Search  for anything...
AMERISUN

AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower

  • Based on 519 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$264.68 Why this price?
Save $134.32 was $399.00

Buy Now, Pay Later

As low as $44.11 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

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

View our full returns policy here.

Availability: Unavailable
Fulfilled by Amazon
Available payment plans shown during checkout

Recently Viewed

Set name: 3IN1 Self-propelled Lawn Mower


Features

  • 170CC 4-CYCLE ENGINE WITH AUTO CHOKE: Delivering steady performance, the 170cc OHV 4-stroke engine powers this gas lawn mower with ease. Auto choke ignition simplifies starting, while its air-cooling system ensures lasting operation. Ideal for users who prioritize a durable lawn mower gas powered option
  • SELF-PROPELLED LAWN MOWER: The self-propelled drive reduce effort, save time, deliver precise cuts, and adapt effortlessly to any terrainproviding unmatched comfort and efficiency, especially for first-time users.
  • 3-IN-1 LAWN MOWER: Choose between mulching, side discharge, or bagging to keep your yard clean and efficient. With a 1.4-bushel capacity, the rear grass catcher makes this gas lawn mower both versatile and lawn-friendly
  • 6-POSITION ADJUSTABLE CUTTING HEIGHT (1.5-3.9) Customize your cut with this 21-inch gas lawn mower by quickly switching between 6 height settings, ensuring a clean and professional finish for every season.
  • DURABLE STEEL DECK WITH GRASS CATCHER & FOLDABLE HANDLE: Built to last with a heavy-duty steel deck and 1.4-bushel grass catcher, this self-propelled gas mower reduces trips to empty and folds for compact storage. Easy assembly gets you mowing in minutes.

Description

Proudly American-born and made in the USA, our mission is to deliver tech-driven, rugged generators, lawnmowers, snow blowers and pressure washers—elevating outdoor care with smart performance to nurture vibrant, thriving spaces worldwide. Amerisun 21-inch gas lawn mower with 2-in-1 cutting delivers strong performance and clean results for easy, efficient mowing. Amerisun 14-inch corded 2IN1 lawn mower delivers steady electric power, lightweight control, and efficient mowing for small lawns. Amerisun 3800 PSI gas pressure washer tackles tough grime with steady power, rugged durability, effective cleaning for any job. Amerisun 21-inch 3IN1 self-propelled gas lawn mower delivers smooth control, strong power, and versatile lawn care. Strong, steady cutting performance powered by a 170cc OHV engine. Work smarter with fuel-saving power that goes the distance. Run cooler, run longer with a powerful forced air-cooling system. Mow smarter, not harder – let the self propelled drive power through your yard with ease. Choose your cut—mulch for quick, bag-free cleanup or side discharge to power through tall grass. 1.4-bushel catcher collects clippings neatly for a cleaner, mess-free lawn. Get wide, lasting coverage with a tough 21" steel deck—perfect for small to medium yards. From 1.5" to 3.9" (6 positions) customize your cut for the ideal lawn finish. This mower is designed for your convenience—easy to assemble right out of the box and just as simple to store away. Its compact, foldable design saves space in your garage or shed, making lawn care stress-free from start to finish. 3-in-1 21" (SP) 3-in-1 21" Gas 2-in-1 21" Gas 2-in-1 14" Electric

Brand: AMERISUN


Power Source: Gas Powered


Color: Black


Style: Rotary


Cutting Width: 21 inches


Operation Mode: Automatic


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


Number of Items: 1


Item Highlight: 6-Position Cutting Height, Mulch, Side Discharge & Bagging With 1.4-Bushel Grass Catcher For Versatile Lawn Care See more


UPC:


Brand Name: AMERISUN


Model Number: AV8621S1


Number of Items: 1


UPC: 840432712481


Unit Count: 1 Count


Number of Packs: 1


Manufacturer: AMERISUN


Item Type Name: Gas Lawn Mower


Manufacturer Part Number: AV8621S1


Cutting width: 21 inches


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


Wheel Size: 10 inches


Power Source: Gas Powered


Operation Mode: Automatic


Maximum Adjustable Cutting Height: 3.9 inches


Minimum Adjustable Cutting Height: 1.5 inches


Number of Positions: 6


Color: Black


Style Name: Rotary


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

This item is non-returnable:

