12 Best 170cc Lawn Mowers, Compared
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Choosing the best 170cc lawn mowers requires comparing key specs like cutting width, drive type, and engine displacement. We analyzed 12 models to help you find the right tool for your yard. The SENIX 22-Inch 170cc Self-Propelled Gas Mower leads this list. It offers a wide 22-inch steel deck and reliable rear-wheel drive for medium lawns needing wide single-speed mowing. All picks are based strictly on the specifications published on the listings. This guide helps you decide which mower fits your terrain and maintenance needs.
Quick picks
The best fit for you
- You need a reliable mower for small to medium lawns SENIX 22-Inch 170cc Self-Propelled Gas Mower Its 22-inch steel deck and rear-wheel drive cover medium yards efficiently.
- You mow hilly or uneven medium-sized yards SENIX 22-Inch 170cc Self-Propelled Gas Mower The rear-wheel traction and six cutting heights handle challenging terrain well.
- You want the most compact model on the list AMERISUN 21-Inch 170cc Self-Propelled Gas Mower It measures 16.5 inches wide and weighs no listed pounds for easy storage.
- You need a complete gas yard care set SENIX 21-Inch 170cc Self-Propelled Mower 3-Tool Kit The 3-tool kit includes a mower, trimmer, and blower for full upkeep.
Our 12 picks
SENIX 22-Inch 170cc Self-Propelled Gas Mower
Best for: medium lawns needing wide single-speed mowing
- Voltage
- 170cc (what this guide is about)
- Power Source
- Gas, 170cc 4-cycle OHV
- Cutting Width
- 22 in
- Drive Type
- Self-propelled, rear-wheel drive
- Deck Material
- Steel
- Cutting Height
- 1.25-4 in, 6 positions
View on Amazon: SENIX 22-Inch 170cc Self-Propelled Gas Mower
This self-propelled gas mower runs on a 170cc 4-cycle OHV engine paired with a 22-inch steel cutting deck. You get single-speed rear-wheel drive and a 3-in-1 cutting system supporting mulching, side discharge, and rear bagging with a 19-gallon bagger. It suits you if you need wide cutting coverage, six-position height adjustment, and vertical storage for small to medium yards.
Pros
- 22-inch steel deck with 3-in-1 mulching, side discharge, and bagging
- Rear-wheel drive paired with 8-inch front and 11-inch rear wheels
- Single-lever height adjustment covering 6 positions from 1.25 to 4 inches
- Foldable handle supporting space-saving vertical storage
Cons
- Single-speed drive lacks variable speed settings
- Total weight is 72.8 pounds
Good fit if
- You want a wide 22-inch cutting deck for small to medium yards.
- You need rear-wheel drive and large rear wheels for uneven ground.
- You store your mower upright to save floor space.
Skip if
- You require adjustable or variable walking speeds.
- You want a walk-behind mower that weighs under 70 pounds.
Verdict: SENIX 22-Inch 170cc Self-Propelled Gas Mower provides reliable rear-wheel drive and a wide steel deck for small to medium lawns.
SENIX 22-Inch 170cc Self-Propelled Gas Mower
Best for: mowing hilly or uneven medium-sized yards
- Voltage
- 170cc (what this guide is about)
- Power Source
- Gas, 170cc 4-cycle
- Cutting Width
- 22 in
- Drive Type
- Self-propelled, rear-wheel drive
- Deck Material
- Steel
- Cutting Height
- 1.25-4 in, 6 positions
View on Amazon: SENIX 22-Inch 170cc Self-Propelled Gas Mower
This SENIX lawn mower combines a 170cc 4-cycle engine with a wide 22-inch steel deck and rear-wheel drive. Its 11-inch rear wheels help you steer across uneven terrain, while the six-position height adjustment spans 1.25 to 4 inches. You get 3-in-1 capabilities for bagging, mulching, and side discharge. It suits you if you need wide cutting coverage and reliable traction on slopes.
Pros
- Wide 22-inch hardened manganese steel blade
- Rear-wheel drive with 11-inch rear wheels for rough terrain
- 3-in-1 capability with mulching, bagging, and side discharge
- Six cutting height settings from 1.25 to 4 inches
Cons
- Heavier unit at 72.8 pounds
- Limited 0.8-liter fuel tank capacity
Good fit if
- You want a broad 22-inch cutting deck to clear grass efficiently.
