Search  for anything...

PowerSmart 21-Inch Self Propelled Gas Lawn Mower, 170cc OHV Engine, Rear-Wheel Drive, Steel Deck, 3-in-1 Walk-Behind Mower

  • Based on 461 reviews
Condition: New
Checking for the best price...
$319.99 Why this price?
Save $72.46 was $392.45

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during 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: Only 3 left in stock, order soon!
Fulfilled by Amerisun Inc

Arrives Aug 20 – Aug 22
Order within 1 hour and 17 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Set name: 21"-170cc


Features

  • Self-Propelled System: Rear-wheel drive provides strong traction on slopes and uneven terrain for confident control with less effort.
  • 170cc OHV 4-Stroke Engine: Auto choke and recoil start provide reliable starts, and the powerful OHV engine cuts through thick or wet grass efficiently for less mowing time.
  • Steel Deck: Durable steel construction is built for long-lasting performance.
  • 3-In-1 Versatility: Choose mulching, side discharge, or rear bagging to match seasonal lawn conditions.
  • 6-Position Height Adjustment: Quickly adjust cutting height from 1.5" to 3.9" with dual-lever control for clean, even cuts.
  • Foldable Handle: Easy-fold design, Folds for easy storage.

Description

Itasca, Illinois-based PowerSmart builds high-performance lawn mowers, snow blowers, and generators — small-engine equipment built for North American yards. Engineered, manufactured, and sold direct. No middleman, no markup. Just reliable power that shows up, season after season. Rear-wheel drive provides confident traction on slopes and uneven ground, making mowing smoother with less effort. A 21-inch cutting deck and self-propelled drive help you mow larger lawns faster with fewer passes and less time. The 170cc 4-stroke OHV engine delivers dependable starting and steady power to handle thick grass. Designed to deliver clean, even cutting performance for a well-maintained lawn with every pass. A high-efficiency blade provides ultra-fine clippings for nutrient recycle. Reduce clumps for quickly large open area mowing or cutting long deep grass. Easy-to-empty rear bag collect grass clippings and leaves for easy clean up. Features dual-lever height adjustment, allowing you to quickly set the cutting height. The durable steel deck built for long-term use. The foldable handle allows for compact, space-saving storage. 21" EasyDrive 22" EasyDrive Pro 22" EasyDrive Pro Combo 22" EasyDrive Pro 21" EasyGlide 18" EasyCut How difficult is assembly? The mower comes 90% pre-assembled and takes about 20 minutes to set up with no tools required. Just unfold the handle, tighten the knobs, install the grass bag, add oil and gas, and you're ready to mow. Will this handle a sloped yard? Yes. The rear-wheel-drive system provides better traction on hills and uneven terrain, helping you maintain control when mowing uphill. It is designed to handle slopes up to about 15° under normal conditions. What type of fuel and engine oil does it use? Use fresh 87-octane unleaded gasoline and SAE 10W-30 engine oil. Engine oil is not included, so you'll need to add it before first use. Use gasoline with no more than 10% ethanol (E10), avoid methanol, and never mix the oil with the gasoline. Why won't my mower restart after I just turned it off? If the engine is still warm, do not press the primer bulb before restarting. Additional priming may flood the engine and make restarting more difficult. Simply hold the safety bar and pull the starter rope.

Brand: PowerSmart


Power Source: Gasoline-Powered


Material: Alloy Steel


Color: Black


Style: 21" - 170cc Engine


Item Weight: 59 pounds


Cutting Width: 21 inches


Operation Mode: Self-Propelled


Product Dimensions: 56.5"D x 22"W x 42.5"H


Number of Items: 1


Brand Name: PowerSmart


Model Number: DB8621S


Number of Items: 1


Unit Count: 1 Count


Manufacturer: Amerisun Inc


Manufacturer Part Number: PRT-LM


Material Type: Alloy Steel


Item Weight: 59 pounds


Cutting width: 21 inches


Item Dimensions D x W x H: 56.5"D x 22"W x 42.5"H


Power Source: Gasoline-Powered


Operation Mode: Self-Propelled


Maximum Adjustable Cutting Height: 9.91 centimeters


Minimum Adjustable Cutting Height: 3.81 centimeters


Number of Positions: 5


Color: Black


Style Name: 21" - 170cc Engine


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 20 – Aug 22

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.

