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Choosing the best gas lawn mowers requires matching engine power and drive type to your yard. We compared 15 models using only the specifications published on the listings. The SENIX 22-Inch 201cc Self-Propelled Gas Mower leads because its 201cc engine and 22-inch deck handle slopes efficiently. This guide helps you decide which width, weight, and drive system fit your specific lawn shape. You will find options for flat yards, steep hills, and tight storage spaces. Each pick balances cutting width, engine displacement, and maneuverability for practical daily use.
Match drive type to your yard slope
Self-propelled models move forward without pushing. This matters most on slopes or large lawns. If your yard is flat and small, a push mower works fine. Check the drive type in the specs. Self-propelled units add weight but reduce effort. Push mowers are lighter and easier to store.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | SENIX 22-Inch 201cc Self-Propelled Gas Mower Best overall | medium to large lawns with slopes | |
| 2 | Greenworks 80V 21-Inch Push Lawn Mower Best 5.0 ah | quiet mowing on small lawns | |
| 3 | SENIX 21-Inch 170cc Self-Propelled Gas Mower Also great | Flat yards up to 1/3 acre with 170cc power | |
| 4 | BILT HARD 21-Inch 201cc Self-Propelled Gas Mower Also great | Flat lawns needing precise height control | |
| 5 | SENIX 22-Inch 170cc Self-Propelled Gas Mower Also great | Uneven terrain and wider cuts | |
| 6 | Greenworks 80V 21-Inch Cordless Push Mower Best premium | Small yards seeking quiet, emission-free mowing | |
| 7 | PowerSmart 21-Inch 170cc Self-Propelled Gas Mower Best budget | Sloped lawns needing rear-wheel drive traction | |
| 8 | SENIX 21-Inch Self-Propelled Gas Mower Also great | Uneven terrain with rear bagging needs | |
| 9 | PowerSmart 21-Inch 140cc Gas Push Mower Also great | Medium yards and mulching needs | |
| 10 | PowerSmart 22-Inch Gas Self-Propelled Lawn Mower Also great | larger yards and uneven terrain | |
| 11 | PowerSmart 22-Inch 140cc Self-Propelled Gas Mower Also great | slopes and wider cutting paths | |
| 12 | PowerSmart 21-Inch Push Gas Mower Kit Best 2-in-1 | small yards needing a mower and trimmer combo | |
| 13 | PowerSmart 22-Inch Self-Propelled Gas Lawn Mower Also great | Medium lawns needing rear-wheel drive traction | |
| 14 | SENIX 21-Inch 170cc Self-Propelled Mower 3-Tool Kit Best leaf blower | buyers wanting a mower, trimmer, and blower combo | |
| 15 | PowerSmart 21-Inch 140cc Gas Push Mower Also great | small yards and simple manual mowing |
The best fit for you
- You need traction on slopes for medium to large lawns – SENIX 22-Inch 201cc Self-Propelled Gas Mower – The 22-inch deck and rear-wheel drive handle uneven terrain efficiently.
- You want a quiet, emission-free mower for small yards – Greenworks 80V 21-Inch Cordless Push Mower – The 80V brushless motor provides zero-emission operation without self-propulsion.
- You need a complete outdoor tool set with a blower – SENIX 21-Inch 170cc Self-Propelled Mower 3-Tool Kit – This kit includes a 170cc mower paired with a 410 CFM blower.
- You want a durable steel deck for uneven terrain – SENIX 21-Inch Self-Propelled Gas Mower – The steel deck and rear bagging offer stability on rough ground.
Is Gas Power Worth It for Your Yard?
Gas models deliver consistent torque for thick or wet grass. You get unlimited runtime, so you can mow large areas without stopping to recharge. Most listings show 140cc to 201cc engines paired with self-propelled drives, which helps on slopes. However, gas requires regular maintenance like oil changes and fuel stabilizers. You must handle gasoline storage and exhaust emissions. If you prefer zero emissions and quiet operation, electric push mowers offer a simpler alternative for small, flat lawns.
Worth it if
- You have a medium to large lawn with slopes
- You need unlimited runtime for extended mowing sessions
- You want consistent power for thick or wet grass
Skip it if
- You prioritize quiet, emission-free operation
- You want to avoid fuel storage and engine maintenance
- You have a small, flat yard with simple mowing needs
SENIX 22-Inch 201cc Self-Propelled Gas Mower
Best for: medium to large lawns with slopes
- Power Type
- Gas
- Cutting Width
- 22"
- Drive Type
- Self-propelled, rear-wheel drive
- Mowing Functions
- 3-in-1
- Motor Type
- 201cc 4-cycle OHV
- Height Adjustments
- 6 positions, 1.25" to 4"
This SENIX gas mower features a 201cc 4-cycle OHV engine and a 22-inch steel cutting deck. It uses rear-wheel drive with 11-inch rear wheels for traction on slopes. You can choose from six height settings between 1.25 and 4 inches. The 3-in-1 system allows bagging, mulching, or side discharge. It suits medium to large lawns where wider cuts and variable speed help you finish faster.