- You need rear-wheel drive and large rear wheels for sloping or bumpy ground.
- You switch between mulching, bagging, and side discharging.
Skip if
- You want a lighter mower under 70 pounds for easier lifting and transport.
- You prefer a simpler manual push mower without a drive mechanism.
Verdict: SENIX 22-Inch 170cc RWD Self-Propelled Lawn Mower delivers dependable rear-wheel traction and a broad 22-inch steel deck for challenging yards. It provides versatile 3-in-1 grass management with six adjustable cutting heights.
PowerSmart 22-Inch Gas Self-Propelled Lawn Mower
Best for: wide-path mowing on uneven or sloped lawns
- Voltage
- 170cc (what this guide is about)
- Power Source
- 170cc 4-stroke OHV engine
- Cutting Width
- 22 in
- Drive Type
- self-propelled
- Deck Material
- steel
- Cutting Height
- 1.5-3.9 in, 6 positions
View on Amazon: PowerSmart 22-Inch Gas Self-Propelled Lawn Mower
This self-propelled gas mower runs on a 170cc 4-stroke OHV engine paired with rear-wheel drive for tackling uneven ground. Its 22-inch steel cutting deck trims wider paths in fewer passes, while the 3-in-1 system handles rear bagging with a 60-liter bag, mulching, or rear discharge. It gives you 6 cutting heights from 1.5 to 3.9 inches, making it a practical fit for larger yards needing broad cutting coverage.
Pros
- 22-inch steel deck covers wide mowing paths
- Self-propelled rear-wheel drive assists on slopes
- 3-in-1 setup includes mulch, rear discharge, and 60L bag
- 6 cutting height settings from 1.5 to 3.9 inches
Cons
- Recoil start with no electric start option listed
- Weighs 75 pounds
- Lacks a side discharge option
Good fit if
- You want a wide 22-inch steel deck to reduce mowing passes.
- You mow sloped yards where rear-wheel drive adds traction.
- You need multiple disposal options including a 60L collection bag.
Skip if
- You prefer a lighter machine than this 75-pound build.
- You want push-button electric start instead of a recoil pull cord.
Verdict: PowerSmart 22-Inch Self-Propelled Gas Mower combines a wide steel deck with rear-wheel drive for straightforward maintenance on uneven lawns. Its 170cc engine and 3-in-1 disposal system deliver dependable coverage across larger properties.
PowerSmart 21-Inch 170cc Self-Propelled Gas Mower
Best for: sloped yards needing versatile grass disposal
- Voltage
- 170cc (what this guide is about)
- Power Source
- 170cc OHV 4-stroke gas
- Cutting Width
- 21 in
- Drive Type
- self-propelled
- Deck Material
- steel
- Cutting Height
- 1.5 in to 3.9 in, 6 positions
View on Amazon: PowerSmart 21-Inch 170cc Self-Propelled Gas Mower
This PowerSmart self-propelled mower runs on a 170cc OHV 4-stroke gas engine paired with a 21-inch steel cutting deck. Its rear-wheel-drive system assists you across slopes and uneven ground, while the 3-in-1 setup lets you mulch, bag, or use side discharge. At 59 pounds with a folding handle, it suits you if you need a manageable gas walk-behind mower for standard yard maintenance.
Pros
- Rear-wheel-drive self-propelled system helps traverse uneven terrain
- 3-in-1 cutting system supports mulching, rear bagging, and side discharge
- 170cc OHV 4-stroke engine includes auto choke
- Durable 21-inch steel cutting deck
Cons
- Uses manual recoil start without an electric start feature
- Dual-lever height adjustment rather than a single-point lever
Good fit if
- You want rear-wheel drive to assist with uneven ground or slopes
- You need versatile grass disposal options including bagging, mulching, and side discharge
- You want a steel deck mower with a folding handle for storage
Skip if
- You prefer push-button electric start over manual recoil starting
- You want a single-point height adjustment lever rather than dual levers
Verdict: PowerSmart 21-Inch 170cc Self-Propelled Mower provides dependable rear-wheel drive and 3-in-1 clipping management inside a durable steel deck. It delivers practical cutting performance across varied terrain.
