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The SENIX 21-Inch 170cc Self-Propelled Gas Mower offers a reliable 170cc OHV engine and a 21-inch steel deck for consistent cuts. It features a 3-in-1 system for mulching, bagging, and side discharge, along with six height positions. If you are researching senix 21 inch 170cc self propelled gas alternatives, you may want different specs. Some buyers prefer a wider 22-inch deck for faster coverage. Others might need more torque from a 201cc engine or the quiet operation of a cordless model. You might also look for a lighter weight or a different drive type.
This list includes 6 options that share key specifications with the original SENIX model. Each alternative overlaps in cutting width, power type, or self-propelled functionality. We selected these products because their published specs address common needs that vary from the base 170cc configuration. Whether you need extended runtime with a 60V battery or a budget-friendly gas option, the data shows clear differences in engine displacement, weight, and deck size. These variations help you choose the mower that matches your specific yard size and terrain requirements without relying on subjective reviews.
How these alternatives compare
SENIX 21-Inch Self-Propelled Gas Mower
This model shares the same 170cc engine and 21-inch cutting width as the SENIX 170cc. It offers identical 3-in-1 functionality for mulching, bagging, and side discharge. The weight and dimensions remain consistent at 61.7 pounds. You get the same six height positions ranging from 1.25 to 3.75 inches. The main difference is the model number and minor cosmetic variations. It serves as a direct substitute if you prefer a different part number or slight design tweak. The performance profile stays identical, making it a safe swap for those who want the same capabilities without changing their workflow. It fits small yards up to 1/3 acre just like the original.
BILT HARD 21-Inch 201cc Self-Propelled Gas Mower
The BILT HARD mower steps up to a 201cc engine, providing higher torque than the SENIX 170cc. It weighs 89.2 pounds, making it significantly heavier than the 61.7-pound SENIX. You gain more power for thick grass but lose lightweight maneuverability. It retains the 21-inch steel deck and 3-in-1 cutting functions. The self-propelled drive helps manage the extra weight on flat to gently sloping lawns. If you prioritize engine durability and cutting power over ease of lifting, this is a better choice. It sacrifices portability for raw performance. The larger engine handles tougher conditions better, though the increased mass requires more effort to pivot around obstacles compared to the lighter SENIX.
AMERISUN 21" Self-Propelled Gas Mower
The AMERISUN offers a 170cc gas engine and 21-inch cutting width, matching the SENIX power and deck size. It provides 3-in-1 functionality for mulching, bagging, and side discharge. However, it lacks a specific height adjustment count in the data, so you may have fewer precision settings than the SENIX six-position system. It weighs less at 32.9 pounds in its folded state, offering easier storage. The drive type is self-propelled, ensuring similar ease of use. You trade some height versatility for a more compact footprint. It is ideal for small yards where storage space is limited. The core mowing experience remains similar, but the reduced adjustability might matter if you need exact cut heights for specific grass types.
SENIX 22-Inch 170cc Self-Propelled Gas Mower
This SENIX model increases the cutting width to 22 inches, covering more ground per pass than the 21-inch original. It keeps the 170cc engine and self-propelled drive. The weight rises to 72.8 pounds, making it heavier and harder to lift than the 61.7-pound SENIX. You gain efficiency on larger lawns but lose some agility in tight spaces. It still supports mulching, bagging, and side discharge. The wider deck reduces mowing time but requires more precise steering. If you have a medium-sized lawn and want to finish faster, this width is advantageous. You accept the extra weight and bulk for the benefit of fewer passes. It is best for users who prioritize speed over lightweight handling.
NovorikX 21-Inch 60V Self-Propelled Mower
The NovorikX switches from gas to a 60V cordless system with a brushless motor. It retains the 21-inch cutting width and self-propelled drive. You gain zero emissions and quieter operation but lose the unlimited runtime of gas. It includes dual 5.0 Ah batteries for extended use. The weight is 86 pounds, heavier than the SENIX gas model. It offers 3-in-1 functions for mulching, bagging, and side discharge. You trade fuel maintenance for battery charging. This option suits homeowners who want to avoid gas smells and regular engine upkeep. It is ideal for yards up to 1 acre where runtime is sufficient. The electric drive provides smooth power without the vibration of a 170cc engine.
