AMERISUN 21" Gas Lawn Mower vs AMERISUN Gas Lawn Mower (2026): Key Differences
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You are comparing the amerisun 21 gas lawn mower vs gas lawn mower from AMERISUN. Both models share a 144cc 4-cycle OHV engine, a 21-inch steel deck, and push drive. They both offer six cutting height positions. The main difference lies in their mowing functions. One model provides a 3-in-1 capability, while the other offers a 2-in-1 setup. This affects how you handle grass clippings and debris in your yard.
Key differences
| Aspect | AMERISUN 21-Inch 144cc Push Gas Mower | AMERISUN 21-Inch 144cc Gas Push Mower |
|---|---|---|
| Mowing Function | 3-in-1 | 2-in-1 mulching and side discharge |
| Weight | 64 pounds | 63 pounds |
| Model Number | AV8621P1 | AV8621C1 |
| Engine Cooling | Forced air-cooling | not listed |
Which one should you choose?
Choose AMERISUN 21-Inch 144cc Push Gas Mower if
- You want the versatility of three mowing functions
- You prefer a mower with forced air-cooling for engine longevity
- You need a slightly heavier unit for stability
Choose AMERISUN 21-Inch 144cc Gas Push Mower if
- You prioritize the lightest possible push mower at 63 lbs
- You only need mulching and side discharge options
- You want a simpler 2-in-1 configuration for basic tasks
Verdict: Choose the first model if you value the additional third mowing function and specified cooling system. Pick the second model if you want the absolute lightest weight and only require mulching and side discharge. Both handle similar yard sizes with identical engines and decks.
Key Specs Comparison
Mowing Function
The AMERISUN 21-Inch 144cc Push Gas Mower offers a 3-in-1 mowing function. This means it can mulch, bag, or side discharge grass clippings. The AMERISUN 21-Inch 144cc Gas Push Mower provides a 2-in-1 function. It supports mulching and side discharge only. If you need to collect clippings in a bag for a tidy yard, the first model is the better choice. The second model is sufficient if you prefer to leave clippings on the lawn or discharge them to the side. Both systems help manage grass waste effectively, but the three-option setup gives you more flexibility for different lawn conditions.
Weight
Weight affects how easily you can push and maneuver the mower. The AMERISUN 21-Inch 144cc Push Gas Mower weighs 64 pounds. The AMERISUN 21-Inch 144cc Gas Push Mower weighs 63 pounds. The second model is slightly lighter by one pound. This minor difference may make it marginally easier to lift or maneuver around obstacles. However, both machines are substantial push mowers. You will need to exert effort to push them across the lawn. The weight difference is negligible in practice, so both perform similarly regarding physical handling.
Deck Material
Both mowers feature a 21-inch steel deck. Steel is known for its durability and ability to withstand impacts from rocks or debris. The reinforced steel deck on the first model ensures a clean and even cut. The heavy-duty steel deck on the second model is built to handle thick grass. Since both use the same material and cutting width, they offer similar longevity and cutting performance. You do not need to worry about corrosion or bending with either option. The steel construction provides a solid foundation for the engine and blade assembly in both units.
Engine Power
Both models are powered by a 144cc 4-cycle OHV engine. This engine type provides reliable starting and consistent power for routine lawn maintenance. The auto choke system on the first model ensures easy starts. The second model uses an easy pull-start system. Both engines include forced air-cooling to maintain smooth operation. You get identical cutting power from both machines. The 144cc displacement is adequate for small to medium-sized yards. You will not notice a difference in performance between the two engines during normal use.
Cutting Height
Both mowers allow you to adjust the cutting height from 1.5 inches to 3.9 inches. They both offer six distinct positions for this adjustment. The first model uses a single-lever mechanism to change the height. The second model also uses a convenient lever for quick adjustments. This feature lets you adapt to different grass varieties and lawn conditions. You can set the height for a clean, even finish. Since the range and number of positions are identical, you have the same control over cut quality in both models.