AMERISUN 21-Inch 170cc Self-Propelled Gas Mower
Best for: sloped medium lawns needing versatile 21-inch cutting
- Voltage
- 170cc (what this guide is about)
- Power Source
- 170cc 4-stroke OHV gas
- Cutting Width
- 21 in
- Drive Type
- self-propelled
- Deck Material
- steel
- Cutting Height
- 1.5-3.9 in, 6 positions
View on Amazon: AMERISUN 21-Inch 170cc Self-Propelled Gas Mower
This AMERISUN gas mower pairs a 170cc 4-stroke OHV engine with a self-propelled drive system. You get a 21-inch steel cutting deck that handles mulching, side discharge, and rear bagging into a 1.4-bushel catcher. Its 10-inch rear wheels help you steer across slopes and uneven ground, while six height settings adjust from 1.5 to 3.9 inches. It suits you if you maintain medium or large yards and want a versatile cut.
Pros
- 170cc 4-stroke OHV gas engine with self-propelled drive
- 21-inch steel cutting deck with 3-in-1 mulch, bag, and side discharge
- 6 cutting height positions ranging from 1.5 to 3.9 inches
- 10-inch rear wheels and 7-inch front wheels for sloped terrain
- Includes a 1.4-bushel collection bag and folding handle
Cons
- Narrower 21-inch deck compared to 22-inch models in this class
- 1.4-bushel grass bag requires frequent emptying on tall grass
- Requires assembly before operation
Good fit if
- You need self-propelled drive and 10-inch rear wheels for uneven ground or slopes.
- You want 3-in-1 versatility to mulch, bag, or side-discharge your clippings.
- You prefer a durable steel deck with six cutting heights up to 3.9 inches.
Skip if
- You prefer a wider 22-inch cutting deck for faster passes across large open areas.
- You want a grass collection capacity larger than 1.4 bushels.
Verdict: AMERISUN 21-Inch Self-Propelled Gas Mower delivers consistent 170cc power and easy high-wheel maneuvering across sloped lawns. Its 3-in-1 steel deck and six height options provide reliable cut management for medium to large yards.
PowerSmart 22" 170cc Self-Propelled Gas Mower
Best for: larger lawns needing wide cuts and traction
- Voltage
- 170cc (what this guide is about)
- Power Source
- 170cc 4-stroke OHV gas
- Cutting Width
- 22 in
- Drive Type
- self-propelled
- Deck Material
- steel
- Cutting Height
- 1.5-3.9 in
View on Amazon: PowerSmart 22" 170cc Self-Propelled Gas Mower
This PowerSmart mower features a 170cc 4-stroke OHV engine and a 22-inch steel deck. It uses rear-wheel drive for self-propelled traction on slopes. You can choose mulching, bagging, or rear discharge. The cutting height adjusts from 1.5 to 3.9 inches. It ships with a waterproof cover. This setup suits larger lawns where width and power matter.
Pros
- 22-inch cutting width for faster coverage
- 170cc 4-stroke OHV engine for thick grass
- Self-propelled rear-wheel drive reduces pushing effort
- Steel deck offers durability
- Includes waterproof 600D Oxford cover
Cons
- Ships in two separate packages
- No electric start or battery option
- Single height adjustment lever for all wheels
Good fit if
- You need a wider 22-inch cut path
- You mow on slopes requiring rear-wheel traction
- You want a durable steel deck
Skip if
- You prefer electric or battery power
- You want a single-package delivery
- You need independent rear wheel height adjustment
Verdict: PowerSmart 22-Inch 170cc Self-Propelled Gas Mower fits users with larger lawns who need a wide 22-inch cut and reliable rear-wheel traction on uneven terrain.
SENIX 21-Inch 170cc Self-Propelled Gas Mower
Best for: flat 1/3-acre yards with frequent obstacles
- Voltage
- 170cc (what this guide is about)
- Power Source
- Gas, 170cc 4-cycle OHV
- Cutting Width
- 21 in
- Drive Type
- Self-propelled
- Deck Material
- Steel
- Cutting Height
- 1.25-3.75 in, 6 positions
View on Amazon: SENIX 21-Inch 170cc Self-Propelled Gas Mower
This self-propelled gas mower runs on a 170cc 4-cycle OHV engine producing 3.8 HP and 6.5 ft-lb of torque. It pairs a 21-inch steel deck with a front-wheel-drive system designed for flat lots up to 1/3 acre. You get 3-in-1 capability with an included 1.7-bushel bag, alongside dual-lever cutting adjustment across six heights from 1.25 to 3.75 inches. It suits you if you prioritize easy pivoting around obstacles.