Worx 21-Inch 40V Cordless Push Lawn Mower
The WORX uses a 40V cordless system with a brushless motor, differing from the SENIX gas engine. It features a 21-inch cutting width and 3-in-1 functions. It weighs 55.6 pounds, making it lighter and easier to handle than the 61.7-pound SENIX. You gain quiet operation and smart efficiency but lose the raw power of a 170cc gas engine. The 5.0 Ah battery provides runtime suitable for half-acre lawns. It lacks self-propulsion in some configurations, but this model is self-propelled. You trade gas convenience for battery management. This mower is best for users who value low noise and easy storage. It offers a cleaner mowing experience without exhaust fumes, ideal for smaller residential yards.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | SENIX 21-Inch 170cc Self-Propelled Gas Mower Best overall | flat yards up to 1/3 acre | |
| 2 | SENIX 21-Inch Self-Propelled Gas Mower Also great | small lawns up to 1/3 acre with mulching needs | |
| 3 | BILT HARD 21-Inch 201cc Self-Propelled Gas Mower Best premium | Users needing high torque and durable steel construction | |
| 4 | AMERISUN 21" Self-Propelled Gas Mower Best budget | Small yard maintenance with gas power | |
| 5 | SENIX 22-Inch 170cc Self-Propelled Gas Mower Best 22-inch | wide cutting width on small to medium lawns | |
| 6 | NovorikX 21-Inch 60V Self-Propelled Mower Best 60v | large yards needing extended runtime | |
| 7 | Worx 21-Inch 40V Cordless Push Lawn Mower Best 40v | Small lawns needing quiet, smart mowing |
SENIX 21-Inch 170cc Self-Propelled Gas Mower
Best for: flat yards up to 1/3 acre
- 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 170cc Self-Propelled Gas mower features a 170 cc 4-cycle OHV engine delivering 3.8 HP. It offers a 21-inch cutting width and six height adjustments from 1.25 to 3.75 inches. The 3-in-1 deck supports mulching, bagging, and side discharge. Weighing 61.7 pounds, it handles up to 1/3-acre yards with ease. Front-wheel drive helps you guide the mower around obstacles on relatively flat terrain.
- 170 cc 4-cycle OHV gas engine produces 3.8 HP
- 21-inch cutting width covers 1/3-acre yards efficiently
- Six height positions range from 1.25 to 3.75 inches
- 3-in-1 deck supports mulching, bagging, and side discharge
- 11-inch rear wheels provide stability on uneven surfaces
- 170 cc engine displacement is lower than the 201 cc options available in other models
- Front-wheel drive offers less traction on steep slopes than rear-wheel drive systems
- 61.7 pounds weight is heavier than many cordless alternatives
- You need a reliable gas mower for yards up to 1/3 acre
- You want six cutting height positions for precise grass control
- You prefer front-wheel drive for easier maneuvering around obstacles
- You require a rear-wheel drive system for steep hills
- You want a battery-powered mower for zero emissions
- You need a cutting width larger than 21 inches
Verdict: SENIX 21-Inch 170cc Self-Propelled Gas is a solid choice for homeowners with flat to gently sloping yards up to 1/3 acre who value consistent mulching and bagging capabilities.
SENIX 21-Inch Self-Propelled Gas Mower
Best for: small lawns up to 1/3 acre with mulching needs
- 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 gas mower uses a 170cc 4-cycle OHV engine producing 3.8 HP. It features front-wheel drive and a 6-position height adjustment from 1.25 to 3.75 inches. The 3-in-1 steel deck handles mulching, side discharge, and bagging. This model suits users with small to medium lawns up to 1/3 acre who need reliable self-propelled performance.
- 170cc 4-cycle OHV engine delivers 3.8 HP and 6.5 ft-lb of torque
- 6-position dual-lever height adjustment ranging from 1.25 to 3.75 inches
- 3-in-1 steel deck supports mulching, side discharge, and rear bagging
- Front-wheel drive with 8-inch front and 11-inch rear wheels
- 170cc engine displacement is lower than the 201cc engine on the BILT HARD alternative
- 16-gallon bag capacity is smaller than the 1/2 acre usage rating of the Worx alternative
- Front-wheel drive offers less traction on slopes than rear-wheel drive systems
- You have a lawn up to 1/3 acre and prefer gas power
- You need versatile mowing options including mulching and bagging
- You want easy height adjustments with a dual-lever system
- You require rear-wheel drive for steep or uneven terrain
- You need a larger cutting width than 21 inches
- You prefer cordless electric power over gasoline engines
Verdict: SENIX 21-Inch 170cc Self-Propelled Gas Mower fits homeowners with small yards who value mulching flexibility and easy height adjustments over raw power or all-terrain traction.