Top Amazon Reviews


  • Best Lawn Mover
Set name: 21"-170cc
This is a really good lawn mower. It’s very easy to assemble and the height can be adjusted easily. I would say this mower is lighter compared to other mowers, it does get the job done in a decent speed. The most important part is that it’s really durable: no breaks or scars after a month use.
Reviewed in the United States on August 2, 2026 by john s

  • Nice design
Set name: 21"-170cc
This 21 inch mower took less than 15 minutes to put together and start mowing. Comes complete except for the gas so its ready to go. It offers adustable cutting heights. Its self propelled so easy to use. It functions like a mower should and cuts very well. The compact size and foldable design is nice when it comes to storing. The engine is a 4 cycle 170 cc so it has the power we needed. When it comes to the engine is appears to be durable and has the power it should. It starts right up and has all the normal safety features. The grass clipping bag is easy to put on and take off. It holds a average amount of clippings. The tires are able to handle going down in to our ditch and back up with out hesitation. It did well cutting some of our thicker grass. Overall we are very happy with our purchase. ... show more
Reviewed in the United States on March 25, 2026 by Grandma's thoughts

  • Defective Mower
Set name: 21"-170cc
I purchased this mower March 22nd 2026. Initially it was an easy set up and worked great my first time using it. The next time using it I had to pull the cord about 60 times to get it to start. After that the starter cord locked up and I wasn’t able to do anything with it. I reached out within the time frame for a return and the company decided to sent me a new starter assembly rather than return/refund. I replaced the starter assembly and it was able to start up right away. Once I shut it off it wouldn’t start back up again. I pulled the cord multiple times and it ended up locking up again. The company requested I send in a video of my issue so I did. I have not heard anything back and now it is showing I’m past the date for return. So overall I paid $339 for my yard to be mowed once. ... show more
Reviewed in the United States on May 12, 2026 by Kylee McClatchey

  • Very satisfied!
Set name: 21"-170cc
This mower has been performing really well and has definitely exceeded my expectations. It starts up easily every time, runs smoothly, and has more than enough power to handle thick or overgrown grass without struggling. The cutting performance is excellent—the lawn looks clean, even, and professionally done after each use. It has also made yard work much faster and more efficient compared to my previous mower. The controls are simple and intuitive, which makes it easy to operate, even for longer mowing sessions. I also appreciate that it feels sturdy and well-built, giving me confidence that it will last over time. There was a minor issue with a missing part when I first received it, but customer service handled it quickly and professionally, so it didn’t affect my overall experience at all. Overall, I’m very happy with this mower. The strong performance, ease of use, and reliable support make it a great purchase, and I would definitely recommend it to others. ... show more
Reviewed in the United States on April 18, 2026 by Young Sung Kim

  • Not a bad push mower.
Set name: 21"-170cc
Damaged in shipping but, it work the way a mower should. Having the 3 options for cutting is nice. For the price it's not a bad little mower.
Reviewed in the United States on June 13, 2026 by Amazon Customer

  • PowerSmart 21” Self‑Propelled Mower
Set name: 21"-170cc
I’ve been using this mower for a little while, and it has worked really well. It starts up easily, and the self-propelled feature makes mowing much easier, especially in thicker grass. The 170cc engine has plenty of power, and the 21-inch deck helps finish the yard faster. I also like that I can choose to bag, mulch, or use the side discharge depending on what I need. It is a little heavier than I expected, but the rear-wheel drive makes it easy to handle. Overall, I think this is a great mower for the price, and I would recommend it to anyone looking for a reliable gas lawn mower. ... show more
Reviewed in the United States on July 15, 2026 by Ryan

  • It's better than a treadmill for exercise..
Set name: 21"-170cc
Put on your walking shoes when you pull the drive bar up your going. But it's not hard to push when trimming around bushes or flower beds. So far it cranks good and cuts even. Best part I find is deck height adjustment all 4 wheels at the same time. Grass catcher easy take off and on and empty. Not bad on gas neither and I've run it around 6 hours so far. Oil clean and right on the mark since I added it new. ... show more
Reviewed in the United States on June 12, 2026 by Charlie L

  • pretty and good quality
Set name: 22"-170cc
This mower works great for my yard. ,Assembly was straightforward with clear instructions. Noise level is better than expected—no complaints from neighbors. Great value for small to medium yards—highly recommend!
Reviewed in the United States on August 3, 2026 by Kyl

Can't find a product?

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