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The PowerSmart 21-Inch 170cc Self-Propelled Gas Mower offers rear-wheel drive for slope traction and a durable steel deck. This combination serves homeowners who prioritize control on uneven terrain over maximum cutting width. If you are searching for powersmart 21 inch 170cc self propelled gas alternatives, you may need different specifications for your specific lawn size or budget. Some users prefer a wider 22-inch path or a lighter frame for easier storage. Others might want a higher engine displacement for thick grass or a different brand for warranty support.
We selected these 6 picks because their core specs overlap with the original model. Each alternative shares key features like a 21-inch or 22-inch cutting width, gas power, and self-propelled drive systems. You will find options with steel decks, 3-in-1 mulching capabilities, and similar height adjustments. This list helps you compare practical differences in weight, drive type, and engine torque. You can choose the model that best fits your yard's layout and your personal mowing preferences.
How these picks differ
SENIX 21-Inch 170cc Self-Propelled Gas Mower
The SENIX 21-Inch 170cc model shares the same engine displacement and self-propelled drive type as the original. It offers identical 3-in-1 mowing functions and a durable steel deck. The key difference is its weight. This SENIX unit weighs 61.7 pounds, which is 2.7 pounds heavier than the PowerSmart. Its dimensions are also slightly wider and longer. You gain a robust build for flat yards. You give up the lighter maneuverability of the PowerSmart. This pick suits users who value durability over easy transport. It is a practical choice for those who do not require high-torque rear-wheel drive on steep slopes.
SENIX 21-Inch Self-Propelled Gas Mower
This SENIX model matches the original in cutting width and engine power. It also features a steel deck and 3-in-1 versatility. The weight is identical to the other SENIX, at 61.7 pounds. This makes it heavier than the PowerSmart by 2.7 pounds. The physical dimensions are the same as the other SENIX, measuring 61 inches in length. You get a sturdy machine for small to medium yards. You do not get the lighter weight of the PowerSmart. This model is ideal if you prioritize deck durability. It fits users who do not need the extra traction of rear-wheel drive. It is a solid alternative for flat terrain maintenance.
PowerSmart 21-Inch Rear-Wheel Drive Gas Mower
This PowerSmart variant retains the 21-inch cutting width and 170cc engine. It also offers rear-wheel drive for slope traction. However, the listed dimensions are significantly smaller than the original. The width is 16.5 inches, height is 22.6 inches, and length is 32.9 inches. This suggests a folded or compact state. You gain a potentially easier storage footprint. You give up the full operational dimensions of the original. This pick fits users who prioritize slope traction and rear-wheel stability. It is a solid choice for medium yards where engine power is less critical. It suits those who need maneuverability on slopes.
AMERISUN 21" Self-Propelled Gas Mower
The AMERISUN model matches the original with a 21-inch cutting width and 170cc engine. It shares the 3-in-1 mowing functions and steel deck construction. The listed dimensions are 16.5 inches wide, 22.6 inches high, and 32.9 inches long. These measurements are much smaller than the original's operational size. You get a durable steel deck and versatile cutting options. You do not get the full-size operational footprint of the PowerSmart. This pick suits users who prioritize a durable steel deck. It is a solid choice for those who do not need a wider cutting path. It fits users who value consistent mulching and bagging performance.
BILT HARD 21-Inch 201cc Self-Propelled Gas Mower
The BILT HARD model keeps the 21-inch cutting width and self-propelled drive. It offers 3-in-1 mowing functions. The main difference is the engine. This model uses a 201cc engine, providing higher torque than the original's 170cc. It also weighs 89.2 pounds, which is 30.2 pounds heavier than the PowerSmart. You gain significant engine power for thick grass. You give up much of the lightweight maneuverability. This pick fits users who prioritize engine torque. It is a solid choice for those who do not mind the extra weight. It suits users needing high torque and durable steel build for demanding mowing tasks.