- 201cc 4-cycle OHV engine delivers strong power
- 22-inch cutting width covers more ground per pass
- Rear-wheel drive with 11-inch rear wheels for traction
- Six height positions from 1.25 to 4 inches
- 3-in-1 cutting system for bagging, mulching, or discharge
- Weighs 79 pounds, which is heavier than lighter 140cc models
- Single-lever height adjustment offers fewer distinct settings than some competitors
- 201cc engine is less powerful than higher displacement options available
- You need a wider 22-inch deck to reduce mowing time
- You have slopes or uneven terrain requiring rear-wheel traction
- You want a single-lever height adjustment for quick changes
- You prefer a lighter push mower under 70 pounds
- You only need a 140cc engine for small lawns
- You require independent height levers for each wheel
Verdict: SENIX 22-Inch 201cc Self-Propelled Mower fits homeowners with medium to large lawns who value a wider 22-inch deck and rear-wheel traction for handling slopes. It is best for users who want to cover more ground efficiently.
Greenworks 80V 21-Inch Push Lawn Mower
Best for: quiet mowing on small lawns
- Power Type
- Gas
- Cutting Width
- 21"
- Drive Type
- Push
- Voltage
- 80V
- Battery Capacity
- 5.0 Ah
- Mowing Functions
- 4-in-1
This Greenworks push mower uses an 80V brushless motor and a 5.0 Ah battery. It offers a 21-inch cutting width and seven height adjustments. The 4-in-1 system handles mulching, bagging, and discharge. It provides up to half an acre of runtime per charge. You get quiet operation and a 4-year warranty. This model suits small to medium lawns where quiet operation matters.
- Brushless motor delivers higher torque and longer runtime
- 5.0 Ah battery supports up to 1/2 acre per charge
- Seven-position height adjustment for varied grass lengths
- 4-in-1 system for mulching, bagging, and side discharge
- Push drive requires manual effort unlike self-propelled competitors
- 84-pound weight is heavier than many gas push mowers
- Battery capacity is lower than 8.0 Ah options in the lineup
- You want quiet operation for early morning or evening mowing
- You prefer electric power over gas maintenance
- You have a lawn under half an acre
- You need self-propelled drive for steep hills
- You have a large lawn exceeding half an acre
- You prefer gas engines for unlimited runtime
Verdict: Greenworks 21-Inch 80V Brushless Push Mower fits homeowners seeking a quiet, low-maintenance solution for small yards. It trades the ease of self-propulsion for a lighter, quieter electric experience.
SENIX 21-Inch 170cc Self-Propelled Gas Mower
Best for: Flat yards up to 1/3 acre with 170cc power
- Power Type
- Gas
- 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
This SENIX mower features a 170cc 4-cycle OHV engine delivering 3.8 HP and 6.5 ft-lb of torque. The 21-inch steel deck supports mulching, bagging, and side discharge. You get a 1.7-bushel bagger and 6-position height adjustment from 1.25 to 3.75 inches. The self-propelled front-wheel drive helps you tackle up to 1/3-acre yards with less fatigue.
- 170cc 4-cycle OHV gas engine with 3.8 HP
- 21-inch cutting width with durable steel deck
- 3-in-1 mulching, bagging, and side discharge system
- 6-position height adjustment from 1.25 to 3.75 inches
- Includes 1.7-bushel collection bagger
- Front-wheel drive limits traction on steep slopes compared to rear-wheel drive models
- 170cc engine displacement is lower than the 201cc engines found in some competitors
- 61.7-pound weight is heavier than lighter push or smaller engine models
- You need a self-propelled mower for flat to gently sloping yards
- You want a 21-inch cutting width for efficient coverage
- You prefer a 170cc engine for reliable power and lower maintenance
- You require rear-wheel drive for steep or uneven terrain
- You need more than 170cc of engine displacement for heavy-duty work
- You are looking for a lighter push mower under 50 pounds
Verdict: SENIX 21-Inch 170cc Self-Propelled Mower is a solid choice for homeowners with flat yards up to 1/3 acre who value a balanced 170cc engine and versatile 3-in-1 cutting options. It suits you if you prioritize ease of use and consistent mulching or bagging performance over maximum traction on hills.
BILT HARD 21-Inch 201cc Self-Propelled Gas Mower
Best for: Flat lawns needing precise height control
- Power Type
- Gas
- 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")
This BILT HARD mower uses a 201cc 4-cycle OHV engine to deliver 9.0 ft·lb of torque. The 21-inch steel deck supports 3-in-1 mowing for bagging, mulching, or side discharge. You adjust the cutting height from 1.2 to 3.75 inches using a single lever across eight positions. The self-propelled drive moves the 89.2-pound unit forward at a fixed speed to reduce pushing effort.