Pros
- 170cc 4-cycle OHV engine delivering 3.8 HP and 6.5 ft-lb of torque
- 3-in-1 steel deck supports mulching, side discharge, and rear bagging
- 6 cutting heights from 1.25 to 3.75 inches via dual levers
- 11-inch rear wheels paired with 8-inch front drive wheels
Cons
- Front-wheel drive layout is best suited for flat terrain rather than steep slopes
- Dual-lever height system requires adjusting both levers instead of a single point
Good fit if
- You have a flat yard up to 1/3 acre and need front-wheel self-propulsion for easy pivoting.
- You want 3-in-1 grass disposal options with an included 1.7-bushel rear bagger.
Skip if
- You mow steep hills where front-wheel drive loses traction.
- You prefer a single-lever height adjustment system.
Verdict: SENIX 21-Inch 170cc Self-Propelled Mower delivers dependable cutting power and simple maneuverability for flat 1/3-acre yards. Its 3-in-1 steel deck and large rear wheels offer balanced utility without unnecessary complexity.
SENIX 21-Inch 170cc Self-Propelled Mower 3-Tool Kit
Best for: complete gas yard care in one set
- Voltage
- 170cc (what this guide is about)
- Power Source
- 170cc 4-cycle gas
- Cutting Width
- 21 in
- Drive Type
- self-propelled
- Deck Material
- steel
- Cutting Height
- 6 positions
View on Amazon: SENIX 21-Inch 170cc Self-Propelled Mower 3-Tool Kit
This 3-piece yard care kit includes a 21-inch self-propelled lawn mower with a 170cc 4-cycle engine, a 26.5cc string trimmer, and a 26.5cc leaf blower. The mower features a steel deck, 6 cutting height positions, and a 3-in-1 system for mulching, side discharge, or bagging into a 1.7-bushel collector. It suits you if you need to equip an entire yard routine with matching gas tools.
Pros
- Includes 170cc mower, 26.5cc trimmer, and 26.5cc leaf blower
- Mower supports 3-in-1 mulching, side discharge, and rear bagging
- Steel deck with 6-position cutting height adjustment
- 4-cycle trimmer and blower engines eliminate fuel mixing
- Handheld leaf blower reaches up to 410 CFM and 125 MPH
Cons
- Arrives in three separate packages
- Requires maintaining three individual gas-powered tools
Good fit if
- You need a complete set of gas yard tools including a trimmer and blower.
- You want a self-propelled 21-inch steel deck mower with multiple discharge options.
Skip if
- You only need a lawn mower and already own cleanup equipment.
- You prefer cordless electric tools to avoid multiple gas engines.
Verdict: SENIX 21-Inch 170cc Self-Propelled 3-Tool Combo provides a full lawn maintenance setup centered on a capable 3-in-1 steel deck mower. It is a solid choice if you want to mow, trim, and clear debris using standard 4-cycle gasoline tools.
AMERISUN 21-Inch 170cc RWD Self-Propelled Gas Mower
Best for: sloped lawns needing rear-wheel drive traction
- Voltage
- 170cc (what this guide is about)
- Power Source
- Gas
- Cutting Width
- 21 in
- Drive Type
- Self-propelled
- Deck Material
- Reinforced steel
- Cutting Height
- 1.5-3.9 in, 6 positions
View on Amazon: AMERISUN 21-Inch 170cc RWD Self-Propelled Gas Mower
This gas mower features a 170cc 4-cycle engine and a 21-inch reinforced steel deck. Its rear-wheel-drive self-propelled system helps you navigate inclines and varied yard terrain with less effort. You get 3-in-1 cutting options and a single lever to choose from 6 cutting heights between 1.5 and 3.9 inches. It suits you if you need a mid-sized self-propelled gas machine that arrives fully assembled.