PowerSmart 22-Inch Gas Self-Propelled Lawn Mower
This PowerSmart model increases the cutting width to 22 inches. It retains the 170cc engine and rear-wheel drive. The weight is 75 pounds, which is 16 pounds heavier than the original. The dimensions are 22.8 inches wide, 38.4 inches high, and 59.8 inches long. You gain a wider cutting path for larger lawns. You give up the lighter weight and narrower profile of the original. This pick suits users who prioritize a wider cutting path. It is a solid choice for those who value rear-wheel traction. It fits users who do not need lighter weight or higher engine displacement.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | PowerSmart 21-Inch 170cc Self-Propelled Gas Mower Best overall | slopes and uneven terrain | |
| 2 | SENIX 21-Inch 170cc Self-Propelled Gas Mower Also great | flat yards and durable steel deck use | |
| 3 | SENIX 21-Inch Self-Propelled Gas Mower Best budget | small yards needing durable steel deck | |
| 4 | PowerSmart 21-Inch Rear-Wheel Drive Gas Mower Best premium | Sloped medium yards needing rear-wheel traction | |
| 5 | AMERISUN 21" Self-Propelled Gas Mower Also great | Users needing a 3-in-1 mowing system with a steel deck | |
| 6 | BILT HARD 21-Inch 201cc Self-Propelled Gas Mower Also great | Users needing high torque and 8 height settings | |
| 7 | PowerSmart 22-Inch Gas Self-Propelled Lawn Mower Best 22-inch | larger lawns needing a wider cutting path |
PowerSmart 21-Inch 170cc Self-Propelled Gas Mower
Best for: slopes and uneven terrain
- Cutting Width
- 21 in
- Drive Type
- Self-propelled (rear-wheel drive)
- Mowing Functions
- 3-in-1 (mulch, side discharge, bag)
- Motor Type
- 4-stroke OHV, 170 cc
- Height Adjustments
- 6 positions (1.5" – 3.9")
- Power Type
- Gas
This PowerSmart mower features a 170cc 4-stroke OHV engine and rear-wheel drive for traction on slopes. It offers a 21-inch steel deck with three mowing functions: mulching, side discharge, and rear bagging. The cutting height adjusts from 1.5 to 3.9 inches across six positions. Weighing 59 pounds, it folds for storage. It suits users needing reliable self-propelled performance on uneven terrain.
- Rear-wheel drive provides strong traction on slopes and uneven terrain.
- 170cc OHV 4-stroke engine with auto choke for reliable starts.
- Steel deck construction built for durable, long-lasting performance.
- Six-position height adjustment ranges from 1.5 to 3.9 inches.
- 170cc engine displacement is lower than the 201cc engine in the BILT HARD alternative.
- 21-inch cutting width is narrower than the 22-inch deck on the PowerSmart EasyDrive Pro.
- 59-pound weight is heavier than lighter alternatives in this category.
- You need rear-wheel drive for better traction on slopes.
- You want a durable steel deck for long-term use.
- You require three mowing functions including rear bagging.
- You prefer a wider 22-inch cutting deck for faster coverage.
- You want a more powerful 201cc engine for heavy-duty tasks.
- You need a lighter mower under 55 pounds for easy handling.
Verdict: PowerSmart 21-Inch 170cc Self-Propelled is a solid choice for homeowners who prioritize traction and durability on uneven lawns. It fits users who value rear-wheel drive and a steel deck over maximum cutting width or engine displacement.
SENIX 21-Inch 170cc Self-Propelled Gas Mower
Best for: flat yards and durable steel deck use
- Cutting Width
- 21 in
- Drive Type
- Self-propelled, FWD
- Mowing Functions
- 3-in-1 (mulch, bag, side discharge)
- Motor Type
- 170 cc 4-cycle OHV gas
- Height Adjustments
- 6 positions, 1.25-3.75 in
- Engine Displacement
- 170cc
The SENIX 21-Inch mower features a 170cc OHV engine delivering 3.8 HP and 6.5 ft-lb of torque. It includes a 3-in-1 steel deck for mulching, bagging, or side discharge. Six height positions range from 1.25 to 3.75 inches. The front-wheel drive system helps you guide the mower through flat yards. It weighs 61.7 pounds and comes with a 1.7-bushel bagger.
- 170cc 4-cycle OHV engine provides reliable power
- 6-position height adjustment from 1.25 to 3.75 inches
- 3-in-1 steel deck supports mulching, bagging, and side discharge
- Includes a 1.7-bushel collection bagger
- Front-wheel drive offers less traction on slopes than rear-wheel drive models
- 170cc engine displacement is lower than 201cc competitors on this list
- 21-inch cutting width is narrower than the 22-inch options available
- You need a mower for flat, relatively small yards up to 1/3 acre
- You want a steel deck for durability and easy maintenance
- You prefer front-wheel drive for easier pivoting around obstacles
- You have steep slopes requiring superior rear-wheel traction
- You prefer a wider 22-inch cutting path for faster coverage
- You want an engine with higher displacement than 170cc
Verdict: SENIX 21-Inch 170cc Self-Propelled Mower fits users with flat yards who value a durable steel deck and versatile 3-in-1 cutting options. It is a practical choice for those who do not require high-torque rear-wheel drive.