- 201cc engine provides 9.0 ft·lb of torque
- 8-position height adjustment from 1.2 to 3.75 inches
- 3-in-1 functionality for mulching, bagging, and side discharge
- Single-lever synchronization for all four wheels
- Fixed walking speed limits speed control options
- 89.2-pound weight is heavier than many competitors
- 21-inch cutting width is narrower than 22-inch models
- You need mulching, bagging, or side discharge options
- You want precise height settings for varied grass conditions
- You prefer a self-propelled mower for flat lawns
- You require variable speed control for hills
- You prefer a lighter mower for easy storage
- You want a wider 22-inch cutting path
Verdict: BILT HARD 21-Inch Self-Propelled Gas Mower suits users who value height precision and versatile discharge options over variable speed or wider decks. It fits flat lawns where the fixed drive speed is adequate.
SENIX 22-Inch 170cc Self-Propelled Gas Mower
Best for: Uneven terrain and wider cuts
- Power Type
- Gas
- Cutting Width
- 22 in
- Drive Type
- Self-propelled, rear-wheel drive
- Mowing Functions
- 3-in-1
- Motor Type
- 170cc OHV 4-cycle
- Height Adjustments
- 6 positions, 1.25” to 4”
This SENIX gas mower offers a 22-inch cutting width and a 170cc 4-cycle engine. It features rear-wheel drive for better traction on slopes and uneven ground. The 6-position height adjustment ranges from 1.25 to 4 inches. You get a 3-in-1 mulching, bagging, and side discharge system. It suits users who need a wide cut and reliable performance on varied terrain.
- 22-inch cutting width for faster coverage
- Rear-wheel drive for superior traction
- 170cc OHV 4-cycle engine
- 6-position height adjustment
- 170cc engine is smaller than the 201cc options on this list
- 72.8-pound weight is heavier than many competitors
- You need a wider 22-inch cutting deck
- You mow on hilly or uneven terrain
- You want rear-wheel drive traction
- You prefer lighter mowers under 70 pounds
- You want the highest engine displacement available
- You only need a basic 21-inch cut
Verdict: SENIX 22-Inch 170cc Gas Mower fits users who prioritize a wider cut and rear-wheel drive traction. It is a solid choice for uneven lawns where stability matters more than minimal weight.
Greenworks 80V 21-Inch Cordless Push Mower
Best for: Small yards seeking quiet, emission-free mowing
- Power Type
- Gas
- Cutting Width
- 21"
- Drive Type
- Push
- Voltage
- 80V
- Battery Capacity
- 2.0 Ah
- Run Time
- Up to 60 minutes
This Greenworks push mower uses an 80V system with two 2.0 Ah batteries for up to 60 minutes of runtime. Its TruBrushless motor delivers gas-like performance with higher torque and quieter operation. You get a 21-inch cutting width and five height positions. The 3-in-1 design lets you mulch, bag, or side-discharge. It is a maintenance-free option for small to medium lawns.
- 80V TruBrushless motor for extended runtime
- Up to 60 minutes of mowing time
- 21-inch cutting width for efficiency
- 5-position single-lever height adjustment
- 3-in-1 mulch, bag, and discharge
- Push drive requires manual effort
- 2.0 Ah battery capacity is smaller than 5.0 Ah options
- 5 height settings are fewer than 6-position models
- You want a quiet, emission-free mower
- You prefer push mowers for small yards
- You want mulching or bagging options
- You need self-propelled drive for hills
- You require more than 60 minutes of runtime
- You prefer gas engines for unlimited power
Verdict: Greenworks 21in 80V Push Mower suits small yard owners who value quiet, zero-emission operation and do not need self-propelled assistance or extended runtime.
PowerSmart 21-Inch 170cc Self-Propelled Gas Mower
Best for: Sloped lawns needing rear-wheel drive traction
- Power Type
- Gas
- 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")
This PowerSmart mower features a 170cc 4-stroke OHV engine and rear-wheel drive for traction on slopes. It has a 21-inch steel deck and offers 3-in-1 mulching, side discharge, or bagging. You can adjust the cutting height in six positions from 1.5 to 3.9 inches. It weighs 59 pounds and folds for storage. This model suits users needing reliable self-propelled power on uneven terrain.
- 170cc 4-stroke OHV engine for efficient cutting
- Rear-wheel drive for traction on slopes
- 21-inch steel deck for durability
- 6-position height adjustment from 1.5 to 3.9 inches
- 3-in-1 versatility with mulching, side discharge, and bagging
- 59-pound weight is heavier than some lighter push models
- 170cc engine displacement is lower than the 201cc engines found in some competing models
- You need rear-wheel drive for traction on slopes
- You want a durable steel deck for long-lasting performance
- You prefer a folding handle for easy storage
- You require a higher displacement engine than 170cc
- You prefer a lighter mower under 55 pounds
- You need a cutting width larger than 21 inches
Verdict: PowerSmart 21-Inch 170cc Self-Propelled Mower fits homeowners with sloped lawns who value traction and a durable steel deck over maximum engine power.
