6 Best Alternatives to the SENIX 22-Inch Gas Walk-Behind String (2026)
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If you are searching for senix 22 inch gas walk behind string alternatives, you likely want a machine that handles dense brush but may need different specs. The SENIX 22-Inch model features a 160cc engine and a 22-inch steel deck. Its 14-inch rubber wheels help with rough terrain, and it cuts from 1.57 to 3 inches. This setup works well for clearing weeds on uneven ground. However, its push-only drive and large footprint might not suit every yard.
Some buyers prefer self-propelled models for easier handling on slopes. Others need a narrower deck for tight spaces or a smaller engine for lighter tasks. This list of 6 options includes units with varying cutting widths, drive types, and engine sizes. Each alternative shares key specifications with the original SENIX unit, such as gas power and steel construction. You can compare these details to find the right fit for your property.
Our top pick: SENIX 22-Inch Gas Walk-Behind String Trimmer.
How these models differ from SENIX
PowerSmart 18-Inch 144cc Gas Push Mower
The PowerSmart 18-Inch model uses a 144cc engine, which is slightly less powerful than the SENIX 160cc unit. It offers an 18-inch cutting width, making it narrower than the SENIX 22-inch deck. This narrower cut provides better maneuverability in tight spaces but requires more passes to cover the same area. It weighs 58.4 pounds, which is heavier than the SENIX 48.5 pounds. The PowerSmart is a push mower with side discharge, lacking the SENIX’s adjustable height settings and large 14-inch wheels. Choose this if you have a small, flat yard and prioritize compact size over wide cutting swath.
BILT HARD 20-Inch 144cc Gas Push Mower
The BILT HARD 20-Inch model features a 144cc engine, similar in displacement to the PowerSmart but paired with a 20-inch steel deck. This deck is two inches narrower than the SENIX 22-inch width. It is a push mower with side discharge, meaning you must provide all the forward momentum. The SENIX model includes large 14-inch rubber wheels for rough terrain, whereas the BILT HARD relies on standard push mechanics. It targets small, flat lawns where durability is key. If you need a balance between the SENIX’s wide cut and a more manageable 20-inch deck, this is a solid push-only alternative for standard lawn care tasks.
BILT HARD 20-Inch 144cc Gas Push Mower
This BILT HARD 20-Inch model is another push mower with a 144cc engine and a 20-inch cutting width. It weighs 51 pounds, slightly lighter than the SENIX 48.5 pounds. Like the previous BILT HARD, it lacks the SENIX’s large 14-inch rubber wheels and 5-position height adjustment. It is designed for standard lawn care rather than dense brush clearing. The 20-inch deck is narrower than the SENIX 22-inch deck, requiring more overlapping passes. Select this if you prefer a manual push experience and do not need the heavy-duty brush hog capabilities or the wider cutting swath of the SENIX string trimmer.
SENIX 22-Inch 170cc Self-Propelled Gas Mower
The SENIX 22-Inch 170cc Self-Propelled Mower upgrades the engine to 170cc, offering more power than the 160cc string trimmer. It adds self-propulsion, removing the need to push the unit manually. This model includes a bagging system, which the string trimmer lacks. It weighs 72.8 pounds, significantly heavier than the 48.5-pound string trimmer. The deck width remains 22 inches. Choose this if you want the same wide cut but need self-propelled ease and grass collection. It is better for maintained lawns than for clearing dense, overgrown brush with string trimmer line.
SENIX 22-Inch 170cc Self-Propelled Gas Mower
This SENIX 22-Inch 170cc Self-Propelled Mower also features a 170cc engine and self-propelled drive. It weighs 72.8 pounds and offers a 22-inch steel deck. Unlike the string trimmer, it provides rear-wheel traction for better control on slopes. It lacks the 14-inch rubber wheels and adjustable height settings of the string trimmer. The self-propelled mechanism reduces user effort significantly. Pick this alternative if you have sloped terrain and need reliable traction. It is optimized for mowing grass rather than trimming dense brush, offering a different use case despite sharing the brand and deck width.
PowerSmart 22-Inch Gas Self-Propelled Lawn Mower
The PowerSmart 22-Inch 170cc Self-Propelled Mower matches the SENIX string trimmer’s deck width but upgrades to a 170cc engine and self-propelled drive. It weighs 75 pounds, making it much heavier than the 48.5-pound SENIX string trimmer. It features rear-wheel traction and a steel deck, suitable for thick grass and uneven terrain. Unlike the string trimmer, it is designed for standard mowing, not brush clearing with string. Choose this if you need a self-propelled mower with a wide 22-inch cut and robust traction for challenging lawns, sacrificing the versatility of string trimming for dedicated mowing performance.