SENIX 21-Inch Self-Propelled Gas Mower
Best for: small yards needing durable steel deck
- Cutting Width
- 21 in
- Drive Type
- Self-propelled, front-wheel drive
- Mowing Functions
- 3-in-1
- Motor Type
- 170cc 4-cycle OHV
- Height Adjustments
- 6 positions, 1.25 to 3.75 inches
- Power Type
- Gas
The SENIX 21-Inch mower features a 170cc 4-cycle OHV engine delivering 3.8 HP. It offers a 21-inch cutting width and self-propelled front-wheel drive. You get six height positions from 1.25 to 3.75 inches. The 3-in-1 deck handles mulching, side discharge, and rear bagging. This model suits users with yards up to 1/3 acre who need a durable steel deck and easy maneuverability on uneven terrain.
- 170cc 4-cycle OHV engine with 3.8 HP output
- 21-inch high-strength steel cutting deck
- 6-position height adjustment from 1.25 to 3.75 inches
- 3-in-1 mowing functions including mulching and bagging
- Front-wheel drive for controlled maneuverability
- Front-wheel drive offers less traction on steep slopes than rear-wheel drive models
- 170cc engine displacement is lower than the 201cc option available in this guide
- Weighs 61.7 pounds, which is heavier than some lighter alternatives
- You need a durable steel deck for rough terrain
- You want six height settings for precise cutting control
- You are mowing lawns up to 1/3 acre
- You require rear-wheel drive for steep hills
- You need more than 170cc of engine power
- You prefer a lighter mower for easy storage
Verdict: SENIX 21-Inch Self-Propelled Gas Mower is a solid choice for homeowners with small to medium yards who prioritize deck durability and multiple height settings. It fits users who do not need the extra traction of rear-wheel drive or the higher torque of a 201cc engine.
PowerSmart 21-Inch Rear-Wheel Drive Gas Mower
Best for: Sloped medium yards needing rear-wheel traction
- Cutting Width
- 21 in
- Drive Type
- Rear-wheel drive, self-propelled
- Mowing Functions
- 3-in-1 (bag, mulch, rear discharge)
- Motor Type
- 170cc OHV
- Height Adjustments
- 6 positions, 1.5" to 3.9"
- Power Type
- Gas
This PowerSmart mower features a 170cc OHV engine and a 21-inch steel deck. It uses rear-wheel drive for better traction on slopes. You get three mowing modes: bagging, mulching, and rear discharge. The height adjusts in six positions from 1.5 to 3.9 inches. Large 10-inch rear wheels help with uneven terrain. It suits medium to large yards where slope handling matters.
- 170cc OHV engine for consistent performance
- Rear-wheel drive improves traction on slopes
- 10-inch rear wheels aid maneuverability
- 3-in-1 bag, mulch, and rear discharge options
- 6-position height adjustment from 1.5 to 3.9 inches
- 170cc engine is less powerful than the 201cc BILT HARD option
- 1.4-bushel grass bag capacity is smaller than typical larger models
- 21-inch cutting width is narrower than the 22-inch PowerSmart EasyDrive Pro
- You need reliable traction for mowing on slopes
- You want a rear-wheel drive system for better control
- You prefer a 21-inch cutting width for medium yards
- You require a wider 22-inch or larger cutting path
- You need more than 170cc of engine displacement
- You prefer a side-discharge mower over rear discharge
Verdict: PowerSmart 21-Inch 170cc Rear-Drive Mower fits users who prioritize slope traction and rear-wheel drive stability. It is a solid choice for medium yards where engine power is less critical than maneuverability.
AMERISUN 21" Self-Propelled Gas Mower
Best for: Users needing a 3-in-1 mowing system with a steel deck
- Cutting Width
- 21 in
- Drive Type
- Self-propelled
- Mowing Functions
- 3-in-1 (mulch, bag, side discharge)
- Motor Type
- 170cc 4-cycle OHV
- Height Adjustments
- 6 positions, 1.5-3.9 in
- Power Type
- Gas
This AMERISUN mower features a 170cc 4-cycle OHV engine and a 21-inch cutting width. It offers self-propelled drive and 6-position height adjustments ranging from 1.5 to 3.9 inches. The 3-in-1 design supports mulching, side discharge, and bagging with a 1.4-bushel rear catcher. It suits users seeking a durable steel deck and compact foldable handle for storage.
