AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc vs MZK 20V 13" Electric Lawn Mower, Brushless
Updated July 2026 — AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc wins on engine cc and weight, MZK 20V 13" Electric Lawn Mower, Brushless wins on grass catcher and battery.
The AMERISUN mower offers superior power and versatility, while the MZK provides a lightweight and cost-effective option for smaller lawns.
Why AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc is better
Power
AMERISUN has a more powerful engine.
Cutting Width
AMERISUN features a wider 21-inch cutting deck.
Height Adjustment
AMERISUN offers more height adjustment options.
Why MZK 20V 13" Electric Lawn Mower, Brushless is better
Price
MZK is significantly cheaper.
Weight
MZK is much lighter and easier to maneuver.
Noise
MZK operates more quietly due to electric motor.
Overall score
Specifications
| Spec | AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc | MZK 20V 13" Electric Lawn Mower, Brushless |
|---|---|---|
| Power Source | Gas | Electric |
| Engine Type | 4-Cycle OHV | Brushless |
| Height Adjustments | 6 Positions | 4 Positions |
| Price | $238.49 | $149.99 |
| Sales Rank | 8653 | 3019 |
Dimension comparison
Overview of the AMERISUN 21-Inch Gas Push Lawn Mower
The AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower is a robust option for those who manage small to medium-sized lawns. Priced at $238.49, this gas-powered mower boasts a powerful 144cc 4-cycle OHV engine that provides reliable cutting performance. With a sales rank of 8,653, it has established itself as a dependable choice among consumers. This model offers a versatile 3-in-1 functionality, allowing users to mulch, bag, or side discharge clippings, making it a multifunctional tool for lawn care enthusiasts.
Overview of the MZK 20V Electric Lawn Mower
The MZK 20V 13" Electric Lawn Mower presents a lower-cost alternative at $149.99, making it about 37% cheaper than the AMERISUN model. This electric mower features a brushless motor that enhances efficiency and performance, ideal for users wanting a quieter and more environmentally friendly option. With a sales rank of 3,019, it is a popular choice among consumers looking for convenience and ease of use, particularly in residential settings.
Engine Performance and Power Source
The AMERISUN mower is equipped with a 144cc 4-cycle OHV engine, which delivers consistent power for efficient mowing. This engine type is known for its reliability and ease of maintenance, providing a robust solution for tackling various grass conditions. Conversely, the MZK mower utilizes a brushless motor powered by two 4.0Ah batteries, allowing for a quieter operation without the hassle of gas. While the AMERISUN's engine offers greater power for larger or thicker grass, the MZK’s electric setup allows for a more straightforward and low-maintenance mowing experience.
Cutting Width and Capacity
When it comes to cutting width, the AMERISUN features a 21-inch steel cutting deck, providing a wider coverage that reduces mowing time significantly. This larger deck is particularly beneficial for users with larger lawns, as it allows for fewer passes. In contrast, the MZK mower has a narrower 13-inch cutting width, which may require more time to complete the same area. However, the MZK does include an 8-gallon grass catcher, which helps in managing clippings effectively, albeit with a smaller capacity compared to the AMERISUN's large 1.4-bushel catcher.
Height Adjustment Features
The AMERISUN mower offers 6-position height adjustment settings ranging from 1.5 to 3.9 inches, providing flexibility to tackle different grass types and seasonal growth. This feature is particularly useful for ensuring an even cut across varying terrain. On the other hand, the MZK has a simpler 4-position height adjustment that ranges from 1.2 to 1.5 inches. While the MZK’s adjustments are adequate for basic lawn care, they may not offer the same versatility as the AMERISUN, especially for users managing diverse grass conditions.
Weight and Maneuverability
Weighing in at 68 lbs, the AMERISUN mower is relatively lightweight for a gas mower, making it easier to maneuver around obstacles. Its durable wheels enhance stability, allowing for smooth navigation across various terrains. In contrast, the MZK is significantly lighter at just 24.3 lbs, making it exceptionally easy to push and transport. This lightweight design is particularly advantageous for users who may have difficulty with heavier equipment. Thus, while the AMERISUN is robust for larger areas, the MZK shines in ease of handling.
Safety and Ease of Use
The AMERISUN mower features an easy pull-start system for quick ignition, allowing users to get started with minimal delay. Its design focuses on providing a user-friendly experience, although gas mowers generally require more maintenance than electric models. The MZK mower, on the other hand, is equipped with an intuitive two-step activation process, ensuring safety during startup. This feature reduces the risk of accidental engagement, making it an excellent choice for families or less experienced users.
Which should you buy?
Deciding between the AMERISUN 21-Inch Gas Push Lawn Mower and the MZK 20V Electric Lawn Mower ultimately depends on your specific lawn care needs. If you require a powerful mower for larger or thicker grass, the AMERISUN, priced at $238.49, offers superior performance and versatility. However, if you're looking for a quieter, more cost-effective option for smaller lawns, the MZK, at $149.99, provides excellent value with its lightweight design and ease of use. Each mower has distinct advantages, so your choice should align with your lawn size, maintenance preferences, and budget.