Pros
- 170cc 4-cycle OHV engine with auto choke
- Rear-wheel-drive self-propelled drive system
- Single-lever adjustment for 6 cutting heights from 1.5 to 3.9 inches
- Pre-assembled design with folding storage handle
Cons
- 66-pound total weight
- Minimum cutting height starts at 1.5 inches
Good fit if
- You mow sloped or uneven ground that benefits from rear-wheel drive.
- You want a machine that arrives fully assembled out of the box.
- You need 3-in-1 bagging, mulching, or side discharge options.
Skip if
- You need a grass cutting height lower than 1.5 inches.
- You prefer a wider 22-inch cut to reduce mowing passes.
Verdict: AMERISUN 21-Inch 170cc RWD Self-Propelled Gas Mower delivers dependable rear-wheel traction and a 21-inch steel deck for sloped yards. It provides ready-to-run setup with no assembly required beyond unfolding the handle.
PowerSmart 22-Inch 170cc Self-Propelled Gas Mower Kit
Best for: yards requiring mowing and brush trimming
- Voltage
- 170cc (what this guide is about)
- Power Source
- Gas
- Cutting Width
- 22 in
- Drive Type
- Self-propelled
- Mowing Function
- 3-in-1
- Application
- Lawn
View on Amazon: PowerSmart 22-Inch 170cc Self-Propelled Gas Mower Kit
This combo kit pairs a 22-inch self-propelled lawn mower with a 16-inch gas string trimmer. The mower runs on a 170cc 4-cycle engine with an auto choke and recoil start. Its single-speed rear-wheel drive operates at 3.6 km/h to help you tackle sloped terrain. With 3-in-1 bagging, mulching, and rear discharge capabilities, this package suits you if you need both a wide-deck walk-behind mower and an edging tool for large yards.
Pros
- 22-inch cutting deck covers wide paths in fewer passes
- Rear-wheel-drive system provides traction on slopes at 3.6 km/h
- 3-in-1 deck supports mulching, bagging, and rear discharge
- Includes a 25.4cc string trimmer with a 10-inch brush cutter blade
Cons
- Drive system has only one fixed speed setting
- Requires maintaining two different engines, including a 2-cycle trimmer
- Ships across two separate boxes that may arrive on different days
Good fit if
- You want both a 22-inch mower and a string trimmer in a single bundle.
- You have uneven or inclined turf where rear-wheel drive helps with traction.
- You want 3-in-1 disposal options for mulching, bagging, or rear discharging.
Skip if
- You want a variable-speed drive instead of a fixed 3.6 km/h pace.
- You prefer not to mix gas and oil for a 2-cycle trimmer engine.
Verdict: PowerSmart 22-Inch 170cc Mower and Trimmer Kit delivers a 3-in-1 cutting system and rear-wheel-drive traction alongside an extra 25.4cc trimming tool. It gives you broad cutting coverage and dedicated edging capability in one package.
SENIX 21-Inch 170cc FWD Lawn Mower
Best for: Medium lawns up to one-third acre
- Voltage
- 170cc (what this guide is about)
- Power Source
- Gas, 170cc 4-cycle
- Cutting Width
- 21 in
- Drive Type
- Self-propelled, front-wheel drive
- Deck Material
- Steel
- Cutting Height
- 1.25-3.75 in, 6 positions
This self-propelled gas mower runs on a 170cc four-cycle engine producing 3.8 horsepower and 6.5 foot-pounds of torque. You get a 21-inch steel cutting deck with front-wheel drive, suitable for yards up to one-third of an acre. It provides 3-in-1 capabilities for bagging, mulching, or side discharging clippings, and uses dual levers to set cutting heights across six positions. The setup suits you if you need straightforward mowing on uneven turf.
Pros
- 170cc 4-cycle engine delivering 3.8 HP and 6.5 ft-lb torque
- 3-in-1 capability with mulching, side discharge, and 16-gallon bag
- Front-wheel drive with 8-inch front and 11-inch rear wheels
- Dual-lever height adjustment from 1.25 to 3.75 inches across 6 positions
Cons
- Uses dual levers for height adjustment instead of a single-point lever
- Front-wheel drive provides less uphill traction than rear-wheel drive systems
Good fit if
- You maintain a yard up to one-third of an acre.
- You want front-wheel drive maneuverability around obstacles.
- You switch frequently between bagging, mulching, and side discharge.
Skip if
- You prefer a single-point height adjustment lever.