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

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Excellent Quality, Price, & Function!
Received well packaged in excellent condition. All parts and paperwork present. It came with the proper 13.5 ounces of crankcase oil. 1-3 pumps on the primer bulb when cold and 1 pull to crank it. No manual choke or throttle speed to mess with. When hot, 1 pull starting... very nice! When you first run it it, the muffler and top of the engine area will smoke a little as the paint heat cures. It goes away quickly. Good power...144cc engine just as good and powerful as a 200 cc motor in another mower I bought. Assembly is fairly simple, quick, and no tools needed. The handle bar is the only assembly needed. I did need to use a screw driver through a hole to straighten the height lever as it was a little sideways... works good though! 1 lever for all 4 wheels height adjustment. Feels well made and sturdy. Just be mindful of the plastic deflector if you hit something with it. It will need to be repositioned... easy to do with the mower off. Deck feels like it's good quality. I am impressed! It's made in China but well made. I would but it again as needed. You might need to sharpen the blade a little as most blades shipped on mowers are a little dull to cut down on cut injuries while handling it out the box. Price is excellent. Shipping was excellent and remember UPS will need a signature upon delivery. I didn't have to sign anything as I was at home. The high wheels in the back help to maneuver the mower. Padded top handle. Fairly easy to pull crank it. It should last a long time. No smoke at all out the exhaust. It has a decent weight as it's made good. I had no problem cutting tall grass and weeds. ... show more
Reviewed in the United States on June 11, 2026 by HeavyHarrison
    • As advertised
Set name: 3IN1 Self-propelled Lawn Mower
Solid machine. Just put oil and gas in it and you are set. Starts right up. It is HEAVY and im 6’4” 220#s. It’s a pain in the but in tight areas. Straight shots there is minimal effort required. The handle pad is starting to rip but some athletic tape fixed that. For the price it’s worth it
Reviewed in the United States on June 10, 2026 by Dennis Heban
    • Pleasantly Surprised
Set name: 3IN1 Self-propelled Lawn Mower
Review Image by Lori C FL
Review Image by Lori C FL
Let's face it, it's the cheapest self propelled mower on Amazon. So let me tell you what I found after I assembled and mowed today. 1) Easy to assemble. (Although I had an extra screw in the bottom of my box, it didn't appear to be missing from anywhere). 2) Started on the first pull. 3) It did a good job mowing through my weeds/grass. Disappointing was the speed of the self propelled. But based on the purchase price I found it acceptable. It wasn't slow, but I am 65 years old and I can push it faster without self propelled. That being said, this mower is not that heavy, thus if you want to push it w/o self propelled I found it doable...which is helpful around flower beds, etc. My last mower was front wheel drive so the rear wheel drive takes a little getting used to. With the old one I could just lift the front wheels off the ground and pivot 90-180 degrees. It's not a big deal, again just takes a few uses to become 2nd nature. For the price, I thought it was an excellent purchase. I did buy the 3 year protection plan since it was a "no-name" mower and not returnable. It gave me a bit of peace of mind when I found that extra screw in the box. LOL. ... show more
Reviewed in the United States on June 6, 2026 by Lori C FL
    • Definitely a 5-star mower.
Set name: 3IN1 Self-propelled Lawn Mower
⭐⭐⭐⭐⭐ 5-Star Review – AMRISUN 21" Self-Propelled Lawn Mower I used my AMRISUN 21" self-propelled lawn mower for the first time today, and I’m seriously impressed. The 170cc engine has plenty of power and handled my yard with ease, even through thicker grass. The self-propelled drive makes mowing effortless, which is a huge plus if you have a medium to large yard. What really stood out was how well the mulching feature works. It chopped the clippings up super fine and spread them evenly across the lawn. I also tried the grass bag collection, and it filled efficiently without clogging. Switching between mulching and bagging was quick and simple. The mower feels solid, easy to maneuver, and starts reliably. For the price and performance, this mower absolutely exceeded my expectations. If you're looking for a powerful, easy-to-use mower with excellent mulching and bagging performance, the AMRISUN 21" is a fantastic choice. Highly recommend! Definitely a 5-star mower. ... show more
Reviewed in the United States on March 6, 2026 by Amazon Customer
    • Works great til it doesn't
Set name: 3IN1 Gas Lawn Mower
I loved this mower for the year I had it. Some breakage of plastic parts but overall a great experience. 1 year out, the head gasket has failed entirely. Extremely disappointing.
Reviewed in the United States on August 23, 2026 by Lauren
    • An inexpensive lawnmower.
It's an inexpensive, simple lawnmower. I'm pretty pleased with it. If you need a mower, but don't have a lot of cash, this is worth checking out. I did, and I'm glad.
Reviewed in the United States on July 23, 2026 by dahveed
    • I like, but fake wheels
Set name: 3IN1 Self-propelled Lawn Mower
I needed to get a self powered mower, this one worked for me. Runs well, cuts well and has enough power for the mulch setup, which I prefer vs bagging or throwing the grass. BUT: I just with I had noticed the pretend wheels in the pictures. For this price point I feel it should have real wheels. Manufacturer should just make a change to real wheels at this price. It is non-returnable, even with Prime. ... show more
Reviewed in the United States on May 16, 2026 by Ken
    • Product quality
Set name: 3IN1 Gas Lawn Mower
A good quality lawn mower for the price'
Reviewed in the United States on May 28, 2026 by wilsondoctor

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...