Search  for anything...
PowerSmart

PowerSmart 21" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System

  • Based on 44 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$357.17 Why this price?
Holiday Deal · 6% off was $379.99

Buy Now, Pay Later

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

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

Learn more about financing & leasing here.

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

Features

  • POWERFUL B & S ENGINE: Featuring a robust 140cc BS EX550 engine, this mower delivers exceptional cutting power for a pristine lawn. The auto choke and recoil starter ensure quick and effortless starts.
  • HEAVY-DUTY STEEL DECK: Built with a 21-inch steel cutting deck, this mower is designed for durability and efficiency, making it perfect for large lawns and tough conditions.
  • 6 ADJUSTABLE CUTTING HEIGHTS: Customize your lawn care with 6 height settings, allowing you to adapt to different grass lengths and seasonal needs for a professional finish.
  • 3-IN-1 VERSATILITY: Easily switch between mulching, bagging, and rear discharge modes to suit your lawn care preferences and achieve a well-maintained yard.
  • SELF-PROPELLED EASE: The self-propelled feature reduces user effort, especially on uneven terrain or large yards, making mowing a hassle-free experience.

Brand: PowerSmart


Power Source: Gas Powered


Material: Alloy Steel


Color: Red


Style: Self Propelled


Item Weight: 70 Pounds


Cutting Width: 21 Inches


Operation Mode: Automatic


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


UPC:


Brand: PowerSmart


Power Source: Gas Powered


Material: Alloy Steel


Color: Red


Style: Self Propelled


Item Weight: 70 Pounds


Cutting Width: 21 Inches


Operation Mode: Automatic


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


UPC: 840432706619


Wheel Size: 29.5 Inches


Maximum Adjustable Cutting Height: 3.9 Inches


Minimum Adjustable Cutting Height: 1.5 Inches


Manufacturer: PowerSmart


Item Weight: 70 pounds


Item model number: B8721S1


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
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Awesome, Highly recommend
Love this thing. My only regret is I wish i went bigger. Easy set up out of the box and she started right up. Could not have been happier/surprised and it got even better as i used it. Super easy to use self propelled and easy to take out and empty the trimming bag. light weight good on gas, really have nothing to complain about very happy and would highly recommend. ... show more
Reviewed in the United States on September 9, 2025 by Ryan Smith
    • Una excelente máquina cortacésped , es una muy buena opción de compra
Review Image by Marbin Piloto Torres Marbin Piloto Torres
Excelente máquina cortacésped
Reviewed in the United States on September 19, 2025 by Marbin Piloto Torres Marbin Piloto Torres
    • Sorry I purchased it. Shockingly bad.
No way to adjust walking speed, you’ll have to run to keep up with it. Carburetor floods every few minutes requiring a ten minute wait. . A piece fell off the bottom on the first use. It guzzles gas. This mower is terrible and it’s hard to believe it was manufactured by a major company. Shockingly bad. ... show more
Reviewed in the United States on October 20, 2024 by NI3F
    • Easy to operate
It takes the sweat out of mowing.
Reviewed in the United States on November 14, 2024 by Noble Lee Lester
    • Good buy.
Overall, for the price a good mower.
Reviewed in the United States on August 17, 2025 by Susan L
    • Lawn mowet
Just what I was looking for
Reviewed in the United States on November 13, 2024 by Kindle Customer
    • Lawn Mower with no customer service backing.
Bought this mower thinking it would help keep up my lawn. On the first mowing the power cable broke after mowing half the lawm. Called to register warrenty and 5 times that department told me no one was there to help. Then tried customer service and after waiting 1 1/2 hours on lhold got a person. She took my information and said need proof of purchase. I mailed this to her. She took my e-mail address and was to let me know where to take mower after warrenty was complet. Of course no return e-mail I am about to the point of taking to repair shop and paying for repair. ... show more
Reviewed in the United States on June 6, 2025 by Arthur Ludka
    • Not worth the money
Used it one time, bag and flaps already have holes, so poor durability. Will not start or run when attempting second use.
Reviewed in the United States on September 28, 2025 by Bill Wilson

Can't find a product?

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