- 170cc 4-cycle OHV engine with auto choke
- 21-inch steel cutting deck
- 6-position height adjustment from 1.5 to 3.9 inches
- 1.4-bushel rear grass catcher
- Foldable handle for compact storage
- 170cc engine displacement is lower than the 201cc option on this list
- 21-inch cutting width is narrower than the 22-inch option on this list
- You want a self-propelled mower with a steel deck
- You need a 3-in-1 mulching, bagging, and side-discharge system
- You prefer a compact foldable handle for storage
- You require a cutting width wider than 21 inches
- You need an engine displacement greater than 170cc
- You prefer a 22-inch cutting deck over a 21-inch one
Verdict: AMERISUN 21-Inch 170cc Self-Propelled Gas Mower fits users who prioritize a durable steel deck and a 3-in-1 mowing system. It is a solid choice for those who do not need a wider cutting path or higher engine displacement.
BILT HARD 21-Inch 201cc Self-Propelled Gas Mower
Best for: Users needing high torque and 8 height settings
- Cutting Width
- 21"
- Drive Type
- Self-Propelled
- Mowing Functions
- 3-in-1
- Motor Type
- 201cc 4-cycle OHV
- Height Adjustments
- 8-position (1.2" to 3.75")
- Power Type
- Gas
This BILT HARD mower features a 201cc 4-cycle OHV engine and a 21-inch steel deck. It offers 3-in-1 mowing versatility with mulching, bagging, and side discharge options. You get 8-position cutting height adjustments ranging from 1.2 to 3.75 inches. The self-propelled drive provides a fixed walking speed. Weighing 89.2 pounds, it suits users needing reliable power and multiple grass management modes.
- 201cc 4-cycle OHV engine delivers 9.0 ft·lb of torque.
- 8-position cutting height adjustment lever synchronizes all four wheels.
- 3-in-1 versatility includes mulching, rear bagging, and side discharge.
- Durable steel deck supports efficient mowing across the 21-inch path.
- Self-propelled drive offers only a fixed walking speed without variable control.
- 89.2-pound weight is heavier than many competitors in this category.
- You want 8 cutting height settings for precise lawn control.
- You need a 201cc engine for consistent power output.
- You prefer a steel deck for durability and mulching performance.
- You require variable speed control for the self-propelled drive.
- You prefer a lighter mower under 80 pounds for easy handling.
- You only need rear bagging and do not want side discharge options.
Verdict: BILT HARD 21" 201cc Self-Propelled Gas Mower fits users who prioritize engine torque and versatile grass management over variable speed control. It is a solid choice for those who do not mind the extra weight for a durable steel build.
PowerSmart 22-Inch Gas Self-Propelled Lawn Mower
Best for: larger lawns needing a wider cutting path
- Cutting Width
- 22 in.
- Drive Type
- Self-propelled
- Mowing Functions
- 3-in-1 (mulch, bag, discharge)
- Motor Type
- 170cc 4-stroke OHV
- Height Adjustments
- 6 positions (1.5" to 3.9")
- Power Type
- Gas
This PowerSmart mower features a 22-inch steel cutting deck, the widest on this list, helping you cover more ground per pass. It uses a 170cc 4-stroke OHV engine with rear-wheel drive for better traction on slopes. The 60L grass bag reduces emptying frequency. You get six height settings from 1.5 to 3.9 inches. It weighs 75 pounds and offers three-in-one mulching, bagging, and discharge options.
- 22-inch cutting width for faster coverage
- 60L grass bag holds more clippings
- Rear-wheel drive aids traction on slopes
- 6-position height adjustment from 1.5 to 3.9 inches
- Weighs 75 pounds, which is heavier than the 21-inch competitors
- Engine displacement is 170cc, lower than the 201cc BILT HARD option
- You want the widest cutting path available in this guide
- You need strong traction for mowing on uneven or sloped terrain
- You prefer a larger grass bag to reduce emptying stops
- You prefer a lighter mower for easier maneuverability
- You want the highest engine power output on the list
- You are limited to a 21-inch cutting deck width
Verdict: PowerSmart 22-Inch 170cc Self-Propelled Gas Mower suits users who prioritize a wider cutting path and rear-wheel traction over lighter weight or higher engine displacement.