BILT HARD 21-Inch 201cc Self-Propelled Gas Mower
Best for: Users needing high torque and durable steel construction
- 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
The BILT HARD 21-inch gas mower features a 201cc OHV engine with 9.0 ft·lb of torque. It offers 3-in-1 mowing versatility and an 8-position height adjustment range from 1.2 to 3.75 inches. The self-propelled drive provides a fixed walking speed. This 89.2-pound unit suits users needing consistent performance and durable steel deck construction for standard lawn maintenance.
- 201cc 4-cycle OHV engine delivers 9.0 ft·lb of torque
- 8-position cutting height adjustment from 1.2" to 3.75"
- 3-in-1 mulching, bagging, and side discharge capabilities
- Single-lever synchronized height adjustment across all four wheels
- Fixed self-propelled walking speed limits terrain adaptability
- 89.2-pound weight is heavier than lighter alternatives
- 8 height settings are fewer than some competitors
- You need a robust 201cc engine for consistent power
- You want 3-in-1 versatility for mulching or bagging
- You prefer a durable steel deck for longevity
- You require variable speed control for hilly terrain
- You prefer a lighter mower under 80 pounds
- You need more than 8 cutting height positions
Verdict: BILT HARD 21" 201cc Gas Mower fits users who prioritize engine torque and deck durability over variable speed control or lightweight portability. It is a solid choice for flat to gently sloping lawns where consistent forward movement is sufficient.
AMERISUN 21" Self-Propelled Gas Mower
Best for: Small yard maintenance with gas power
- 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
The AMERISUN 21-inch gas mower features a 170cc OHV engine and self-propelled drive. It offers 6 cutting heights from 1.5 to 3.9 inches and 3-in-1 functions. The 1.4-bushel bagger reduces trips. This model suits small to medium yards. You get durable steel deck construction and foldable handle storage. It is a practical option for basic lawn maintenance tasks.
- 170cc 4-cycle OHV engine with auto choke
- Self-propelled drive for reduced effort
- 6-position height adjustment (1.5-3.9 inches)
- 3-in-1 mulch, bag, and side discharge
- 1.4-bushel rear grass catcher
- 170cc engine is less powerful than the 201cc BILT HARD alternative
- 21-inch cutting width is narrower than the 22-inch SENIX option
- 1.4-bushel bag capacity is smaller than typical larger models
- You need a self-propelled mower for flat to gently sloping terrain
- You want mulching and bagging capabilities in one unit
- You prefer a gas-powered tool with auto-choke starting
- You require a wider 22-inch or larger cutting deck
- You need more than 170cc of engine power
- You prefer a cordless electric mower over gas
Verdict: AMERISUN 21" Self-Propelled Gas Mower fits users who need reliable gas power with self-propelled ease for small yards. It offers essential 3-in-1 functionality and adjustable height settings for consistent cuts.
SENIX 22-Inch 170cc Self-Propelled Gas Mower
Best for: wide cutting width on small to medium lawns
- Cutting Width
- 22-inch
- Drive Type
- Self-propelled
- Mowing Functions
- 3-in-1 (mulching, discharge, bagging)
- Motor Type
- 170 cc 4-cycle OHV
- Height Adjustments
- 6-position (1.25" to 4")
- Power Type
- Gas
This SENIX mower features a 22-inch cutting deck, the widest in this guide. It uses a 170cc 4-cycle OHV engine with rear-wheel drive. You get 6 height settings from 1.25 to 4 inches. The 3-in-1 system handles mulching, side discharge, and bagging. It includes a 19-gallon bagger and weighs 72.8 pounds. This model suits you if you need a wider cut on small to medium lawns.
- 22-inch cutting deck for wider coverage
- 170cc 4-cycle OHV engine for consistent power
- 6-position height adjustment from 1.25 to 4 inches
- Includes 19-gallon bagger for rear discharge
- Foldable handle for vertical storage
- 72.8 pounds is heavier than the 21-inch competitors
- 170cc engine displacement is lower than the 201cc BILT HARD option
- Single-speed drive limits terrain versatility
- You want a 22-inch cutting width for faster mowing
- You need a self-propelled mower for small to medium yards
- You prefer rear bagging with an included 19-gallon bag
- You require a 201cc engine for maximum power
- You prefer a lighter mower under 70 pounds
- You need variable speed control for hilly terrain
Verdict: SENIX 22-Inch 170cc Self-Propelled Gas Mower offers the widest deck in this list. It fits buyers who prioritize cutting width over engine displacement or variable speed control.