Quick picks
Our 7 picks
SENIX 22-Inch Gas Walk-Behind String Trimmer
Best for: clearing dense weeds and brush
- Power Source
- 160cc 4-cycle gas engine
- Cutting Width
- 22 in
- Drive Type
- push
- Deck Material
- steel
- Cutting Height
- 1.57-3 in, 5 positions
- Application
- Yard, Lawn
View on Amazon: SENIX 22-Inch Gas Walk-Behind String Trimmer Affiliate link
This SENIX 22-inch walk-behind string trimmer uses a 160cc 4-cycle engine to tackle dense weeds and overgrown brush. It features a steel deck and 14-inch rubber high wheels for stability on rough terrain. You get five cutting height settings ranging from 1.57 to 3 inches. The fold-down handle aids storage. This unit is designed for large properties or farm use where a standard mower cannot handle heavy vegetation.
Pros
- 22-inch cutting swath for efficient coverage
- 160cc 4-cycle gas engine provides strong power
- 14-inch rubber high wheels handle uneven ground
- Steel cutting deck offers durability
- Fold-down handle design allows for compact storage
Cons
- Push-only drive requires manual effort
- 48.5-pound weight is heavy for maneuvering
- No self-propulsion for steep slopes
Good fit if
- You need to clear dense brush and weeds
- You have a large property with rough terrain
- You want a heavy-duty steel deck
Skip if
- You prefer a self-propelled mower for ease
- You only need to cut short, manicured grass
- You want to reduce physical exertion
Verdict: SENIX 22-Inch Gas Brush Hog is a robust tool for users who need to manage overgrown areas and dense vegetation on uneven ground. It suits those willing to push the unit for superior cutting power and durability.
PowerSmart 18-Inch 144cc Gas Push Mower
Best for: Small, flat yards needing tight maneuverability
- Power Source
- gas, 144cc 4-cycle
- Cutting Width
- 18 in
- Drive Type
- push
- Deck Material
- steel
- Cutting Height
- 1.5-3.9 in, 5 positions
- Mowing Function
- side discharge
View on Amazon: PowerSmart 18-Inch 144cc Gas Push Mower Affiliate link
This PowerSmart model features an 18-inch steel deck and a 144cc 4-cycle engine. It is a walk-behind push mower with side discharge. The cutting height adjusts from 1.5 to 3.9 inches across five positions. It weighs 58.4 pounds and measures 27.2 inches long. This unit suits small yards where a narrower cut width is manageable.
Pros
- 144cc 4-cycle OHV engine with auto choke
- Durable 18-inch steel deck
- 5-position height adjustment from 1.5 to 3.9 inches
- Side discharge design for thick grass
Cons
- 18-inch cutting width is narrower than the 20-22 inch options on this list
- Push drive requires more physical effort than self-propelled models
- 58.4-pound weight is substantial for a push mower
Good fit if
- You have a small lawn under 5,000 square feet
- You prefer a narrower deck for maneuvering around tight obstacles
- You want a durable steel deck over plastic
Skip if
- You need a self-propelled drive for hilly terrain
- You require a cutting width of 20 inches or more
- You want to mulch or bag clippings instead of side discharging
Verdict: PowerSmart 18-Inch Gas Push Mower is a compact, durable option for small, flat lawns where its 18-inch width is an asset. It fits buyers who prioritize steel deck durability and tight maneuverability over the wider cuts of the other alternatives listed.
BILT HARD 20-Inch 144cc Gas Push Mower
Best for: Small flat lawns needing durable push mowing
- Power Source
- 144cc 4-stroke OHV gas
- Cutting Width
- 20 in
- Drive Type
- push
- Deck Material
- steel
- Cutting Height
- 0.6-2.4 in, 6 positions
- Mowing Function
- side discharge
View on Amazon: BILT HARD 20-Inch 144cc Gas Push Mower Affiliate link
This BILT HARD mower features a 144cc 4-stroke OHV engine and a 20-inch steel deck. It uses a push drive type with side discharge. You get six cutting height positions ranging from 0.6 to 2.4 inches. The 27.1 fl.oz fuel tank supports longer runs. It suits small yards where self-propulsion is unnecessary. The steel deck offers durability for residential lawn maintenance.
