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AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc vs LawnMaster GVB1316 Electric 16” 13 Amp Dethatcher

Updated July 2026 — AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc wins on engine size and weight, LawnMaster GVB1316 Electric 16” 13 Amp Dethatcher wins on rpm and collection size.

The AMERISUN offers robust mowing capabilities, while the LawnMaster excels in dethatching and scarifying at a lower price.

Why AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc is better

Price

AMERISUN is a more versatile option for mowing.

Performance

AMERISUN has a powerful gas engine.

Cutting Width

AMERISUN has a wider cutting deck.

Why LawnMaster GVB1316 Electric 16” 13 Amp Dethatcher is better

Price

LawnMaster is significantly cheaper.

Weight

LawnMaster is easier to handle.

Collection Size

LawnMaster has a larger collection bag.

Overall score

AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc
85
LawnMaster GVB1316 Electric 16” 13 Amp Dethatcher
75

Specifications

SpecAMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144ccLawnMaster GVB1316 Electric 16” 13 Amp Dethatcher
Engine TypeGasElectric
Power144cc13 Amp
Functionality3-in-12-in-1
Height Settings614
Collection Bag1.4 Bushel12 Gallon

Dimension comparison

AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144ccLawnMaster GVB1316 Electric 16” 13 Amp Dethatcher

Price Comparison

The AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower is priced at $238.49, while the LawnMaster GVB1316 Electric 16” 13 Amp Dethatcher and Scarifier is considerably cheaper at $124.99, making it about 47% less expensive. This significant price difference may influence buyers on a budget looking for effective lawn care solutions. The AMERISUN offers a more robust gas-powered option for those with larger lawns, but the LawnMaster is an economical choice for homeowners focused on dethatching and scarifying their lawns.

Engine and Power

The AMERISUN lawn mower is equipped with a 144cc 4-cycle OHV engine, delivering consistent cutting performance ideal for small to medium-sized lawns. In contrast, the LawnMaster features a powerful 13 Amp motor that reaches up to 3700 RPM, making it suitable for dethatching and scarifying tasks. While the AMERISUN is designed for mowing, the LawnMaster excels in improving lawn health by removing thatch and allowing better nutrient absorption. Depending on your lawn care needs, the choice between a gas engine and an electric motor could significantly affect performance.

Cutting and Dethatching Features

The AMERISUN lawn mower is a versatile 3-in-1 machine that allows for mulching, bagging, and side discharging, which is advantageous for routine lawn maintenance. It has a durable 21-inch cutting deck that facilitates quicker mowing. On the other hand, the LawnMaster is specifically designed for dethatching and scarifying, featuring a 16-inch wide path. Its 2-in-1 function is effective for removing thatch and improving soil aeration. If your primary goal is mowing, the AMERISUN is ideal, but if you're looking to enhance the health of your lawn, the LawnMaster offers specialized functionalities.

Height Adjustment Capabilities

The AMERISUN offers 6-position height adjustment ranging from 1.5 to 3.9 inches, allowing users to customize their cut based on grass type and seasonal conditions. Meanwhile, the LawnMaster provides a more extensive 14-position height adjustment, ranging from -0.35 to 0.35 inches for its dethatcher and scarifier attachments, which allows for greater versatility in tackling different terrains. This difference can be crucial for users who need to adapt their equipment to varying lawn conditions throughout the year.

Ease of Use and Maneuverability

Both the AMERISUN lawn mower and the LawnMaster dethatcher/scarifier are designed for user-friendliness, but they cater to different tasks. The AMERISUN weighs 68 lbs, making it relatively lightweight and easy to maneuver around obstacles, aided by its durable wheels. In contrast, the LawnMaster is designed to be sturdy yet easy to handle, with an adjustable height for user comfort while operating. If you prioritize ease of movement during mowing, the AMERISUN could be preferable, while the LawnMaster excels in comfort for dethatching operations.

Collection Capabilities

The AMERISUN lawn mower comes with a large-capacity 1.4-bushel grass catcher, which minimizes the need for frequent emptying during mowing sessions. This is particularly useful when dealing with larger grass clippings. On the other hand, the LawnMaster features a 12-gallon collection bag that efficiently gathers lawn debris and thatch, reducing the need for manual raking. While both products offer collection features, the AMERISUN is better suited for regular mowing, whereas the LawnMaster is focused on maintaining a healthy lawn by removing unwanted thatch.

Brand Reputation and Sales Rank

The AMERISUN has a sales rank of 8653, while the LawnMaster boasts a slightly higher sales rank of 9161 in their respective categories. This indicates a solid level of popularity for both products, suggesting that they are well-regarded in the market. When choosing between the two, it may be worth considering brand reputation and customer feedback, as both products have established themselves as viable options for lawn care.

Which should you buy?

Ultimately, the choice between the AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower and the LawnMaster GVB1316 Electric 16” 13 Amp Dethatcher and Scarifier boils down to specific lawn care needs. If you require a reliable mower for regular maintenance on small to medium-sized lawns, the AMERISUN, despite its higher price, offers robust performance and versatility. However, for those focused on lawn health and looking for an economical option for dethatching and scarifying, the LawnMaster presents significant advantages at a much lower price point. Assess your lawn's requirements to make an informed decision.