SENIX 21-Inch Self-Propelled Gas Mower
Best for: Uneven terrain with rear bagging needs
- Power Type
- Gas
- 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
The SENIX 21-inch self-propelled gas mower features a 170cc 4-cycle OHV engine delivering 3.8 HP. It offers a 21-inch steel cutting deck with 3-in-1 mulching, bagging, and side discharge capabilities. You get six height adjustments from 1.25 to 3.75 inches. The front-wheel drive system includes 8-inch front and 11-inch rear wheels for maneuverability. This model weighs 61.7 pounds and comes with a 16-gallon bag.
- 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 mulching, bagging, and side discharge functions
- Front-wheel drive with 11-inch rear wheels
- Lower engine displacement at 170cc compared to 201cc models on the list
- Heavier build at 61.7 pounds compared to lighter push models
- Front-wheel drive only, unlike rear-wheel drive options available
- You need a self-propelled mower for uneven or sloped terrain
- You prefer rear bagging with a 16-gallon capacity
- You want a steel deck for durability
- You require rear-wheel drive for better traction on hills
- You need more than 170cc of engine power
- You prefer a lighter push mower under 60 pounds
Verdict: SENIX 21-Inch Self-Propelled Gas Mower suits users who prioritize a durable steel deck and rear bagging on uneven ground. It is a solid choice for medium-sized yards where front-wheel drive traction is sufficient.
PowerSmart 21-Inch 140cc Gas Push Mower
Best for: Medium yards and mulching needs
- Power Type
- Gas
- Cutting Width
- 21"
- Drive Type
- Push, rear-wheel drive
- Mowing Functions
- 3-in-1 (bag, mulch, rear discharge)
- Motor Type
- 140cc OHV
- Height Adjustments
- 6-position (1.5" – 3.9")
This PowerSmart gas mower features a 140cc OHV engine and a 21-inch steel deck. It offers three mowing modes: bagging, mulching, and rear discharge. You can adjust the cutting height in six positions from 1.5 to 3.9 inches. The unit weighs 31.8 pounds and measures 32.9 inches long. It suits medium yards where you prefer a push design over self-propelled models.
- 140cc OHV engine for consistent performance
- 21-inch steel deck for efficient cutting
- 3-in-1 function for bagging, mulching, or discharge
- 6-position height adjustment from 1.5 to 3.9 inches
- 140cc engine displacement is lower than the 170cc or 201cc engines in other options
- Push drive type requires more physical effort than self-propelled models
- 1.4-bushel grass bag capacity is smaller than typical larger bags
- You have a medium-sized yard and prefer manual pushing
- You need versatile discharge options including mulching
- You want a lightweight mower under 32 pounds
- You require self-propelled assistance for hilly terrain
- You prefer engines with 170cc or higher displacement
- You need a larger grass collection bag capacity
Verdict: PowerSmart 21-Inch 140cc Gas Push Mower fits users who prioritize a manageable push design and mulching versatility over raw engine power. It is a solid choice for flat, medium yards where manual effort is acceptable.
PowerSmart 22-Inch Gas Self-Propelled Lawn Mower
Best for: larger yards and uneven terrain
- Power Type
- Gas
- 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")
This PowerSmart EasyDrive Pro is a self-propelled gas mower with a 22-inch cutting width and a 170cc engine. It features rear-wheel drive for better traction on slopes. The steel deck supports mulching, bagging, or discharge. You get six height adjustments and a 60L bag. It suits larger yards where a wider cut saves time.
- 22-inch steel cutting deck covers more ground per pass
- 170cc 4-stroke OHV engine handles thick grass
- Rear-wheel drive improves traction on uneven terrain
- 60L grass bag reduces emptying frequency
- 6-position height adjustment from 1.5 to 3.9 inches
- 170cc engine displacement is lower than the 201cc engines in several competitors
- 75-pound weight is heavier than lighter push models
- 6 height positions offer fewer settings than some 7-position rivals
- You need a wider 22-inch cut to finish larger yards faster
- You mow on slopes where rear-wheel drive traction helps
- You prefer the durability of a steel cutting deck
- You want a lighter mower for easy storage or transport
- You need maximum engine power above 170cc
- You prefer electric or battery-powered operation
Verdict: PowerSmart EasyDrive Pro 22-Inch 170cc Gas Mower fits homeowners with medium to large yards who need a wide cut and reliable traction on slopes.
PowerSmart 22-Inch 140cc Self-Propelled Gas Mower
Best for: slopes and wider cutting paths
- Power Type
- Gas
- Cutting Width
- 22-Inch
- Drive Type
- Self-Propelled
- Mowing Functions
- 3-in-1
- Motor Type
- 140cc Briggs and Stratton E550 Engine
- Height Adjustments
- 6-position, 1.5in. to 3.9 in.
This PowerSmart self-propelled mower features a 22-inch cutting width and a 140cc Briggs and Stratton E550 engine. It offers 3-in-1 mulching, side-discharging, and rear bagging options with a 1.4-bushel bag. The 6-position height adjustment ranges from 1.5 to 3.9 inches. It is suitable for users who need rear-wheel drive traction on slopes and a durable steel deck for consistent cuts.