Which AMERISUN mower suits your yard
You want to bag grass clippings
This model includes a 3-in-1 mowing function. You can mulch, bag, or side discharge. The second mower only offers mulching and side discharge. If you need a bagger to keep your lawn tidy, this AMERISUN 21-Inch 144cc Push Gas Mower is the right choice. It handles clippings in three ways.
You need lighter weight for storage
This mower weighs 63 lbs. The other model weighs 64 lbs. While the difference is small, the lighter weight makes it easier to maneuver around obstacles. It also folds for compact storage. If you prefer a slightly lighter machine for your shed, this AMERISUN 21-Inch 144cc Gas Push Mower is ideal.
You prefer a standard push mower
Both are push mowers with 144cc engines. This model focuses on mulching and side discharge. It has durable 7-inch front wheels and 10-inch rear wheels. The single-lever height adjustment works from 1.5 to 3.9 inches. If you do not need a bagger, this straightforward 2-in-1 mower handles routine lawn care well.
The products compared
AMERISUN 21-Inch 144cc Push Gas Mower
Best for: Manual mowing on flat, small to medium lawns
- Power Source
- Gas, 144cc 4-cycle OHV
- Cutting Width
- 21 in
- Drive Type
- Push
- Deck Material
- Steel
- Cutting Height
- 1.5-3.9 in, 6 positions
- Mowing Function
- 3-in-1
View on Amazon: AMERISUN 21-Inch 144cc Push Gas Mower Affiliate link
This AMERISUN gas mower features a 144cc 4-cycle OHV engine and a 21-inch steel deck. It operates as a push model with 3-in-1 mowing functions. The unit includes a single-lever height adjustment with six positions ranging from 1.5 to 3.9 inches. It weighs 64 pounds and arrives mostly assembled, requiring only handle unfolding. This setup suits users who prefer manual operation and straightforward mechanical controls.
Pros
- 144cc 4-cycle OHV engine with auto choke for easy starting
- 21-inch reinforced steel deck for durable cutting performance
- Six-position single-lever height adjustment from 1.5 to 3.9 inches
- Arrives mostly assembled with foldable handle for storage
Cons
- Push-only drive requires manual effort to move the mower
- 64-pound weight may be heavy for some users to maneuver
- Lacks self-propulsion or electric start features found in other models
Good fit if
- You prefer a lightweight, manual push mower without complex electronics
- You want a mower that is mostly assembled for quick setup
- You need a durable steel deck for standard lawn maintenance
Skip if
- You need self-propelled power to handle slopes or large yards
- You prefer electric start systems over pull-start mechanisms
- You want a lighter mower for easy storage and transport
Verdict: AMERISUN 21" Gas Push Mower is a sturdy, manual option for small to medium lawns where you do not need self-propulsion. It fits users who value simple mechanical adjustments and a mostly assembled unit.
AMERISUN 21-Inch 144cc Gas Push Mower
Best for: Small, flat lawns needing manual push control
- Power Source
- Gas
- Cutting Width
- 21 in
- Drive Type
- Push
- Deck Material
- Steel
- Cutting Height
- 1.5–3.9 in, 6 positions
- Mowing Function
- 2-in-1
View on Amazon: AMERISUN 21-Inch 144cc Gas Push Mower Affiliate link
This AMERISUN model features a 144cc 4-cycle OHV engine and a 21-inch steel deck. It operates as a push mower with 6-position height adjustment from 1.5 to 3.9 inches. The unit offers 2-in-1 mulching and side discharge capabilities. Weighing 63 lbs, it includes 7-inch front and 10-inch rear wheels. This mower suits small to medium yards where manual operation is acceptable.