Specifications side by side
| Spec | PowerSmart 21-Inch 170cc Self-Propelled Gas Mower | SENIX 21-Inch 170cc Self-Propelled Gas Mower | SENIX 21-Inch Self-Propelled Gas Mower | PowerSmart 21-Inch Rear-Wheel Drive Gas Mower | AMERISUN 21" Self-Propelled Gas Mower | BILT HARD 21-Inch 201cc Self-Propelled Gas Mower | PowerSmart 22-Inch Gas Self-Propelled Lawn Mower |
|---|---|---|---|---|---|---|---|
| Cutting Width | 21 in | 21 in | 21 in | 21 in | 21 in | 21" | 22 in. |
| Drive Type | Self-propelled (rear-wheel drive) | Self-propelled, FWD | Self-propelled, front-wheel drive | Rear-wheel drive, self-propelled | Self-propelled | Self-Propelled | Self-propelled |
| Mowing Functions | 3-in-1 (mulch, side discharge, bag) | 3-in-1 (mulch, bag, side discharge) | 3-in-1 | 3-in-1 (bag, mulch, rear discharge) | 3-in-1 (mulch, bag, side discharge) | 3-in-1 | 3-in-1 (mulch, bag, discharge) |
| Motor Type | 4-stroke OHV, 170 cc | 170 cc 4-cycle OHV gas | 170cc 4-cycle OHV | 170cc OHV | 170cc 4-cycle OHV | 201cc 4-cycle OHV | 170cc 4-stroke OHV |
| Height Adjustments | 6 positions (1.5" – 3.9") | 6 positions, 1.25-3.75 in | 6 positions, 1.25 to 3.75 inches | 6 positions, 1.5" to 3.9" | 6 positions, 1.5-3.9 in | 8-position (1.2" to 3.75") | 6 positions (1.5" to 3.9") |
| Power Type | Gas | Gas | Gas | Gas | Gas | Gas | Gas |
| Engine Displacement | 170cc | 170cc | 170cc | 170cc | 170cc | – | 170cc |
| Application | – | – | – | Slopes | – | – | – |
| Engine Stroke | 4-Stroke | – | – | – | – | – | – |
| Dimensions | 56.5 × 22 × 42.5 inches | 61 × 22.8 × 41.5 inches | 61 × 22.8 × 41.5 inches | 32.9 × 16.5 × 22.6 inches | 32.9 × 16.5 × 22.6 inches | – | 59.8 × 22.8 × 38.4 inches |
| Weight | 59 pounds | 61.7 pounds | 61.7 pounds | – | – | 89.2 pounds | 75 pounds |
| Size | 21 Inch-170cc | 21 Inch-170cc-6 Position | 21-Inch Gas-Powered | – | 3IN1 Self-Propelled Gas Lawn Mower | 21 inch self propelled | 22 in. – 170 cc – Self Propelled |
| Color | Black | Blue | Blue | Ink | Black | – | Black |
| Model | DB8621S | A025054-A | LSSG-M10-III | V8721S1 | AV8621S1 | TMA-0562-N3-0513 | DB8622S |
You can evaluate cutting widths and engine displacements across powersmart 21 inch 170cc self propelled gas lawn mower alternatives.
Frequently asked questions
What is the heaviest mower in this list?
The BILT HARD 21-Inch 201cc model is the heaviest option at 89.2 pounds. This extra mass comes from its durable steel build and higher torque engine. You will need to manage this weight during transport and storage. Other models in the comparison are significantly lighter, with weights ranging from 59 to 75 pounds.
Which mower offers the widest cutting path?
The PowerSmart 22-Inch Gas Self-Propelled Lawn Mower provides the widest cutting path at 22 inches. This wider deck allows you to cover larger lawns more efficiently than the 21-inch models. It retains the 170cc engine and rear-wheel drive for stability while reducing the number of passes needed.
Do all these mowers have steel decks?
The product data does not explicitly state the deck material for every model. However, the PowerSmart, SENIX, AMERISUN, and BILT HARD models are described as having durable steel decks. You should verify the deck construction for the PowerSmart 22-Inch model if that detail is critical to your purchase decision.
Which model is best for small yards?
The SENIX 21-Inch Self-Propelled Gas Mower is recommended for small to medium yards. It features a 21-inch cutting width and a durable steel deck. This model provides versatile height settings and 3-in-1 mowing functions without the extra traction of rear-wheel drive, making it practical for smaller spaces.
How many height settings do these mowers have?
The SENIX 21-Inch 170cc model offers six height positions. The BILT HARD 21-Inch 201cc model provides eight height settings for versatile grass management. Specific height adjustment details are not listed for the other models in the comparison, so you should check the manual for those units.
Which mower has the highest engine displacement?
The BILT HARD 21-Inch model has the highest engine displacement at 201cc. This provides higher torque compared to the 170cc engines found in the PowerSmart and SENIX models. The extra power helps in challenging mowing conditions, though it contributes to the mower's heavier weight.