Pros
- 144cc 4-stroke OHV gas engine delivers 3.4HP max power.
- 20-inch steel cutting deck provides durable coverage.
- Dual-lever 6-position height adjustment from 0.6 to 2.4 inches.
- 27.1 fl.oz fuel tank reduces refill frequency.
Cons
- Push drive type requires manual effort to move.
- 20-inch cutting width is narrower than 22-inch alternatives.
- Side discharge only lacks bagging or mulching options.
Good fit if
- You have a small lawn under 5,000 square feet.
- You prefer a lightweight push mower for easy storage.
- You want a durable steel deck for long-term use.
Skip if
- You need self-propelled wheels for hilly terrain.
- You want a wider 22-inch cutting path.
- You prefer side-discharge-free mulching or bagging systems.
Verdict: BILT HARD 20-Inch Push Gas Mower fits users with small, flat lawns who prioritize durability over self-propulsion. It lacks the width and drive assistance of the SENIX 22-inch models on this list.
BILT HARD 20-Inch 144cc Gas Push Mower
Best for: small lawns and manual mowing preference
- Power Source
- 144cc 4-cycle OHV gas
- Cutting Width
- 20 in
- Drive Type
- push
- Cutting Height
- 0.7 in to 3.2 in, 8 positions
- Mowing Function
- 2-in-1
- Application
- Yard, Garden, Lawn
View on Amazon: BILT HARD 20-Inch 144cc Gas Push Mower Affiliate link
The BILT HARD 20-inch push mower uses a 144cc 4-cycle OHV engine with auto choke. It features an 8-position height adjustment from 0.7 to 3.2 inches. The 20-inch deck cuts grass efficiently. You get 7-inch rear and 6-inch front wheels for smooth movement. This model is a push mower, not self-propelled. It suits small to medium yards where you prefer manual control.
Pros
- 144cc 4-cycle OHV engine with auto choke for easy starting
- 8-position single-lever height adjustment from 0.7 to 3.2 inches
- 20-inch cutting deck with specialized blade for clean cuts
- Double ball-bearing wheels for smooth movement
Cons
- Push drive requires manual effort unlike self-propelled competitors
- 20-inch cutting width is narrower than the 22-inch standard
- Heavier at 51 pounds, making transport more difficult
Good fit if
- You want a reliable push mower for smaller lawns
- You prefer manual control over self-propelled mechanisms
- You need simple height adjustments with a single lever
Skip if
- You need self-propelled drive for hilly terrain
- You require a wider 22-inch cutting deck
- You want a lighter mower for easy storage
Verdict: BILT HARD 20-Inch Push Gas Mower is a solid choice for homeowners who do not mind pushing the mower. It offers precise height control and a durable engine for standard lawn care tasks.
SENIX 22-Inch 170cc Self-Propelled Gas Mower
Best for: Small to medium yards needing bagging
- Power Source
- 170cc gas
- Cutting Width
- 22 in
- Drive Type
- Self-propelled
- Deck Material
- Steel
- Cutting Height
- 1.25-4 in, 6 positions
- Mowing Function
- 3-in-1
View on Amazon: SENIX 22-Inch 170cc Self-Propelled Gas Mower Affiliate link
The SENIX 22-inch self-propelled mower features a 170cc 4-cycle OHV engine and rear-wheel drive. It offers a 22-inch steel deck with 6 height settings from 1.25 to 4 inches. The unit includes a 19-gallon bagger and mulch plug for versatile yard maintenance. Its foldable handle aids storage. This model suits users seeking reliable power for small to medium lawns without complex electronics.
Pros
- 170cc 4-cycle OHV engine for consistent power
- 22-inch steel cutting deck for wider coverage
- Rear-wheel drive self-propulsion for easier pushing
- 6-position single-lever height adjustment from 1.25 to 4 inches
Cons
- Single-speed drive limits control on steep slopes
- 72.8 pounds weight may be heavy for some users
- No variable speed control for precise maneuvering
Good fit if
- You want a self-propelled mower with a 22-inch deck
- You prefer rear-wheel drive for better traction
- You need a bagger included for grass disposal
Skip if
- You require variable speed drive for steep terrain
- You prefer a lighter mower under 70 pounds
- You want electric or battery-powered operation
Verdict: SENIX 22" Self-Propelled 170cc Gas Mower fits users who need a sturdy, self-propelled mower with a wide steel deck and included bagging system for small to medium yards.