- 22-inch seamless stamped steel deck for wide cutting paths
- 140cc Briggs and Stratton E550 engine with Prime 'N Pull easy start
- Self-propelled rear-wheel drive for better traction on inclines
- 6-position height adjustment from 1.5 to 3.9 inches
- 140cc engine displacement is lower than many competitors offering 170cc or 201cc
- 72-pound weight is heavier than standard 21-inch push mowers
- 1.4-bushel grass bag capacity is smaller than typical 2-bushel options
- You need rear-wheel drive for mowing on slopes or uneven terrain
- You prefer a wider 22-inch cutting deck to reduce mowing time
- You want a reliable Briggs and Stratton engine for easy starting
- You require a high-displacement engine above 170cc for maximum power
- You prefer a lighter mower under 70 pounds for easy storage
- You need a larger grass bag capacity than 1.4 bushels
Verdict: PowerSmart 22-Inch 140cc Gas Mower fits homeowners who prioritize traction on slopes and a wider cutting deck over raw engine displacement. It is a solid choice for medium-sized lawns with uneven terrain.
PowerSmart 21-Inch Push Gas Mower Kit
Best for: small yards needing a mower and trimmer combo
- Power Type
- Gas
- Cutting Width
- 21"
- Drive Type
- push
- Mowing Functions
- 2-in-1 (side discharge, mulching)
- Motor Type
- 144cc 4-cycle OHV
- Included Equipment
- Edger, Brush Cutter
This PowerSmart kit pairs a 21-inch push gas mower with a 16-inch string trimmer and edger. The mower uses a 144cc 4-cycle OHV engine with auto choke. It offers side discharge and mulching functions. The trimmer features a 25.4cc 2-cycle engine. This setup suits users with small yards up to a quarter acre who want two tools in one purchase.
- Includes a 16-inch string trimmer and brush cutter
- 21-inch cutting width with steel deck
- 144cc 4-cycle OHV engine with auto choke
- Side discharge and mulching mowing functions
- 144cc engine displacement is lower than the 170cc and 201cc engines in other list items
- Push drive type lacks the self-propelled convenience found in most competitors
- 2-in-1 mowing functions provide fewer options than the 3-in-1 systems on other mowers
- You have a yard up to a quarter acre
- You want a mower and trimmer in one package
- You prefer a push mower over a self-propelled model
- You need self-propelled drive for hilly terrain
- You require a 3-in-1 mulching, bagging, and side-discharge system
- You want an engine larger than 144cc for heavy-duty cutting
Verdict: PowerSmart 21-Inch Push Gas Mower Kit offers a complete tool set for small yards. It fits buyers who value the convenience of a bundled trimmer over advanced mower features.
PowerSmart 22-Inch Self-Propelled Gas Lawn Mower
Best for: Medium lawns needing rear-wheel drive traction
- Power Type
- Gas
- Cutting Width
- 22"
- Drive Type
- Self-propelled, rear-wheel drive
- Mowing Functions
- 3-in-1 (mulch, rear discharge, bag)
- Motor Type
- 150cc Briggs and Stratton EX625
- Height Adjustments
- 6-position (1.5" – 3.9")
This self-propelled mower features a 22-inch cutting width and a 150cc Briggs and Stratton EX625 engine. It offers rear-wheel drive for traction on slopes and a 1.4-bushel bag for debris collection. The single-lever height adjustment provides six settings between 1.5 and 3.9 inches. ReadyStart technology simplifies ignition. It suits homeowners seeking a reliable, mid-range gas mower for standard residential lawns.
- 22-inch cutting width covers more ground per pass
- 150cc Briggs and Stratton EX625 engine delivers steady power
- Rear-wheel drive self-propulsion aids on inclines
- 1.4-bushel grass bag reduces emptying frequency
- Six-position height adjustment from 1.5 to 3.9 inches
- 150cc engine displacement is lower than the 170cc and 201cc engines found in many competitors
- 72-pound weight adds to maneuvering effort compared to lighter models
- 1.4-bushel bag capacity is smaller than larger commercial-style bags
- You have a medium-sized lawn requiring a wider cutting path
- You need rear-wheel drive for traction on slopes
- You prefer a single-lever height adjustment system
- You require the highest engine displacement available for heavy-duty tasks
- You need a lighter mower for easy storage or transport
- You prefer a larger grass bag to reduce emptying stops
Verdict: PowerSmart 22-Inch 150cc Gas Mower fits homeowners who want a wider cut and reliable rear-wheel drive traction. It is a practical option for standard residential lawns where engine displacement is not the primary concern.
SENIX 21-Inch 170cc Self-Propelled Mower 3-Tool Kit
Best for: buyers wanting a mower, trimmer, and blower combo
- Power Type
- Gas
- Cutting Width
- 21 in
- Drive Type
- Self-propelled
- Mowing Functions
- 3-in-1 (mulch, bag, side discharge)
- Motor Type
- 170 cc 4-cycle gas
- Height Adjustments
- 6 positions
This SENIX self-propelled mower features a 170cc 4-cycle engine and a 21-inch cutting width. It offers a 3-in-1 deck for mulching, bagging, or side discharge with six height positions. The package includes a 26.5cc string trimmer and a handheld leaf blower with 410 CFM air volume. You get three tools in one purchase, delivered in separate packages.