NovorikX 21-Inch 60V Self-Propelled Mower
Best for: large yards needing extended runtime
- Cutting Width
- 21 in
- Drive Type
- Self-propelled
- Voltage
- 60 V
- Battery Capacity
- 2 x 5.0 Ah
- Mowing Functions
- 3-in-1 (mulch, bag, side discharge)
- Motor Type
- 1200W brushless
The NovorikX 60V mower uses a 1200W brushless motor and two 5.0 Ah batteries to cut a 21-inch path. Its self-propelled drive offers variable speeds from 0.9 to 3.6 MPH. This setup handles lawns up to 1 acre efficiently. It provides three mowing functions for versatile yard care. You get extended runtime and backup power for larger properties.
- 60V brushless motor delivers strong cutting power
- Includes two 5.0 Ah batteries for extended runtime
- Variable self-propelled speed from 0.9 to 3.6 MPH
- 21-inch steel deck covers more ground per pass
- Offers 3-in-1 mulching, bagging, and side discharge
- Heavier at 86 pounds compared to gas alternatives
- Slower maximum drive speed than typical gas models
- Lower voltage platform than some 80V competitors
- You need backup battery power for large yards
- You want variable speed control for slopes
- You prefer quiet operation over gas engines
- You prefer the lighter weight of gas mowers
- You need faster travel speeds for quick jobs
- You want a single-battery lightweight design
Verdict: NovorikX 60V 21-Inch Cordless Mower suits homeowners with yards up to 1 acre who value extended runtime and backup battery power. The dual-battery system ensures you finish the job without interruption.
Worx 21-Inch 40V Cordless Push Lawn Mower
Best for: Small lawns needing quiet, smart mowing
- Cutting Width
- 21"
- Drive Type
- Push
- Voltage
- 40V
- Battery Capacity
- 5.0Ah
- Mowing Functions
- 3-in-1
- Motor Type
- Brushless
The WORX WG752 is a 40V cordless mower with a 21-inch cutting width. It uses two 5.0Ah batteries for up to half-acre lawns. The brushless motor includes IntelliCut technology to adjust speed based on grass density. You get three mowing functions and seven height settings. This model suits users who want efficient, quiet mowing with expandable battery compatibility.
- Brushless motor delivers 40% more power than previous generations
- IntelliCut sensors automatically adjust cutting speed for efficiency
- Aerodeck technology prevents clogs and improves bag collection
- Compatible with 140+ WORX PowerShare tools
- Push drive requires more effort than self-propelled models
- 55.6-pound weight is heavier than many gas counterparts
- Limited to 1/2 acre application size
- You want a quiet, zero-emission mower for small yards
- You already own WORX PowerShare batteries
- You prefer mulching or bagging over side discharge
- You need self-propelled drive for steep slopes
- You have a lawn larger than half an acre
- You prefer gas engines for unlimited runtime
Verdict: WORX WG752 40V 21-Inch Cordless Mower fits homeowners with half-acre lawns who value quiet operation and battery flexibility. It trades raw power for smart efficiency and easy storage.
