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21 Inch Gas Push Lawn Mower (21Inch)

21 Inch Gas Push Lawn Mower (21Inch)

Best price now

$38.69at Mili MartChecked 32 min ago

85% under what the other stores charge

Compared across 10 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $38.69 at Mili Mart (checked Nov 15, 2026).
  • Checked at 10 stores.

Our take on the 21 Inch Gas Push Lawn Mower (21Inch)

A 21-inch push mower with a 144cc four-stroke gas engine, built for yards up to about half an acre. It has a 2-in-1 mulching and side-discharge setup and oversized wheels (8-inch front, 11-inch rear) that roll over roots and uneven ground more easily than small-wheel mowers. It suits homeowners with flat to gently sloped lawns who want gas power without cords or battery swaps. Against self-propelled and larger-deck rivals it asks more pushing effort and cuts a narrower path, but it is simpler and lighter to handle.

Best forSmall to mid-size yards up to about half an acreFlat to gently sloped lawnsHomeowners who want to avoid cords and batteriesRough or bumpy ground where big wheels help
Pros
  • 144cc four-stroke engine holds speed in thick grass
  • 21-inch deck covers ground faster than 20-inch mowers
  • 11-inch rear wheels roll over roots and ruts
  • 2-in-1 mulching and side discharge
  • No cords or battery charging
Cons
  • Push-only, so hills and large lawns take more effort
  • No rear bagging option listed
  • Gas engine needs oil, fuel and regular maintenance
  • Narrower cut than wide-deck riders and some 22-inch mowers

21 Inch Gas Push Lawn Mower (21Inch) prices at every store

  • The Home DepotNew

    In stock

    $239.00Free shippingChecked 32 min ago
    Visit The Home Depot
  • PowerSmartNew

    In stock

    $254.99Free shippingChecked 1 h ago
    Visit PowerSmart
  • WalmartNew

    In stockSold by DOBEST

    $259.99Free shippingChecked 1 h ago
    Visit Walmart
  • eBayNew

    In stock

    $419.99+ $64.00 shippingChecked 1 h ago
    Visit eBay
  • GardenProNew

    In stockReturn policy

    $561.99Checked 32 min ago
    Visit GardenPro
  • Mili MartNew

    Availability unknown

    $38.69Checked 32 min ago
    Visit Mili Mart
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $225.97Free shippingChecked 32 min ago
    Visit Amazon
  • powersmartusax.comNew

    Availability unknown

    $249.99Checked 1 h ago
    Visit powersmartusax.com
  • ShopNew

    Availability unknownSold by Shop app

    $254.99Checked 1 h ago
    Visit Shop
  • SearsNew

    Availability unknown

    $387.97Checked 1 h ago
    Visit Sears

Store links may earn us a commission.

21 Inch Gas Push Lawn Mower (21Inch) price history

Lowest price we've seen: $38.69 on Nov 15 at Mili Mart. Tracked across 9 stores since Nov 15.

About the 21 Inch Gas Push Lawn Mower (21Inch)

This is a 21-inch gas push lawn mower with a rotary blade. It has a 144cc 4-stroke gas engine, so it needs no cord or battery. It is made for residential yards and gardens, and it is suited to yards up to ½ acre.

The 2-in-1 system switches between mulching and side discharge. Side discharge suits tall or wet grass. The deck has a 21-inch cutting path. A dual-lever system sets the cutting height in 6 positions from 1.25" to 3.75", with no tools needed.

The mower has 8" front wheels and 11" high rear wheels for uneven ground. It comes with pre-assembled parts, step-by-step instructions and a tool kit. Assembly takes under 30 minutes. A 2-year warranty covers the engine, deck and wheels.

Brand
SENIX
Model
L6
Type
Rotary walk-behind push lawn mower
Engine
144cc 4-stroke gas
Cutting width
21 inches
Cutting modes
Mulching and side discharge (2-in-1)
Cutting height
6 positions, 1.25" to 3.75", dual-lever adjustment
Wheels
8" front, 11" rear
Color
Black
Assembly
Under 30 minutes, pre-assembled parts
Warranty
2 years, covers engine, deck and wheels
In the box
Tool kit and step-by-step instructions

Questions and answers

Is this mower good for a half-acre yard?
Yes. The 144cc engine and 21-inch deck are sized for yards up to about half an acre. Larger lawns are better served by a self-propelled or wider-deck mower.
Does it mulch and bag?
It is a 2-in-1 mower: mulching and side discharge. There is no rear bagging setup listed.
How does it handle slopes?
The engine is described as handling gentle slopes, and the large rear wheels reduce pushing effort. Steep hills are still hard work on a push mower.
What maintenance does the engine need?
Like any four-stroke, it needs engine oil, fresh gasoline and periodic oil changes and spark plug checks. That is more upkeep than a corded or battery mower.
How does it compare with a self-propelled mower?
It is simpler and lighter, but you supply the pushing force. Self-propelled mowers cost more and add drive-system maintenance but ease work on hills and large lawns.
What comes in the box?
The mower ships unassembled in part, typically with the deck, handle, wheels and manual. Check the listing for the exact contents and whether oil is included.
Where is the 21 Inch Gas Push Lawn Mower (21Inch) cheapest?
At Mili Mart, for $38.69, 85% under what the other stores charge, as of our latest check.
Where can I buy the 21 Inch Gas Push Lawn Mower (21Inch)?
10 stores we checked sell it, including GardenPro, Mili Mart, The Home Depot, Amazon, powersmartusax.com.

Stores we've priced the 21 Inch Gas Push Lawn Mower (21Inch) at

  • Mili Mart deals and prices
  • Sears deals and prices
  • Shop deals and prices
  • The Home Depot deals and prices
  • Walmart deals and prices

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