- You need rear-wheel drive for steep hill climbing.
Verdict: SENIX 21-Inch 170cc FWD Lawn Mower delivers dependable cutting power with flexible 3-in-1 disposal options for properties up to one-third of an acre. Its front-wheel drive system makes navigating flat or uneven terrain manageable without excess effort.
SENIX 21-Inch 170cc Self-Propelled Mower Combo
Best for: complete yard maintenance with bundled attachments
- Voltage
- 170cc (what this guide is about)
- Power Source
- Gas, 170cc 4-cycle
- Cutting Width
- 21 in
- Drive Type
- Self-propelled
- Deck Material
- Steel
- Cutting Height
- 6 positions
View on Amazon: SENIX 21-Inch 170cc Self-Propelled Mower Combo
This kit pairs a self-propelled gas mower with a 60V battery power head and corded yard tools. You get a 21-inch steel deck, a 170cc 4-cycle engine, and 6-position height adjustment. It also includes string trimmer and edger attachments, plus a 6-amp leaf blower. This setup suits you if you need a complete yard maintenance system in one package.
Pros
- 170cc 4-cycle engine with self-propelled drive
- 3-in-1 steel deck supports mulching, side discharge, and rear bagging
- Multi-head system includes 16-inch string trimmer and 8-inch edger
- Includes 6-amp leaf blower providing 260 CFM and 155 MPH
Cons
- Arrives in three separate packages
- Includes only one 3.0 Ah battery for multiple cordless tools
Good fit if
- You want a 21-inch self-propelled mower bundled with trimming and edging attachments.
- You need a versatile 3-in-1 deck with an included 1.7-bushel bagger.
Skip if
- You want only a standalone lawn mower without secondary yard tools.
- You prefer all equipment to arrive in a single delivery box.
Verdict: SENIX 21-Inch 170cc Self-Propelled Mower Combo combines a gas-powered 21-inch mower with string trimmer, edger, and blower attachments. It gives you a multi-tool setup for complete yard upkeep from a single package.
Specifications side by side
| Spec | SENIX 22-Inch 170cc Self-Propelled Gas Mower | SENIX 22-Inch 170cc Self-Propelled Gas Mower | PowerSmart 22-Inch Gas Self-Propelled Lawn Mower | PowerSmart 21-Inch 170cc Self-Propelled Gas Mower | AMERISUN 21-Inch 170cc Self-Propelled Gas Mower | PowerSmart 22" 170cc Self-Propelled Gas Mower | SENIX 21-Inch 170cc Self-Propelled Gas Mower | SENIX 21-Inch 170cc Self-Propelled Mower 3-Tool Kit | AMERISUN 21-Inch 170cc RWD Self-Propelled Gas Mower | PowerSmart 22-Inch 170cc Self-Propelled Gas Mower Kit | SENIX 21-Inch 170cc FWD Lawn Mower | SENIX 21-Inch 170cc Self-Propelled Mower Combo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power Source | Gas, 170cc 4-cycle OHV | Gas, 170cc 4-cycle | 170cc 4-stroke OHV engine | 170cc OHV 4-stroke gas | 170cc 4-stroke OHV gas | 170cc 4-stroke OHV gas | Gas, 170cc 4-cycle OHV | 170cc 4-cycle gas | Gas | Gas | Gas, 170cc 4-cycle | Gas, 170cc 4-cycle |
| Cutting Width | 22 in | 22 in | 22 in | 21 in | 21 in | 22 in | 21 in | 21 in | 21 in | 22 in | 21 in | 21 in |
| Drive Type | Self-propelled, rear-wheel drive | Self-propelled, rear-wheel drive | self-propelled | self-propelled | self-propelled | self-propelled | Self-propelled | self-propelled | Self-propelled | Self-propelled | Self-propelled, front-wheel drive | Self-propelled |
| Deck Material | Steel | Steel | steel | steel | steel | steel | Steel | steel | Reinforced steel | not specified | Steel | Steel |
| Cutting Height | 1.25-4 in, 6 positions | 1.25-4 in, 6 positions | 1.5-3.9 in, 6 positions | 1.5 in to 3.9 in, 6 positions | 1.5-3.9 in, 6 positions | 1.5-3.9 in | 1.25-3.75 in, 6 positions | 6 positions | 1.5-3.9 in, 6 positions | not specified | 1.25-3.75 in, 6 positions | 6 positions |
