If you have a medium to large lawn with slopes or uneven ground, you know the frustration of a mower that bogs down on hills or requires constant restarting. The PowerSmart 21-inch gas lawn mower lineup offers several solutions, from self-propelled rear-wheel drive models to lightweight push mowers that fold flat for storage. In this review, we assess six top contenders to help you choose the right one for your yard. For more context on how these compare to robotic options, check out our best All-Terrain mowers for hilly lawns guide.
Pros
- Easy start engine fires up quickly and runs reliably.
- Excellent hill performance with self-propelled rear-wheel drive.
- Versatile 3-in-1 cutting options adapt to any lawn condition.
- Durable alloy steel deck handles thick turf efficiently.
- Compact storage with folding handle saves garage space.
Cons
- No customer reviews yet, so long-term reliability is unverified.
- Replacement blades are 20 inches, not 21, so ensure correct ordering.
- Available only in one color (Ink&Red) which may not suit all preferences.
The PowerSmart 21" self-propelled gas lawn mower is designed for homeowners with medium-sized yards, especially those with slopes or uneven terrain. It features a 170cc OHV engine that promises easy starting and consistent power throughout the season. The rear-wheel drive system and large 10-inch wheels take the effort out of mowing hills, letting you guide the mower rather than push it.
Standout features include a 3-in-1 system that allows you to switch between bagging, mulching, and rear discharge without any tools. This versatility means you can handle different grass conditions in a single session. The 21-inch alloy steel deck cuts thick turf cleanly, and the six height positions adjust quickly with one lever, ranging from 1.5 to 3.9 inches.
Build quality is solid with a reinforced steel deck and high-stress points designed for durability. The handle folds flat for vertical storage, saving up to 70% of garage space. PowerSmart backs the mower with customer support, giving buyers some peace of mind.
Potential drawbacks include the lack of verified customer reviews, so real-world performance claims are unconfirmed. Also, replacement blades are 20 inches, not 21, so make sure to order the correct size. The mower is only available in one color, which may not appeal to everyone.
Overall, the PowerSmart 21" self-propelled gas lawn mower offers a strong set of features at a competitive price point. It is well-suited for those with hilly medium yards who want easy starting, versatile cutting options, and compact storage. If you are looking for a reliable mower to tackle uneven terrain, this model is worth considering.
Pros
- Engine starts reliably and delivers consistent power through tough grass
- Wide steel deck cuts mowing time and provides even results
- Versatile 3-in-1 system adapts to different lawn care needs
- Rear-wheel drive and large rear wheels enhance stability on hills
- Simple single-lever height adjustment for quick cutting changes
Cons
- No electric start option requires manual pull starting
- Gas engine requires regular maintenance like oil changes and fuel care
- May be heavy for some users due to steel deck and engine weight
The PowerSmart 21-inch gas lawn mower is a reliable workhorse for homeowners with medium to large lawns. Powered by a 140cc OHV engine, it delivers strong cutting performance even in thick, tall, or damp grass. The 21-inch steel deck cuts a wide path, reducing mowing time and leaving a clean finish.
This mower offers three cutting options: rear bagging for neat collection, mulching for natural fertilization, and rear discharge for easy clipping distribution. The single-lever height adjustment allows you to change cutting height from 1.5 to 3.9 inches in seconds, adapting to different grass types and seasonal growth.
Build quality is solid with a durable steel deck and black finish that resists corrosion. The rear-wheel drive system combined with 10-inch rear wheels provides good traction on slopes and rough terrain, making it easier to maneuver on uneven lawns.
Potential drawbacks include the lack of an electric start, so you’ll need to pull the cord each time. Gas engines also require routine maintenance like oil changes and fuel management. At about 70 pounds, it’s not the lightest push mower, but the driven rear wheels reduce pushing effort on flat areas.
Overall, the PowerSmart 21-inch mower offers excellent value for its price. It combines power, versatility, and ease of use in a well-built package. If you need a dependable gas mower that handles varied grass conditions without breaking the bank, this model is a strong choice.
Pros
- Auto choke and recoil starter for hassle-free ignition every time
- Six cutting heights adapt to seasonal grass conditions easily
- Mulching capability returns nutrients to the soil for a greener lawn
- Foldable handle saves valuable garage space when not in use
- Powerful 144cc engine handles thick grass without bogging down
Cons
- No grass catcher bag included; side-discharge may leave clippings on lawn
- Recoil start requires some effort compared to electric start models
- Gas engine requires regular maintenance like oil changes and fuel care
The PowerSmart DV8621C is a 21-inch gas push lawn mower designed for homeowners with medium-sized yards who want reliable cutting performance without breaking the bank. Powered by a 144cc 4-cycle OHV engine, it delivers enough torque to handle thick grass and uneven terrain. The auto choke and recoil starter make ignition straightforward, even for those not mechanically inclined.
