no way to lift the deck. It started the first pull. I worked in small engine parts and repair. Mowers were the main business along with chainsaws. I know the work needed here. It's not an easy fix. Meanwhile, my grass has that spring growth spurt going on. So I was faced with hiring a lawn service or getting another mower. I rented one just to get my lawn in order before the city slaps a fine on me. Yes, they do that here. And the one I rented did a fine job. The best first cut I've ever seen. I did all this after coming home from work. It was a long day but had to be done. I'll update if it's needed. But that's my story with this mower. It does start on a dime. I'll give it that. But I'm not happy being out $400.00. ... show more
Reviewed in the United States on April 8, 2025 by Judy Durst

  • Easy to assemble.
Used once. So far so good.
Reviewed in the United States on April 16, 2025 by marguerite shipman

  • Has power and is simple and fun to use
It has no problem cutting tall and hard clumps of grass. The self propelled feature seems to work great and makes cutting way easier. It also starts with ease and is easy to use overall. The blade seems to be in good shape even after hitting some branches, and still cuts great after alot of use. The only slight downside is that the wheels are plastic and dont have as much grip as rubber wheels, but you could probably replace them. Also, I wish the gas tank was a bigger, but it has good gas efficiency and I couldnt complain for the price. Overall, it's great, inexpensive and fun to use. No problems as of now, and has no trouble cutting alot of grass. ... show more
Reviewed in the United States on March 25, 2025 by Moreno

  • Manual not correct about oil amount.
Virtually no assembly. Started right up on first pull. My only criticism so far is the manual says it takes 15.8 oz. of oil. It came with a 13.5 oz. container of oil. I dispensed this into the mower and the dipstick read right where it is supposed to. If it had not come with oil I would have followed the manual's amount and overfilled. It's still a few weeks early in year to have to begin mowing, but this mower seems well built and I'm sure it will perform well. ... show more
Reviewed in the United States on March 15, 2025 by Zen Master

  • Not worth the money
Terrible design with the pulley at the top. Also, the tires are very much plastic. The set up makes it a poor set up to pull and close the handle at the same time.
Reviewed in the United States on March 27, 2025 by HELEN BENAVIDEZ

  • Buyer beware. Item is not as described. Very hard to use.
The product description states that it has instant start. No need to have to use pull start. That is false. Also the self propel has two speeds. Fast and faster. Changing directions is very difficult. This causes the wheels to spin and dig out the lawn. The wheels are hard and dig in when making turns. This item is not returnable. I would if I could. Very disappointed. ... show more
Reviewed in the United States on March 29, 2025 by KS

  • Easy to assemble out of box. Took me a total of 5 minutes max.
Assembled easy! Got a pint of free oil with it, put everything into its place and gassed it up. One pull. Cold engine, freshly gassed, and it started with that single pull! NICE! It was easy to start and even easier to use. Well done! 5 Stars! If I could I'd give it 10 stars!
Reviewed in the United States on March 10, 2025 by kdddavswife

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