Home/Products/PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel

PowerSmart

PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel

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7.2/10
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Highlights

  • POWERED BY A RELIABLE OHV ENGINE: Equipped with a powerful 170cc OHV engine, known for its smooth start-up, consistent performance, and long-term durability—ideal for tough mowing jobs.
  • 21-INCH CUTTING WIDTH FOR HIGH EFFICIENCY: The robust steel deck covers a wide 21-inch path, reducing mowing time and making it perfect for medium to large yards.
  • 3-IN-1 FUNCTION: BAGGING, MULCHING & REAR DISCHARGE: Switch easily between modes: collect clippings in the 1.4-bushel bag, mulch to nourish your lawn, or rear-discharge for quick and efficient mowing.
  • 6-POSITION HEIGHT ADJUSTMENT: Quickly adjust the cutting height from 1.5"" to 3.9"" with a single lever to match grass length, season, or preferred lawn look.
  • SELF-PROPELLED WITH LARGE REAR WHEELS: Rear-wheel drive and 10"" large rear wheels offer excellent traction and maneuverability on slopes or uneven terrain.

Why You'll Love It

  • Cut a wide path across medium to large yards with the 21-inch steel deck
  • Navigate slopes and bumpy ground easily using rear-wheel drive and 10-inch rear wheels
  • Manage grass disposal with 3-in-1 bagging, mulching, or rear-discharge capability
  • Adjust cutting height between 1.5 and 3.9 inches using a single 6-position lever
  • Power through tough mowing tasks with a 170cc OHV gas engine

Pros

  • +Self-propelled rear-wheel drive
  • +Large 10-inch rear wheels for traction
  • +Single-lever 6-position height adjustment
  • +3-in-1 bagging, mulching, and rear discharge
  • +Durable steel cutting deck

Cons

  • -Gas engine requires fuel and ongoing engine upkeep
  • -Grass collection bag is limited to 1.4 bushels
  • -No electric start option mentioned

Detailed Review

The PowerSmart 21-Inch Self-Propelled Gas Lawn Mower provides dependable cutting power for homeowners maintaining medium to large yards. Powered by a 170cc OHV gas engine, it tackles tough grass conditions while the self-propelled drive system reduces the physical effort needed to push across your yard.

Built around a durable 21-inch steel deck, this mower cuts a broad path with every pass to speed up yard work. Its self-propelled rear-wheel drive works together with large 10-inch rear wheels, delivering the traction and maneuverability required to handle uneven terrain and yard slopes smoothly.

You can tailor how you handle lawn clippings using the 3-in-1 setup, which lets you mulch directly onto the turf, use the rear discharge for quick clearing, or collect clippings in the included 1.4-bushel bag. A single lever lets you quickly switch between 6 height settings ranging from 1.5 inches to 3.9 inches to match changing seasonal grass heights.

Because this is a gas-powered machine with a 170cc OHV engine, it requires standard gas engine care and fuel handling. Additionally, the 1.4-bushel collection bag will need frequent emptying if you choose to bag clippings over a larger lawn area.

Verdict: The PowerSmart 21-Inch Gas Mower is a strong match for property owners with medium or large lawns, especially those with slopes or uneven ground. Its self-propelled rear drive, wide steel deck, and versatile 3-in-1 clipping options make routine yard care fast and straightforward.

Specifications

  • Engine: 170cc OHV gas engine
  • Deck Material: Steel
  • Cutting Width: 21 inches
  • Drive System: Rear-wheel self-propelled
  • Rear Wheel Size: 10 inches
  • Cutting Height Range: 1.5 inches to 3.9 inches (6 positions)
  • Bag Capacity: 1.4 bushels
  • Discharge Modes: Bagging, mulching, rear discharge

Who Should Buy It

A great fit if you:

  • Have a medium to large yard and want a wide 21-inch cut.
  • Need self-propelled assist and 10-inch wheels for sloped or uneven ground.
  • Prefer switching between mulching, bagging, and rear discharge.
  • Want simple height changes using a single adjustment lever.

Consider something else if you:

  • Prefer a push-style or electric mower with no gas engine maintenance.
  • Need a very large grass collection capacity beyond 1.4 bushels.

FAQ

What cutting options does this mower offer?
It features 3-in-1 capability, allowing you to bag clippings in the 1.4-bushel rear bag, mulch clippings to nourish the lawn, or use rear discharge.

How do you adjust the cutting height?
A single lever lets you select from 6 height positions ranging from 1.5 inches to 3.9 inches.

How does this mower handle hills and rough ground?
It utilizes self-propelled rear-wheel drive combined with 10-inch rear wheels to provide traction on slopes and uneven terrain.

Photos

PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 1
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 2
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 3
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 4
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 5
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 6
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 7
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 8
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 9
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 10
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 11
PowerSmart 21" Self-Propelled Gas Lawn Mower | 170cc OHV Engine | Rear-Wheel photo 12

Product Specs

SpecificationDetails
Brand NamePowerSmart
Model NumberV8721S1
UPC840432713839
Unit Count1 Count
Number of Packs1
ManufacturerPowerSmart
Item Type NameLawn Mower
Manufacturer Part NumberV8721S1
Best Sellers Rank#16,567 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #46 in Walk-Behind Lawn Mowers
ASINB0GWPKFYCK
Customer Reviews3.6 3.6 out of 5 stars (1,852) 3.6 out of 5 stars
Material TypeAlloy Steel
Cutting width21 inches
Item Dimensions D x W x H32.9"D x 16.5"W x 22.6"H
Wheel Size10 inches
Power SourceGas Powered
Operation ModeAutomatic
Maximum Adjustable Cutting Height3.9 inches
Minimum Adjustable Cutting Height1.5 inches
Number of Positions6
ColorInk
Style NameRotary
BrandPowerSmart
MaterialAlloy Steel
StyleRotary
Cutting Width21 inches
Product Dimensions32.9"D x 16.5"W x 22.6"H

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