SENIX 22-Inch 170cc Self-Propelled Gas Mower
Best for: sloped lawns requiring rear-wheel traction
- Power Source
- Gas
- Cutting Width
- 22 in
- Drive Type
- Self-propelled
- Deck Material
- Steel
- Cutting Height
- 1.25–4 in, 6 positions
- Mowing Function
- 3-in-1
View on Amazon: SENIX 22-Inch 170cc Self-Propelled Gas Mower Affiliate link
This SENIX mower features a 170cc 4-cycle engine and a 22-inch cutting width. It uses rear-wheel drive with 11-inch wheels for traction on slopes. The steel deck includes a vortex tunnel to reduce clogging. You get six cutting heights from 1.25 to 4 inches. It weighs 72.8 pounds and offers mulching, bagging, and side discharge options.
Pros
- 170cc 4-cycle engine delivers 3.8 HP
- Rear-wheel drive with 11-inch rear wheels
- 22-inch manganese steel blade resists wear
- Vortex tunnel deck prevents grass clogging
- Steel deck with 6 cutting height positions
Cons
- Heavier at 72.8 pounds than some competitors
- No remote start or electronic ignition mentioned
- Gas engine requires fuel mixing and maintenance
Good fit if
- You have hilly or uneven terrain
- You need a wide 22-inch cutting path
- You prefer rear-wheel drive traction
Skip if
- You want a lightweight manual push mower
- You prefer electric or battery power
- You need a compact storage footprint
Verdict: SENIX 22-Inch Self-Propelled Gas Mower suits users with sloped lawns who need reliable rear-wheel traction and a wide cutting deck for efficient mowing.
PowerSmart 22-Inch Gas Self-Propelled Lawn Mower
Best for: slopes and thick grass with a steel deck
- Power Source
- Gas
- Cutting Width
- 22 in
- Drive Type
- Self-propelled
- Deck Material
- Steel
- Cutting Height
- 1.5-3.9 in, 6 positions
- Mowing Function
- 3-in-1
View on Amazon: PowerSmart 22-Inch Gas Self-Propelled Lawn Mower Affiliate link
This 22-inch self-propelled mower features a 170cc 4-stroke OHV engine and a steel cutting deck. It offers rear-wheel drive for better traction on slopes. You get a 60L grass bag and six height settings from 1.5 to 3.9 inches. The 75-pound build suggests durability. It suits users needing reliable power for thick grass and uneven terrain.
Pros
- 170cc 4-stroke OHV engine for thick grass
- 22-inch steel cutting deck for durability
- Rear-wheel drive for slope traction
- 60L grass bag reduces emptying frequency
- 6-position height adjustment from 1.5 to 3.9 inches
Cons
- 75-pound weight makes it bulky to maneuver
- No electric start mentioned, relying on recoil
- No variable speed control listed for self-propulsion
Good fit if
- You need a steel deck for long-term durability
- You mow on slopes requiring rear-wheel traction
- You prefer a large 60L grass bag
Skip if
- You want a lightweight mower under 70 pounds
- You require electric start for easy ignition
- You need variable speed control for the self-propulsion
Verdict: PowerSmart EasyDrive Pro 22-Inch 170cc is a heavy-duty option for users prioritizing a steel deck and rear-wheel traction. It fits those tackling uneven terrain with thick grass.