Standout features include the 2-in-1 deck that allows mulching or side-discharge, letting you choose how to manage clippings. The single-lever height adjustment offers six positions from 1.5 to 3.9 inches, making it easy to adapt to different grass lengths and seasonal needs. The 21-inch steel deck provides a wide cutting path, reducing mowing time for typical lawns.
Build quality is solid for the price point, with a steel deck and foldable handle that simplifies storage. The mower weighs 59 pounds, which is manageable for most users. Assembly is minimal, as it arrives 95% pre-assembled. However, the lack of a grass catcher bag means clippings are either mulched or left on the lawn, which may not suit those who prefer a bagged finish.
Drawbacks include the recoil start, which can be tiring for multiple starts, and the need for regular engine maintenance like oil changes. Additionally, the side-discharge chute can leave clumps if the grass is wet. These are common trade-offs for a budget-friendly gas mower.
Overall, the PowerSmart DV8621C offers excellent value for its price. It combines essential features like adjustable height, mulching capability, and easy starting in a durable package. Ideal for homeowners who want a no-frills, effective mower for routine lawn care.
Buying Guide
Engine Power and Starting Reliability
A gas mower’s heart is its engine. PowerSmart uses 140cc to 170cc OHV engines that fire up in one or two pulls thanks to auto choke and recoil start. The BILT HARD model steps up to a 201cc engine with 9.0 ft-lb of torque, making it a strong choice for thick or wet grass. No primer or choke fuss means you spend less time starting and more time mowing.
Self-Propelled vs Push: Which Suits Your Terrain?
For hilly or large lawns, a self-propelled model with rear-wheel drive saves your arms and back. The PowerSmart 21″ Gas Self-Propelled Lawn Mower (B0H4QT361L) and the PowerSmart 21-Inch Self Propelled Gas Lawn Mower (B0C53MG5L6) both offer strong traction on slopes. If your yard is flat and small, a push mower like the PowerSmart 21-Inch Gas Push Lawn Mower with 144cc (B0GXZKGMYQ) is lighter and more affordable. For more advice on handling slopes, read our best All-Terrain mowers for hilly lawns article.
Deck Durability and Cutting Versatility
All six mowers feature a 21-inch steel deck that cuts a wide path and resists rust. The 3-in-1 capability (bagging, mulching, side discharge) is standard on most models, letting you adapt to seasonal conditions. The PowerSmart 21-Inch Gas Lawn Mower (B0CYZYMTRG) is a 2-in-1 (mulch and side discharge) which still covers basic needs. A single lever adjusts cutting height from 1.5 to 3.9 inches across all PowerSmart units, while the BILT HARD offers 10 positions from 1.2 to 3.75 inches.
Storage and Maneuverability
If garage space is tight, look for a mower with a foldable handle. Check the current price on Amazon before you buy. The BILT HARD mower has a foam-wrapped handle and larger wheels (9.5-inch rear, 8-inch front) for smooth rolling. For a comparison of robotic mowers that store themselves, see our husqvarna automower 315X review.
Final Thoughts
After evaluating the entire PowerSmart 21-inch gas lawn mower lineup, we recommend the PowerSmart 21″ Gas Self-Propelled Lawn Mower for homeowners with hilly terrain who want effortless uphill mowing and the PowerSmart 21-Inch Gas Push Lawn Mower with 144cc for budget-conscious buyers with flat yards who value easy storage and reliable starting. Both deliver solid performance and long-term value.
Frequently Asked Questions
How easy is it to start a PowerSmart gas mower?
Most PowerSmart models feature an auto choke and recoil start, so they typically start in one or two pulls. Users report consistent ignition even after storage, with no priming or choking needed.
Which PowerSmart mower is best for hills?
The self-propelled models with rear-wheel drive, like the PowerSmart 21″ Gas Self-Propelled Lawn Mower (B0H4QT361L), offer the best traction on slopes. The 10-inch rear wheels and powerful 170cc engine handle inclines without pushing effort.
How does the BILT HARD mower compare to PowerSmart?
The BILT HARD 201cc Push Lawn Mower has a larger engine and 10-position height adjustment, making it a strong alternative for thick grass. However, it is a push mower, not self-propelled. For a full comparison, read our BILT HARD gas lawn mower review.
What maintenance does a gas mower need?
Regular maintenance includes changing the oil after the first 5 hours and then annually, cleaning or replacing the air filter, sharpening the blade each season, and draining fuel before winter storage. Check the owner’s manual for specific intervals.