Specifications side by side
| Spec | SENIX 21-Inch 170cc Self-Propelled Gas Mower | SENIX 21-Inch Self-Propelled Gas Mower | BILT HARD 21-Inch 201cc Self-Propelled Gas Mower | AMERISUN 21" Self-Propelled Gas Mower | SENIX 22-Inch 170cc Self-Propelled Gas Mower | NovorikX 21-Inch 60V Self-Propelled Mower | Worx 21-Inch 40V Cordless Push Lawn Mower |
|---|---|---|---|---|---|---|---|
| Cutting Width | 21 in | 21 in | 21" | 21 in | 22-inch | 21 in | 21" |
| Drive Type | Self-propelled, FWD | Self-propelled, front-wheel drive | Self-Propelled | Self-propelled | Self-propelled | Self-propelled | Push |
| Voltage | – | – | – | – | – | 60 V | 40V |
| Battery Capacity | – | – | – | – | – | 2 x 5.0 Ah | 5.0Ah |
| Mowing Functions | 3-in-1 (mulch, bag, side discharge) | 3-in-1 | 3-in-1 | 3-in-1 (mulch, bag, side discharge) | 3-in-1 (mulching, discharge, bagging) | 3-in-1 (mulch, bag, side discharge) | 3-in-1 |
| Motor Type | 170 cc 4-cycle OHV gas | 170cc 4-cycle OHV | 201cc 4-cycle OHV | 170cc 4-cycle OHV | 170 cc 4-cycle OHV | 1200W brushless | Brushless |
| Height Adjustments | 6 positions, 1.25-3.75 in | 6 positions, 1.25 to 3.75 inches | 8-position (1.2" to 3.75") | 6 positions, 1.5-3.9 in | 6-position (1.25" to 4") | – | 7-position, 1.5" – 4" |
| Power Type | Gas | Gas | Gas | Gas | Gas | Cordless | Cordless |
| Engine Displacement | 170cc | 170cc | – | 170cc | 170cc | – | – |
| Application | – | – | – | – | – | – | 1/2 Acre |
| Dimensions | 61 × 22.8 × 41.5 inches | 61 × 22.8 × 41.5 inches | – | 32.9 × 16.5 × 22.6 inches | 37.5 × 23.8 × 15.9 inches | 57.1 × 47.2 × 25.6 inches | 60 × 22 × 40.9 inches |
| Weight | 61.7 pounds | 61.7 pounds | 89.2 pounds | – | 72.8 pounds | 86 pounds | 55.6 pounds |
| Size | 21 Inch-170cc-6 Position | 21-Inch Gas-Powered | 21 inch self propelled | 3IN1 Self-Propelled Gas Lawn Mower | 22INCH-170CC | – | – |
| Color | Blue | Blue | – | Black | Blue | 2*5.0ah | Black and Orange |
| Model | A025054-A | LSSG-M10-III | TMA-0562-N3-0513 | AV8621S1 | LSSG-H4 | BLM160H-21SP | WG752 |
You can also compare powersmart 21 inch 170cc self propelled gas lawn mower alternatives with similar engine displacement.
Frequently asked questions
Which alternative offers the most power for tough grass?
The BILT HARD 21-Inch model provides the highest engine displacement at 201cc. This extra torque helps it handle dense or tall grass more effectively than the 170cc SENIX options. It features a durable steel deck and weighs 89.2 pounds, offering robust performance for flat to gently sloping lawns.
Can I find a lighter option for easy storage?
The WORX 21-Inch 40V Cordless Mower is the lightest choice at 55.6 pounds. Its compact design makes it easy to store in tight spaces. This brushless motor model is ideal for small lawns up to half an acre, trading raw gas power for quiet operation and simple maneuverability.
Is there a self-propelled mower with a wider cutting deck?
Yes, the SENIX 22-Inch 170cc Self-Propelled Gas Mower offers the widest deck in this list. At 22 inches, it covers more ground per pass than the standard 21-inch models. It is best for buyers who prioritize cutting width over engine displacement on small to medium lawns.
Which model is best for large yards needing extended runtime?
The NovorikX 21-Inch 60V Self-Propelled Mower is designed for larger yards up to one acre. It uses a dual-battery system with two 5.0 Ah packs to ensure extended runtime. This cordless option allows you to finish the job without interruption, making it a solid choice for bigger properties.
Do these alternatives support side discharge?
Most listed models support side discharge along with mulching and bagging. The SENIX 21-Inch 170cc, BILT HARD 201cc, and NovorikX 60V all feature 3-in-1 functionality. The AMERISUN 21-Inch model also includes side discharge, giving you flexible options for managing clippings on your lawn.
Which mower is suitable for flat yards up to one-third acre?
The top-ranked SENIX 21-Inch 170cc model is a solid choice for flat to gently sloping yards up to one-third acre. It offers consistent mulching and bagging capabilities. The second-ranked SENIX 21-Inch Self-Propelled Gas Mower also fits this category, providing mulching flexibility and easy height adjustments for small lawns.
Are there brushless motor options in this list?
Yes, both the NovorikX 60V and WORX 40V models feature brushless motors. These motors offer greater efficiency and longevity compared to brushed alternatives. The NovorikX provides higher voltage for larger yards, while the WORX offers a lighter, quieter experience for smaller spaces.