Specifications side by side
| Spec | SENIX 22-Inch Gas Walk-Behind String Trimmer | PowerSmart 18-Inch 144cc Gas Push Mower | BILT HARD 20-Inch 144cc Gas Push Mower | BILT HARD 20-Inch 144cc Gas Push Mower | SENIX 22-Inch 170cc Self-Propelled Gas Mower | SENIX 22-Inch 170cc Self-Propelled Gas Mower | PowerSmart 22-Inch Gas Self-Propelled Lawn Mower |
|---|---|---|---|---|---|---|---|
| Power Source | 160cc 4-cycle gas engine | gas, 144cc 4-cycle | 144cc 4-stroke OHV gas | 144cc 4-cycle OHV gas | 170cc gas | Gas | Gas |
| Cutting Width | 22 in | 18 in | 20 in | 20 in | 22 in | 22 in | 22 in |
| Drive Type | push | push | push | push | Self-propelled | Self-propelled | Self-propelled |
| Deck Material | steel | steel | steel | not stated | Steel | Steel | Steel |
| Cutting Height | 1.57-3 in, 5 positions | 1.5-3.9 in, 5 positions | 0.6-2.4 in, 6 positions | 0.7 in to 3.2 in, 8 positions | 1.25-4 in, 6 positions | 1.25–4 in, 6 positions | 1.5-3.9 in, 6 positions |
| Mowing Function | not stated | side discharge | side discharge | 2-in-1 | 3-in-1 | 3-in-1 | 3-in-1 |
| Voltage | not stated | not stated | not stated | not stated | 170cc | 170cc | 170cc |
| Application | Yard, Lawn | Yard, Small Yards, Lawn | Yard, Garden, Lawn | Yard, Garden, Lawn | Garden, Lawn | Lawn | Lawn |
| Dimensions | 35.4 × 22.7 × 43.3 inches | 27.2 × 14.3 × 20.1 inches | 55.6 × 20.6 × 34.4 inches | 57.4 × 21.6 × 38.5 inches | 37.5 × 23.8 × 15.9 inches | 32.8 × 24.1 × 15.9 inches | 59.8 × 22.8 × 38.4 inches |
| Weight | 48.5 pounds | 58.4 pounds | not stated | 51 pounds | 72.8 pounds | 72.8 pounds | 75 pounds |
| Size | 22 Inch Walk Behind String Trimmer | 18 Inch-144cc-5 Heights | not stated | 2-in-1 144cc Hand Push | 22INCH-170CC | not stated | 22 in. - 170 cc - Self Propelled |
| Color | Black | red | Blue | Blue | Blue | Black | Black |
| Model | STMG-L-001A-004 | DB8618C | not stated | TL-TMA-0557 | LSSG-H4 | LSSG-H4 | DB8622S |
Frequently asked questions
Can I use a gas string trimmer as a lawn mower?
You can, but the results differ. The SENIX 22-Inch model uses string for trimming dense weeds and brush rather than cutting grass evenly. For standard lawn care, a dedicated mower with a steel deck is more efficient. The PowerSmart and BILT HARD options provide wider, cleaner cuts for maintained grass areas.
What is the difference between the SENIX 160cc and 170cc engines?
The 170cc engine offers more torque and power than the 160cc unit. The SENIX 170cc self-propelled models handle thick grass and slopes better. The 160cc version is lighter and suited for flat, dense brush clearing. Higher displacement generally means better performance in heavy vegetation.
Is self-propelled drive necessary for small yards?
It is not strictly necessary, but it reduces effort. The PowerSmart 18-Inch and BILT HARD 20-Inch models are push-only, requiring you to move the machine. Self-propelled SENIX and PowerSmart 22-Inch models move on their own. Push mowers are lighter and easier to store in tight spaces.
Do these mowers come with grass bags?
Some models include bagging systems while others do not. The SENIX 22-Inch 170cc self-propelled mower comes with an included bagging system for small to medium yards. Other alternatives, like the PowerSmart 18-Inch, focus on side discharge. Check the specific product attributes to confirm if a bag is included.
How wide is the cutting deck on these alternatives?
Widths range from 18 to 22 inches. The SENIX and PowerSmart 22-Inch models offer the widest cuts, reducing mowing time. The PowerSmart 18-Inch and BILT HARD 20-Inch models have narrower decks. A wider deck covers more ground per pass, while a narrower one fits tighter spaces.
Which model is best for uneven terrain?
The SENIX 22-Inch Gas Brush Hog is designed for uneven ground and dense vegetation. Its 14-inch rubber wheels provide stability on rough surfaces. For sloped lawns, the SENIX 170cc self-propelled models with rear-wheel traction offer better control. The PowerSmart 22-Inch also features rear-wheel drive for similar conditions.
What is the weight difference between push and self-propelled mowers?
Self-propelled models are significantly heavier due to the drive system. The SENIX 170cc self-propelled mowers weigh 72.8 pounds. The push-only PowerSmart 18-Inch weighs 58.4 pounds, and the BILT HARD 20-Inch weighs 51 pounds. Heavier mowers often feel more stable but are harder to lift or transport.
Are steel decks standard on these gas mowers?
Yes, durability is a key feature for these gas models. The SENIX 22-Inch self-propelled mower features a wide steel deck. The PowerSmart 22-Inch EasyDrive Pro also prioritizes a steel deck for heavy-duty use. Steel decks resist damage from debris better than plastic alternatives, making them suitable for rough yards.