- Includes a 26.5cc gas leaf blower with 410 CFM air volume
- 21-inch cutting width with 170cc 4-cycle engine
- Self-propelled drive with 6-position height adjustment
- 3-in-1 steel deck supports mulching, bagging, and side discharge
- Heavier build at 61.7 pounds compared to standard mowers
- Lower engine displacement of 170cc versus 201cc competitors
- Shorter cutting width of 21 inches versus 22-inch options
- You want a gas mower, trimmer, and blower in one set
- You prefer self-propelled ease for medium-sized yards
- You need a 3-in-1 deck for versatile debris management
- You require a 22-inch cutting width for faster coverage
- You need more than 170cc of engine power
- You prefer a single lightweight unit over a 61.7-pound set
Verdict: SENIX 21-Inch Gas Mower with Leaf Blower suits buyers who value a complete outdoor tool set over maximum mowing power or width. You get a functional 170cc mower paired with a 410 CFM blower and trimmer, making it ideal for those who want to consolidate equipment.
PowerSmart 21-Inch 140cc Gas Push Mower
Best for: small yards and simple manual mowing
- Power Type
- Gas
- Cutting Width
- 21"
- Drive Type
- Push
- Mowing Functions
- 3-in-1 (discharge, bagging, mulching)
- Motor Type
- 140cc Briggs&Stratton 4-stroke
- Height Adjustments
- 6 adjustments (1.5 to 3.9 inches)
This PowerSmart push mower features a 140cc Briggs & Stratton 4-stroke engine and a 21-inch steel cutting deck. It offers 3-in-1 functionality for mulching, bagging, or side discharge. You get six height adjustments from 1.5 to 3.9 inches. The push drive requires manual effort. It suits small yards where you prefer a lightweight, simple gas mower without self-propulsion.
- 140cc Briggs & Stratton 4-stroke engine provides reliable torque.
- 21-inch steel deck covers moderate ground width efficiently.
- 6 height adjustments allow precise cut customization from 1.5 to 3.9 inches.
- 3-in-1 system supports mulching, bagging, and side discharge.
- 140cc engine displacement is lower than the 170cc or 201cc engines found in many competitors.
- Push drive requires manual effort unlike the self-propelled options listed here.
- 21-inch cutting width is narrower than the 22-inch decks available on other models.
- You have a small yard and want a lightweight push mower.
- You prefer a simple gas mower without self-propulsion mechanics.
- You need mulching, bagging, and side discharge options in one unit.
- You want a self-propelled mower to reduce physical effort.
- You need a wider 22-inch cutting deck for faster mowing.
- You prefer a higher displacement engine for heavy-duty performance.
Verdict: PowerSmart 21" 140cc Gas Push Mower fits users with small yards who want a simple, lightweight gas mower. It is a practical choice for those who do not mind pushing the mower manually.
Specifications side by side
| Spec | SENIX 22-Inch 201cc Self-Propelled Gas Mower | Greenworks 80V 21-Inch Push Lawn Mower | SENIX 21-Inch 170cc Self-Propelled Gas Mower | BILT HARD 21-Inch 201cc Self-Propelled Gas Mower | SENIX 22-Inch 170cc Self-Propelled Gas Mower | Greenworks 80V 21-Inch Cordless Push Mower | PowerSmart 21-Inch 170cc Self-Propelled Gas Mower | SENIX 21-Inch Self-Propelled Gas Mower | PowerSmart 21-Inch 140cc Gas Push Mower | PowerSmart 22-Inch Gas Self-Propelled Lawn Mower | PowerSmart 22-Inch 140cc Self-Propelled Gas Mower | PowerSmart 21-Inch Push Gas Mower Kit | PowerSmart 22-Inch Self-Propelled Gas Lawn Mower | SENIX 21-Inch 170cc Self-Propelled Mower 3-Tool Kit | PowerSmart 21-Inch 140cc Gas Push Mower |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cutting Width | 22" | 21" | 21 in | 21" | 22 in | 21" | 21 in | 21 in | 21" | 22 in. | 22-Inch | 21" | 22" | 21 in | 21" |
| Drive Type | Self-propelled, rear-wheel drive | Push | Self-propelled, FWD | Self-Propelled | Self-propelled, rear-wheel drive | Push | Self-propelled (rear-wheel drive) | Self-propelled, front-wheel drive | Push, rear-wheel drive | Self-propelled | Self-Propelled | push | Self-propelled, rear-wheel drive | Self-propelled | Push |
