Amerisun 21-in Gas Self-Propelled Lawn Mower with 144cc Engine

Our take on the Amerisun 21-in Gas Self-Propelled Lawn Mower with 144cc Engine

The Amerisun 21-in is a gas self-propelled walk-behind mower with a 21-inch rotary deck and a 144cc engine. The self-propelled drive takes the push out of mowing medium yards, and the 21-inch deck is the common size for suburban lots. At $349.99 at Lowe's as of November 5, 2026, it is the only new price listed, so there is no recent range to compare it against. It sits in the budget end of gas self-propelled mowers, where most name-brand 21-inch models cost more.

Amerisun 21-in Gas Self-Propelled Lawn Mower with 144cc Engine prices at every store

Amerisun 21-in Gas Self-Propelled Lawn Mower with 144cc Engine price history

Lowest price we've seen: $349.99 on Nov 5 at Lowe's. Tracked across 1 store since Nov 5.

Questions and answers

Is the Amerisun 21-in mower worth $349.99?

At $349.99 at Lowe's as of November 5, 2026, it is cheap for a self-propelled gas mower. It suits a small, flat lawn. If your grass is thick or your yard is large, a bigger engine is worth the extra money.

How big a yard can a 144cc engine handle?

A 144cc engine on a 21-inch deck is best for lawns up to about half an acre with normal growth. Tall, wet or thick grass will slow it down, so mow more often or take a narrower cut.

Does it mulch, bag or side discharge?

The listing gives only the deck size and rotary blade system, so check the box contents before buying. Many mowers in this class include a rear bag and a mulching plug, but confirm what ships with this model.

Is it hard to start or maintain?

It is a standard gas engine, so expect a pull start, oil changes and fresh fuel each season. Store it with stabilized fuel or drained gas to avoid hard starts next spring.

When is the best time to buy a gas mower?

Gas mower prices usually drop at the end of the mowing season, from late summer into fall. With only one new price listed, watch for markdowns rather than expecting a wide price spread.

Where is the Amerisun 21-in Gas Self-Propelled Lawn Mower with 144cc Engine cheapest?

At Lowe's, for $349.99, as of our latest check.

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