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

The AMERISUN 21-inch self-propelled gas lawn mower is built to handle routine grass maintenance across medium and large properties. Driven by a 170cc 4-stroke OHV gas engine, it delivers dependable cutting power to tackle thick growth without bogging down. The self-propelled drive system reduces physical pushing fatigue, making it well-suited for homeowners with sloped or uneven ground.

Mobility is a central feature of the design. The mower combines 10-inch rear wheels with 7-inch front wheels to roll smoothly across bumps, hills, and uneven turf. For cutting flexibility, the 21-inch steel deck accommodates three disposal methods: mulching nutrients back into your turf, side discharging tall clippings, or collecting waste in the included 1.4-bushel rear grass bag to minimize emptying trips.

Tailoring the cut to seasonal conditions is straightforward thanks to a 6-position height adjustment system, which allows grass to be trimmed anywhere from 1.5 inches to 3.9 inches. The machine is housed within a heavy-duty steel deck for long-lasting structural strength. When the job is finished, the foldable handle collapses downward to save floor space in your shed or garage.

As a gas-powered model, this mower requires routine engine care, fresh fuel, and oil. The steel deck also adds physical weight compared to plastic alternatives, which may make lifting into a vehicle more demanding. Additionally, the manufacturer does not specify the overall unit weight or fuel tank capacity in the listing details.

Verdict: This self-propelled mower is a dependable choice for homeowners with medium to large yards who need reliable power on sloped or uneven ground. If you want flexible 3-in-1 disposal and versatile cutting heights in a sturdy steel build, it offers practical performance.

• Engine: 170cc 4-stroke OHV gas engine
• Deck Width: 21 inches
• Deck Material: Heavy-duty steel
• Drive Type: Self-propelled
• Wheel Sizes: 10-inch rear wheels, 7-inch front wheels
• Cutting Height: 6 positions (1.5 to 3.9 inches)
• Cutting Modes: 3-in-1 (side discharge, mulching, rear bag collection)
• Bag Capacity: 1.4 bushels

A great fit if you:

• Manage a medium or large yard with hills, slopes, or uneven ground.
• Need the power of a 170cc gas engine to cut thick, tall grass.
• Want the flexibility to switch between mulching, bagging, and side discharge.
• Have limited garage space and need a foldable handle for compact storage.

Consider something else if you:

• Prefer a lightweight cordless battery or corded electric lawn mower.
• Do not want to handle gasoline, oil, and small engine maintenance.

What are the options for handling grass clippings?
This mower features a 3-in-1 system that lets you choose between side discharge, mulching clippings, or bagging them using the included 1.4-bushel rear catcher.

What cutting heights does this mower support?
It features a 6-position height adjustment mechanism that allows cutting heights ranging from 1.5 inches up to 3.9 inches.

What size are the wheels?
The mower is equipped with large 10-inch rear wheels and 7-inch front wheels designed to help navigate slopes and uneven terrain.

How difficult is the mower to store?
The handle folds down, allowing the mower to take up significantly less space in your shed or garage.