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

AMERISUN

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

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7.6/10
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Highlights

  • 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 terrain—providing 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.

Why You'll Love It

  • Self-propelled drive system moves the mower forward to reduce pushing effort across varied terrain
  • Auto choke ignition and 170cc 4-cycle engine provide quick starts without manual priming
  • Versatile 3-in-1 design lets you switch easily between mulching, side discharge, and rear bagging
  • Six cutting height positions from 1.5 to 3.9 inches adapt to seasonal lawn needs
  • Sturdy steel deck and 1.4-bushel rear collection bag hold plenty of clippings
  • Foldable handle design allows for compact storage in your garage or shed

Pros

  • +Self-propelled drive reduces pushing fatigue
  • +Quick-starting auto choke 170cc engine
  • +Flexible 3-in-1 grass management options
  • +Six cutting heights from 1.5 to 3.9 inches
  • +Durable steel deck and folding handle

Cons

  • -Requires ongoing gas and oil maintenance
  • -Listing does not state mower weight

Detailed Review

The AMERISUN 21-Inch Self-Propelled Gas Lawn Mower delivers dependable cutting power for homeowners who want to maintain their yard without fighting heavy pushing resistance. Powered by an air-cooled 170cc 4-stroke OHV engine, it features an auto choke ignition system that simplifies starting, eliminating the guesswork of manual priming or choke adjustments.

Its self-propelled drive helps guide the machine across uneven or varied ground, saving time and physical effort during regular yard care. The 21-inch heavy-duty steel deck provides a wide cutting path, while the 6-position height adjustment system lets you select blade heights ranging from 1.5 to 3.9 inches for a tailored lawn finish throughout different growing seasons.

Grass disposal is flexible thanks to 3-in-1 functionality. You can choose to mulch clippings back into the turf, route them out through the side discharge, or collect them in the included 1.4-bushel rear grass catcher bag to minimize mess. When your yard work is done, the handle folds down to help the mower fit neatly into tight shed or garage spaces.

As with any gas-powered lawn equipment, this mower will require routine engine fuel and oil upkeep rather than simple battery charging. Additionally, the manufacturer does not specify the exact unit weight or whether the self-propelled drive runs at a single fixed pace or variable speeds.

Verdict: The AMERISUN 21-Inch Gas Mower is a solid choice for homeowners looking for a versatile, self-propelled walk-behind mower with flexible bagging options and straightforward starting.

Specifications

  • Engine Displacement: 170cc OHV 4-stroke
  • Engine Features: Auto choke ignition, air-cooled
  • Cutting Width: 21 inches
  • Deck Material: Steel
  • Discharge Options: 3-in-1 (mulching, side discharge, rear bagging)
  • Cutting Height Range: 6 positions (1.5 in to 3.9 in)
  • Grass Catcher Capacity: 1.4 bushels
  • Handle: Foldable

Who Should Buy It

A great fit if you:

  • Need a self-propelled mower that reduces pushing effort on uneven ground.
  • Want multiple clipping options, including mulching, side discharge, and bagging.
  • Prefer an auto choke gas engine that starts without manual choke adjustments.
  • Have limited garage space and need a foldable storage handle.

Consider something else if you:

  • Prefer battery-electric equipment with zero engine oil or gas maintenance.
  • Want an ultra-lightweight composite or plastic deck mower.

FAQ

Does this mower require manual choking to start?
No, the 170cc 4-cycle engine features an auto choke ignition system designed to simplify the starting process.

What are the cutting height options?
The mower offers 6 adjustable cutting height positions ranging from 1.5 inches to 3.9 inches.

How do you handle grass clippings with this model?
It features 3-in-1 capability, allowing you to mulch clippings, use side discharge, or collect them in the included 1.4-bushel rear catcher bag.

Photos

AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 1
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 2
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 3
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 4
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 5
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 6
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 7
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 8
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 9
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 10
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 11
AMERISUN 21" Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower photo 12

Product Specs

SpecificationDetails
Brand NameAMERISUN
Model NumberAV8621S1
Number of Items1
UPC840432712481
Unit Count1 Count
Number of Packs1
ManufacturerAMERISUN
Item Type NameGas Lawn Mower
Manufacturer Part NumberAV8621S1
Best Sellers Rank#9,143 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #31 in Walk-Behind Lawn Mowers
ASINB0GHR71YXG
Customer Reviews3.8 3.8 out of 5 stars (517) 3.8 out of 5 stars
Cutting width21 inches
Item Dimensions D x W x H32.9"D x 16.5"W x 22.6"H
Wheel Size10 inches
Power SourceGas Powered
Operation ModeAutomatic
Maximum Adjustable Cutting Height3.9 inches
Minimum Adjustable Cutting Height1.5 inches
Number of Positions6
ColorBlack
Style NameRotary
BrandAMERISUN
StyleRotary
Cutting Width21 inches
Product Dimensions32.9"D x 16.5"W x 22.6"H
Item Highlight6-Position Cutting Height, Mulch, Side Discharge & Bagging With 1.4-Bushel Grass Catcher For Versatile Lawn Care See more

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