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AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with vs MZK 40V 16" Electric Lawn Mower, 2-in-1 Brushless

Updated July 2026 — AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with wins on engine size and cutting width, MZK 40V 16" Electric Lawn Mower, 2-in-1 Brushless wins on runtime and weight.

The AMERISUN mower offers more power and versatility, making it a better choice for larger lawns, while the MZK is convenient for smaller spaces.

Why AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with is better

Cutting Power

AMERISUN has a 144cc gas engine.

Cutting Width

AMERISUN features a 21-inch cutting width.

Versatility

AMERISUN offers 3-in-1 functionality.

Why MZK 40V 16" Electric Lawn Mower, 2-in-1 Brushless is better

Runtime

MZK provides up to 45 minutes of runtime.

Eco-Friendliness

MZK is a cordless electric mower.

Ease of Use

MZK requires no fuel maintenance.

Overall score

AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with
85
MZK 40V 16" Electric Lawn Mower, 2-in-1 Brushless
77

Specifications

SpecAMERISUN 21-Inch 3IN1 Push Gas Lawn Mower withMZK 40V 16" Electric Lawn Mower, 2-in-1 Brushless
Engine TypeGasElectric
Power144cc40V
Cutting Options3-in-12-in-1
Weight68 lbs70 lbs
Price$238.49$259.99

Dimension comparison

AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower withMZK 40V 16" Electric Lawn Mower, 2-in-1 Brushless

Overview of the AMERISUN 21-Inch Gas Lawn Mower

The AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower is designed for efficiency and versatility. Priced at $238.49, it offers a robust 144cc 4-stroke OHV engine, making it an effective choice for small to medium-sized yards. This gas mower features a 21-inch rust-resistant steel deck, providing a wide cutting surface that can handle tough grass with ease. Its lightweight design, at just 68 lbs, enhances maneuverability, while the 3-in-1 functionality allows for mulching, bagging, and side discharge, catering to various lawn care needs.

Overview of the MZK 40V Electric Lawn Mower

The MZK 40V 16" Electric Lawn Mower is a cordless option that stands out for its convenience and eco-friendliness. Priced at $259.99, it features a high-performance brushless motor capable of reaching up to 3400 RPM for efficient cutting. The mower comes equipped with two 40V 4.0Ah batteries, providing up to 45 minutes of runtime, which can be extended by swapping batteries. With a 16-inch cutting width and a dual-functionality for mulching and bagging, the MZK offers both practicality and ease of use for homeowners with smaller lawns.

Performance Comparison

When it comes to performance, the AMERISUN mower boasts a more powerful engine with its 144cc gas motor, which is generally more effective in cutting through tough grass and uneven terrain. This mower can tackle small to medium yards efficiently due to its robust design. In contrast, the MZK electric mower's brushless motor is designed for consistent performance but limits its cutting power compared to gas options. While the MZK provides an adequate cutting experience, it may not perform as well on more challenging lawn conditions, particularly where thicker grass or uneven ground is present.

Cutting Width and Versatility

The AMERISUN mower features a 21-inch cutting width, making it suitable for larger areas and reducing the time spent mowing. Its versatility is enhanced by the 3-in-1 functionality, allowing users to choose between mulching, bagging, or side discharge, thus providing options based on personal preferences or lawn conditions. On the other hand, the MZK offers a smaller 16-inch cutting width, which is more suitable for smaller lawns. It supports a 2-in-1 function for mulching and rear bagging but lacks the side discharge feature, which may limit its versatility for some users.

Weight and Maneuverability

Weighing 68 lbs, the AMERISUN lawn mower is relatively light for a gas mower, which makes it easier to maneuver across various terrains. The design includes 7"/10" durable wheels that enhance stability and ease of movement. In contrast, the MZK, being cordless and electric, offers the advantage of not requiring fuel, making it easier to operate without the hassle of gas maintenance. However, it weighs slightly more due to the battery components, which may affect handling for some users.

Runtime and Convenience

One of the significant advantages of the MZK electric mower is its dual-battery setup, which provides up to 45 minutes of runtime. This feature allows users to swap batteries if needed, extending mowing sessions without interruption. While the AMERISUN does not have a runtime limitation associated with battery life, it requires refueling, which can be seen as a convenience issue for those preferring less maintenance. Thus, the MZK offers a more straightforward, hassle-free experience for those who prioritize convenience and efficiency over sheer cutting power.

Cost Efficiency

In terms of pricing, the AMERISUN is about 8% cheaper than the MZK, retailing at $238.49 compared to the MZK’s $259.99. Despite the lower price point, the AMERISUN also offers a more powerful engine and greater cutting width, potentially providing better value for homeowners with larger areas to maintain. The MZK, while slightly more expensive, may appeal to those who prefer an electric option, valuing the environmentally friendly aspect and ease of use that comes with cordless mowing.

Which should you buy?

Choosing between the AMERISUN 21-Inch Gas Lawn Mower and the MZK 40V Electric Lawn Mower ultimately depends on your specific needs and lawn care preferences. If you have a small to medium yard with varying conditions and you value cutting power and versatility, the AMERISUN provides a strong performance with its gas engine and broader cutting width. However, if you prefer a more convenient, eco-friendly option and have a smaller lawn, the MZK delivers adequate performance with the added benefit of cordless operation. Evaluate your lawn size, terrain, and personal preferences to make the best choice for your mowing needs.