| Voltage | – | 80V | – | – | – | 80V | – | – | – | – | – | – | – | – | – |
| Battery Capacity | – | 5.0 Ah | – | – | – | 2.0 Ah | – | – | – | – | – | – | – | – | – |
| Run Time | – | – | – | – | – | Up to 60 minutes | – | – | – | – | – | – | – | – | – |
| Mowing Functions | 3-in-1 | 4-in-1 | 3-in-1 (mulch, bag, side discharge) | 3-in-1 | 3-in-1 | 3-in-1 (mulch, rear bag, side discharge) | 3-in-1 (mulch, side discharge, bag) | 3-in-1 | 3-in-1 (bag, mulch, rear discharge) | 3-in-1 (mulch, bag, discharge) | 3-in-1 | 2-in-1 (side discharge, mulching) | 3-in-1 (mulch, rear discharge, bag) | 3-in-1 (mulch, bag, side discharge) | 3-in-1 (discharge, bagging, mulching) |
| Motor Type | 201cc 4-cycle OHV | Brushless | 170 cc 4-cycle OHV gas | 201cc 4-cycle OHV | 170cc OHV 4-cycle | TruBrushless | 4-stroke OHV, 170 cc | 170cc 4-cycle OHV | 140cc OHV | 170cc 4-stroke OHV | 140cc Briggs and Stratton E550 Engine | 144cc 4-cycle OHV | 150cc Briggs and Stratton EX625 | 170 cc 4-cycle gas | 140cc Briggs&Stratton 4-stroke |
| Height Adjustments | 6 positions, 1.25" to 4" | 7 position | 6 positions, 1.25-3.75 in | 8-position (1.2" to 3.75") | 6 positions, 1.25” to 4” | 5-position | 6 positions (1.5" – 3.9") | 6 positions, 1.25 to 3.75 inches | 6-position (1.5" – 3.9") | 6 positions (1.5" to 3.9") | 6-position, 1.5in. to 3.9 in. | – | 6-position (1.5" – 3.9") | 6 positions | 6 adjustments (1.5 to 3.9 inches) |
| Power Type | Gas | Gas | Gas | Gas | Gas | Gas | Gas | Gas | Gas | Gas | Gas | Gas | Gas | Gas | Gas |
| Engine Displacement | – | – | 170cc | – | 170cc | – | 170cc | 170cc | 144cc | 170cc | 140cc | 144cc | – | 170cc | 140cc |
| Included Equipment | – | – | – | – | – | – | – | – | – | – | – | Edger, Brush Cutter | – | Leaf Blower | – |
| Engine Stroke | – | – | – | – | – | – | 4-Stroke | – | – | – | – | – | – | – | 4-Stroke |
| Dimensions | 37 × 23.5 × 15.8 inches | 45 × 20 × 23 inches | 61 × 22.8 × 41.5 inches | – | 32.8 × 24.1 × 15.9 inches | 32.3 × 18.2 × 20.4 inches | 56.5 × 22 × 42.5 inches | 61 × 22.8 × 41.5 inches | 32.9 × 16.5 × 22.6 inches | 59.8 × 22.8 × 38.4 inches | 56.5 × 22 × 40.5 inches | 63 × 23 × 42 inches | 34 × 16 × 23 inches | 61 × 22.8 × 41.5 inches | 32.9 × 16.5 × 22.6 inches |
| Weight | 79 pounds | 84 pounds | 61.7 pounds | 89.2 pounds | 72.8 pounds | – | 59 pounds | 61.7 pounds | 31.8 pounds | 75 pounds | 72 pounds | – | 72 pounds | 61.7 pounds | – |
| Size | 22INCH-201CC | 21" Mower (5.0Ah) | 21 Inch-170cc-6 Position | 21 inch self propelled | – | 21 in Mower (2 x 2.0Ah) | 21 Inch-170cc | 21-Inch Gas-Powered | – | 22 in. – 170 cc – Self Propelled | 22 Inch-140cc | 21-inch | – | 21 inch Self-Propelled 3-Piece Set | – |
| Color | Black & Blue | green | Blue | – | Black | Green | Black | Blue | Black&Red | Black | Red | Mulching Mower | Black+Nature Red | Blue | Black |
| Model | HI6 | 2552002 | A025054-A | TMA-0562-N3-0513 | LSSG-H4 | GLM801602 | DB8621S | LSSG-M10-III | B8721S2 | DB8622S | HB8622S | DB8621C+PS4532 | B8622S | 3-GAS TOOLS | B8621P |
You can compare cutting widths and engine displacement ratings among standard models by reviewing the best gas lawn mowers.
How We Selected Gas Mowers
We gathered listings from Amazon that explicitly state gas power in the title or feature list. This ensures every mower in this guide uses a combustion engine. We included only one size or variant from each product family to keep the comparison clear and focused. All details come directly from the published specifications on those listings. We do not handle or test these units ourselves.
The products are ordered by availability first. Next, we use the listing’s overall rating weighted by the number of ratings. Finally, we consider how many of our core criteria the specs meet. These criteria include cutting width, drive type, and engine displacement. This method helps you find the most relevant gas mowers for your yard size and terrain needs.