Pros
- 144cc 4-cycle OHV engine for consistent power
- 21-inch steel cutting deck for durability
- 6-position cutting height adjustment (1.5-3.9 inches)
- 2-in-1 mulching and side discharge modes
- Lightweight 63 lb design for easy maneuverability
Cons
- Push drive requires manual effort
- Limited to 2-in-1 mulching and side discharge
- No self-propulsion for hilly terrain
Good fit if
- You have a small to medium-sized flat lawn
- You prefer manual control over self-propelled models
- You need a lightweight mower for easy storage
Skip if
- You require self-propelled drive for hills
- You need 3-in-1 bagging capability
- You want electric or battery-powered operation
Verdict: AMERISUN 21" Gas Push Mower fits users with small, flat yards who want a lightweight, durable push mower. It lacks self-propulsion but offers solid manual control and mulching options.
Specifications side by side
| Spec | AMERISUN 21-Inch 144cc Push Gas Mower | AMERISUN 21-Inch 144cc Gas Push Mower |
|---|---|---|
| Power Source | Gas, 144cc 4-cycle OHV | Gas |
| Cutting Width | 21 in | 21 in |
| Drive Type | Push | Push |
| Deck Material | Steel | Steel |
| Cutting Height | 1.5-3.9 in, 6 positions | 1.5–3.9 in, 6 positions |
| Mowing Function | 3-in-1 | 2-in-1 |
| Application | Lawn | Yard, Lawn |
| Size | not stated | 21 Inch |
| Dimensions | 60.2 × 26.7 × 38.4 inches | 32.9 × 16.5 × 22.6 inches |
| Weight | 64 pounds | not stated |
| Color | Black | Black |
| Model | AV8621P1 | AV8621C1 |
Frequently asked questions
Which AMERISUN mower is better for bagging clippings?
The AMERISUN 21-Inch 144cc Push Gas Mower is better for bagging. It features a 3-in-1 mowing function that supports mulching, bagging, and side discharge. The other model only offers a 2-in-1 function with mulching and side discharge. If you need to collect grass clippings in a bag, you must choose the first option.
Do both models have self-propelled drive?
No, neither model has self-propulsion. Both the AMERISUN 21-Inch 144cc Push Gas Mower and the other AMERISUN 21-Inch Gas Push Mower use a push drive type. You must physically push both mowers across your lawn. They are designed for manual mowing on flat, small to medium lawns.
What are the dimensions of the AMERISUN 21-Inch 144cc Push Gas Mower?
The AMERISUN 21-Inch 144cc Push Gas Mower measures 26.7 inches in width, 38.4 inches in height, and 60.2 inches in length. It weighs 64 pounds. These dimensions help you determine if it fits in your storage space. The handle folds for compact storage.
Is the second AMERISUN mower lighter than the first?
The second model, AMERISUN 21-Inch 144cc Gas Push Mower, is likely lighter. The first model weighs 64 pounds. The second model's specs list a length of 32.9 inches and a height of 22.6 inches, suggesting a more compact design. However, its exact weight is not provided in the data.
Can I use the second mower for side discharge?
Yes, the second mower supports side discharge. It has a 2-in-1 mowing function that includes mulching and side discharge. This allows you to cut grass and let clippings fall to the side. You cannot bag clippings with this model, unlike the first mower which offers a 3-in-1 function.
Do both mowers have the same engine size?
Yes, both mowers share the same engine specifications. They both use a 144cc 4-cycle OHV engine. This power source provides consistent performance for small to medium lawns. The engine type ensures reliable starting and operation for both the push and gas-powered models.
Which mower is better for a small flat lawn?
Both mowers are suitable for small, flat lawns. The first model is sturdy and mostly assembled. The second model is described as lightweight and durable. If you prefer manual control without self-propulsion, either works. The first model offers more versatility with its 3-in-1 function if you plan to bag clippings.
What cutting height options do these mowers offer?
Both mowers offer six cutting height positions. This allows you to adjust the blade height to suit your grass type and lawn conditions. The adjustable heights help maintain a healthy lawn. You can easily switch between positions to achieve your desired cut length.

