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21" Steel Deck Self-Propelled Lawn Mower, 170cc OHV Engine with Forced Air-Cooling System, 3-in-1 Mulching, Rear Bag & Discharge, 6 Adjustable Cutting Height(1.5" to 3.9"), Easy Assembly & Maintenance

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$459.99 Why this price?
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Availability: Only 1 left in stock, order soon!
Fulfilled by SkyDay Official

Arrives Sunday, Jun 14
Order within 19 hours and 4 minutes
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Color: Black+Red


Features

  • POWERFUL 170CC OHV 4-STROKE ENGINE WITH FORCED AIR-COOLING The 170cc OHV engine with a Forced Air-Cooling System delivers consistent power, improved fuel efficiency, and extended durability, making it perfect for tackling thick grass with ease.
  • SELF-PROPELLED 21" STEEL DECK FOR EFFICIENT MOWING The rugged 21" steel deck enhances durability while providing a wide cutting area for faster mowing. Combined with self-propelled technology, it reduces effort, making mowing smoother and more efficient.
  • 3-IN-1 MOWING SYSTEM WITH LARGE GRASS BAG Choose between mulching, side discharge, or rear bag collection to suit different lawn conditions. The 1.4-bushel grass bag allows for longer mowing sessions with fewer interruptions, keeping your lawn pristine with minimal effort.
  • ADJUSTABLE CUTTING HEIGHT & ENHANCED MANEUVERABILITY The single-lever height adjustment system offers six cutting heights (1.5" to 3.9"), adapting to different grass types and seasons. The 7-inch front & 10-inch rear wheels improve stability and handling on uneven terrains.
  • QUICK ASSEMBLY & LOW MAINTENANCE Designed for hassle-free setup, this mower requires minimal assembly and straightforward maintenance. With easy-access components and a user-friendly design, keeping your mower in top condition has never been easier.

Brand: AMERISUN


Power Source: Gas Powered


Material: Alloy Steel


Color: Black+Red


Style: 21" 3in1 Self Propelled Gas Lawn Mower


Cutting Width: 21 Inches


Operation Mode: Automatic


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


Assembly Required: No


UPC:


Brand Name: AMERISUN


Model Number: AV8621S1


UPC: 840432709450


Manufacturer: AMERISUN


Item Type Name: Lawn Mower


Material Type: Alloy Steel


Power Source: Gas Powered


Number of Positions: 6


Operation Mode: Automatic


Maximum Adjustable Cutting Height: 9.91 Centimeters


Minimum Adjustable Cutting Height: 3.81 Centimeters


Cutting width: 21 Inches


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


Color: Black+Red


Style Name: 21" 3in1 Self Propelled Gas Lawn Mower


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Knowing what kind of engine power that you need
Color: Black+Red
This lawnmower was mostly put together. You just sort of have to put a few things here and there, but no big deal. This one has the power you need to cut the thicker grass. Just remember, I hire cc rating is generally a more powerful reading and can cut through thicker and to her grass. For example, an engine with a 130 cc engine is less powerful than an engine with a 165 cc engine. If you do not know this, you may be disappointed in any kind of lawnmower that you pick up and do not understand this concept. Anything rated over 160 cc I would recommend getting. This lawnmower is pretty tough. It has the power and it cuts very well. The value for the money was not too bad and it was a pretty good quality. The self-propelled feature is very strong so you won’t be disappointed in that either. ... show more
Reviewed in the United States on July 27, 2025 by “Doc”

  • LEMON - Did not work at all. Poor Amerisun customer service,
Color: Black+Red
Beware -it's NON-RETURNABLE .... Maybe this was a one-time problem, but this mower right out of the box, assembled, oiled, gassed, primed, checked spark plug and gas to carb, it would NOT start no matter what I tried. Called Amerisun via their number provided, but after 15 minutes no answer. Contacted Amerisun on their contact page but no response from there either. Amazon via chat refunded the full amount, and did not want the mower back (tells you something, no??) ZERO of 5 stars for this lemon. ... show more
Reviewed in the United States on February 13, 2026 by D Jacobs

  • Great buy works wonderfully
Color: Black+Red
Easy to put together, 15mins max. Cuts grass wonderfully and so smooth the self-propel makes for an EXTREMELY smooth and easy push even up hills. The only challenge we faced was knowing where to put the grass spout on the side. I referred back to a picture in the listing and it shows how it snaps on the side. I highly recommend it's worth the money. Looks sleek and large. ... show more
Reviewed in the United States on April 13, 2025 by Cbella

  • Decent mower at an affordable price
Color: Black+Red
This thing has been a beast so far. It has done a pretty good job but I've only used it twice. The one thing that I definitely have to take off a star for is the leveling system. It simply doesn't work properly. I don't know what's going on but I tried to start out on the second to highest level and as soon as I started mowing, it just dropped all the way down to the first one. It's not staying engaged in the notches. However, I was able to use a strap to hold the lever in place where I want it. Other than that, this seems like a pretty decent mower. I took it out of the box, finished assembly (it's mostly assembled), added the included oil and put some gas in it then primed it as the instructions say to do and it fired right up on the first pull. Every time that I've had to shut it off to move twigs and stuff out of the yard, it has started right back up. Zero problems with that. The self-propelled function works pretty well but the tires are slick so sometimes it can lose traction. Not a big deal though. Overall, I would say this is about what I expected for the price. The leveling function not working properly is annoying but I'll deal with it. ... show more
Reviewed in the United States on April 14, 2025 by Matt Cavin

  • Great purchase
Color: Black+Red
We love this mower! It was so easy to put together and it does an amazing job. We were a little skeptical ordering this type of product online however, it’s the best purchase we’ve made so far and very comparable to namebrand mowers for a fraction of the price
Reviewed in the United States on September 21, 2025 by Hippi3chk

  • Cheap and flimsy , one fixed speed
Color: Black+Red
It is one fixed speed , not the variable speed kind like I was used to, and the speed is very slow. The wheels catch and drag easily, say, if you’re mowing the area of grass that meets the street - the wheels will lock up and skid. The mower overheats easily. If I stop the mower to , say, move an object out of the way , it won’t re-start. I have to wait 15 minutes for it to cool down . I regret buying this one . Next time I will choose the “variable speed” kind with larger and heavier duty wheels. ... show more
Reviewed in the United States on May 13, 2025 by Jen

  • Great mower for my small lawn!
Color: Black+Red
Wonderful lawnmower! Starts every time! Wonderful design! Great price! Self propulsion is a bonus!
Reviewed in the United States on July 25, 2025 by b

  • Do not waste your time
Color: Black+Red
Horrible product. Cheap. Can not replace parts and customer service will not reply.
Reviewed in the United States on April 2, 2026 by CGN9598

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