| Mowing Function | 3-in-1: mulch, side discharge, bag | 3-in-1 | 3-in-1 mulch, bag, rear discharge | 3-in-1 mulch, side discharge, rear bag | 3-in-1 | 3-in-1 (mulch, bag, rear discharge) | 3-in-1 | 3-in-1 (mulch, side discharge, bag) | 3-in-1 | 3-in-1 | 3-in-1 mulch, side discharge, rear bag | 3-in-1: mulch, side discharge, bag |
| Voltage | 170cc | 170cc | 170cc | 170cc | 170cc | 170cc | 170cc | 170cc | 170cc | 170cc | 170cc | 170cc |
| Application | Lawn | Lawn | Lawn | Lawn | Lawn | Lawn | Lawn | Lawn | Lawn | Lawn | Lawn | Lawn |
| Size | 22INCH-170CC | not specified | 22 in. - 170 cc - Self Propelled | 21 Inch-170cc | 21 Inch | not specified | 21 Inch-170cc-6 Position | 21 inch Self-Propelled 3-Piece Set | not specified | 22" Red Mower & Trimmer | 170cc | not specified |
| Dimensions | 37.5 × 23.8 × 15.9 inches | 32.8 × 24.1 × 15.9 inches | 59.8 × 22.8 × 38.4 inches | 56.5 × 22 × 42.5 inches | 32.9 × 16.5 × 22.6 inches | 56.5 × 22 × 42.5 inches | 61 × 22.8 × 41.5 inches | 61 × 22.8 × 41.5 inches | 59.8 × 26.7 × 38.4 inches | 60 × 23 × 39 inches | 61 × 22.8 × 41.5 inches | 61 × 22.8 × 41.5 inches |
| Weight | 72.8 pounds | 72.8 pounds | 75 pounds | 59 pounds | not specified | not specified | 61.7 pounds | 61.7 pounds | 66 pounds | not specified | 61.7 pounds | 61.7 pounds |
| Color | Blue | Black | Black | Black | Black+Red | Black | Blue | Blue | Black | Red | Gray | Blue |
| Model | LSSG-H4 | LSSG-H4 | DB8622S | DB8621S | AV8621S1 | DB8721P+302120094 | A025054-A | 3-GAS TOOLS | AV8621S1 | V8622S1+PS4532 | M10 | M10-S606-BLE06 |
Is 170cc displacement worth it for your yard?
The 170cc engine provides the power needed for self-propelled rear-wheel drive systems. This displacement helps the mower maintain traction on slopes and uneven terrain, as seen in the SENIX and PowerSmart models. It also supports the 22-inch steel deck for efficient coverage on medium lawns. You get consistent cutting performance without stalling in thick grass. This setup is ideal for yards up to one-third of an acre where you need dependable power and wide-path mowing.
Worth it if
- You mow hilly or uneven medium-sized yards
- You want a wide 22-inch cut for faster coverage
- You need rear-wheel traction for slopes
Skip it if
- You have a small, flat lawn under 1/4 acre
- You prefer electric tools for quiet operation
- You only need basic manual push mowing
If you need outdoor coverage for your machine, compare dimensions of the best storage sheds for lawn mowers.
How We Selected 170cc Mowers
We found these 12 models by scanning Amazon listings for the 170cc engine specification. This displacement indicates a mid-range power level suitable for medium to large lawns. We included only one variant per product family to keep the list concise. All details come directly from the published specifications on each listing. We did not handle these units ourselves.
The ranking prioritizes products currently in stock. Next, we ordered them by their overall rating, weighted by the total number of ratings. Finally, we considered how many of our core criteria each spec sheet met. This approach ensures you see the most relevant and highly rated 170cc self-propelled gas mowers first.
Key Specs for Choosing 170cc Mowers
-
Check Drive Type for Terrain
You should match the drive type to your yard's slope. Rear-wheel drive provides better traction on hills, which is why the SENIX and PowerSmart models feature this setup. Front-wheel drive, like the SENIX FWD option, offers easier maneuverability on flat ground. If your lawn has significant elevation changes, prioritize rear-wheel drive to maintain control and prevent slipping on inclines.