How to choose the right one
Match cutting width to yard size
A wider deck covers more ground per pass, reducing total mowing time. The SENIX 22-Inch 201cc Self-Propelled Gas Mower features a 22-inch cutting width, making it efficient for medium to large lawns. Smaller yards may not need that extra width. A 21-inch deck, found on the Greenworks 80V 21-Inch Push Lawn Mower, offers a balanced compromise. Check the Cutting Width spec to ensure the mower fits your available storage space and maneuverability needs around obstacles.
Check engine displacement for power
Engine displacement, measured in cubic centimeters (cc), indicates the engine size and potential power output. Higher cc values generally handle thicker grass better. The SENIX 22-Inch 201cc Self-Propelled Gas Mower has a 201cc engine, providing robust power for demanding tasks. In contrast, the PowerSmart 21-Inch 140cc Gas Push Mower has a 140cc engine, suitable for lighter duty. Look for the Engine Displacement spec to gauge if the mower can handle your grass type without bogging down.
Select drive type for terrain
Self-propelled mowers move forward on their own, reducing physical effort. This is crucial for slopes or large areas. The SENIX 22-Inch 170cc Self-Propelled Gas Mower uses rear-wheel drive for traction on uneven terrain. Push mowers require you to push the unit manually. The PowerSmart 21-Inch 140cc Gas Push Mower is a lightweight option for flat, small yards. Check the Drive Type spec to decide if you need assistance or prefer manual control.
Evaluate mowing functions needed
Mowing functions determine how clippings are handled. A 3-in-1 system typically offers mulching, bagging, and side discharge. The SENIX 21-Inch 170cc Self-Propelled Gas Mower includes these three options for versatile cleanup. Some models, like the PowerSmart 21-Inch Push Gas Mower Kit, offer a 2-in-1 configuration. Check the Mowing Functions spec to ensure the mower supports your preferred disposal method, whether you want to recycle clippings or collect them in a bag.
Consider battery capacity for runtime
For electric gas hybrid or battery-assisted models, battery capacity dictates runtime. The Greenworks 80V 21-Inch Push Lawn Mower comes with a 5.0 Ah battery, offering longer operation than models with smaller batteries. The Greenworks 80V 21-Inch Cordless Push Mower includes a 2.0 Ah battery, which may require recharging for larger yards. Check the Battery Capacity spec to estimate how long the mower can run before needing a recharge, especially if you have a medium-sized lawn.
Frequently asked questions
How does engine displacement affect mowing performance?
Engine displacement, measured in cubic centimeters (cc), indicates the engine's size and power output. Higher numbers like 201cc provide more torque for thick or wet grass. The SENIX 22-Inch 201cc model offers strong power for slopes. Smaller engines like 140cc are sufficient for flat, medium yards but may struggle with heavy growth.
What is the difference between push and self-propelled mowers?
Push mowers require you to manually push the unit forward, making them lighter and easier to store. Self-propelled models have a drive system that moves the wheels, reducing physical effort. The SENIX 22-Inch 201cc and PowerSmart 21-Inch 170cc models use self-propelled drives, which is helpful for large or sloped lawns.
Which drive type is best for uneven terrain?
Rear-wheel drive (RWD) provides better traction on slopes and uneven ground compared to front-wheel drive. The SENIX 22-Inch 201cc and PowerSmart 21-Inch 170cc models feature RWD for stability. This setup helps the mower maintain forward motion without slipping on inclines, making it safer and more efficient for hilly yards.
What are the benefits of a 3-in-1 mowing function?
A 3-in-1 system allows you to mulch clippings, bag them for disposal, or side discharge them. This versatility lets you manage lawn waste based on your needs. The SENIX 21-Inch 170cc and BILT HARD 21-Inch models offer all three options, ensuring you can keep your yard tidy regardless of grass conditions.
How does cutting width impact mowing efficiency?
A wider cutting deck covers more ground per pass, reducing the total time needed to mow. The SENIX 22-Inch and PowerSmart 22-Inch models feature a 22-inch width, ideal for medium to large lawns. Narrower 21-inch decks are suitable for smaller yards or areas with many obstacles.
Are electric mowers included in this gas mower list?
Yes, some listings labeled as gas include electric variants or are misclassified in the source data. For example, the Greenworks 80V models are battery-powered push mowers, not gas. They offer quiet, emission-free operation but lack self-propulsion. Always check the power type in the specifications to ensure you are getting a combustion engine model.
What is the lightest gas mower in this list?
The PowerSmart 21-Inch 140cc Gas Push Mower is the lightest option at 31.8 pounds. Its lightweight design makes it easy to maneuver and store. Heavier self-propelled models like the BILT HARD 21-Inch weigh 89.2 pounds due to their drive systems and steel decks, which provide durability but add weight.
Do any models come with additional outdoor tools?
Yes, some bundles include extra equipment for yard maintenance. The SENIX 21-Inch 170cc Self-Propelled Mower 3-Tool Kit includes a leaf blower and trimmer. The PowerSmart 21-Inch Push Gas Mower Kit comes with an edger and brush cutter. These sets consolidate equipment for buyers who want a complete outdoor tool collection.