-
Compare Cutting Width Options
The cutting width determines how many passes you need to complete the job. Most models here offer 21 or 22-inch steel decks. A 22-inch deck, found on the SENIX and PowerSmart units, covers more ground per pass, which is efficient for medium to large lawns. A 21-inch deck, like the AMERISUN, may be easier to maneuver in tighter spaces or around obstacles in smaller yards.
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Verify Power Source Requirements
All listed mowers use gasoline, meaning you must store fuel and manage oil changes. This setup provides unlimited runtime but requires regular maintenance. You need to check the fuel tank capacity and oil type before purchase. Unlike battery models, gas mowers deliver consistent power for heavy-duty tasks but require more upkeep, including spark plug checks and carburetor care throughout the season.
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Assess Weight and Maneuverability
Weight affects how easy the mower is to push and store. The SENIX 22-Inch model weighs 72.8 pounds, while the PowerSmart 21-Inch version is lighter at 59 pounds. Heavier mowers often feel more stable on rough terrain, but lighter units are easier to lift into a garage. Consider your storage space and physical strength when comparing the weights of the SENIX and PowerSmart options.
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Look for 3-in-1 Disposal
A 3-in-1 mowing function allows you to mulch, bag, or side-discharge clippings. This feature is common among the PowerSmart and AMERISUN models. Mulching returns nutrients to the soil, while bagging keeps your lawn tidy. Side-discharging is useful for clearing long grass quickly. Verify that the model you choose includes this versatile system to handle different grass conditions and cleanup preferences effectively.
Frequently asked questions
Which 170cc mower is best for medium lawns?
The SENIX 22-Inch 170cc Self-Propelled Gas Mower is the top pick for medium-sized yards. It features a wide 22-inch steel deck and rear-wheel drive for reliable traction. Weighing 72.8 pounds, it offers a stable build for consistent cutting performance across small to medium grass areas.
How does front-wheel drive compare to rear-wheel drive?
Front-wheel drive offers easier maneuverability on flat terrain, while rear-wheel drive provides better traction on slopes. The SENIX 21-Inch 170cc FWD model is ideal for flat yards up to one-third acre. Conversely, the SENIX and PowerSmart rear-wheel drive models handle hilly or uneven ground more effectively.
What is the lightest 170cc self-propelled mower on this list?
The PowerSmart 21-Inch 170cc Self-Propelled Gas Mower is the lightest option at 59 pounds. Its compact size and rear-wheel drive make it practical for varied terrain. This lighter weight aids in maneuverability without sacrificing the cutting power needed for effective grass management.
Do these mowers include grass disposal options?
Most models feature a 3-in-1 steel deck for mulching, bagging, and side-discharging. The PowerSmart 22-Inch and AMERISUN 21-Inch models explicitly offer this versatile disposal system. This allows you to manage clippings according to your lawn care preferences, whether you prefer to recycle nutrients or collect debris.
Are there bundle kits available for 170cc mowers?
Yes, the SENIX 21-Inch 170cc Self-Propelled Mower 3-Tool Kit includes a string trimmer, edger, and blower. The PowerSmart 22-Inch 170cc Mower and Trimmer Kit adds a 25.4cc trimming tool. These bundles provide complete yard maintenance setups, allowing you to mow, trim, and clear debris with standard gasoline tools.
What cutting height options do these mowers have?
Many models offer six adjustable cutting heights to accommodate different grass types and seasonal needs. The SENIX 22-Inch RWD model and AMERISUN 21-Inch model both provide six height options. This flexibility ensures you can maintain your lawn at the optimal level for health and appearance throughout the growing season.
Which mower is best for sloped yards?
The AMERISUN 21-Inch 170cc RWD Self-Propelled Gas Mower is designed for sloped lawns. Its rear-wheel drive delivers dependable traction on inclines. The 21-inch steel deck and high-wheel maneuverability help you maintain control and safety while mowing challenging terrain that might be difficult for front-wheel drive models.
How wide is the cutting deck on these mowers?
The cutting decks range from 21 to 22 inches. The SENIX 22-Inch and PowerSmart 22-Inch models offer a wider cut, reducing the number of passes needed for larger lawns. The 21-inch models, like the AMERISUN and PowerSmart 21-Inch, provide a slightly narrower path for better maneuverability in tighter spaces.