PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower,170CC OHV Engine,Bagging/Mulching/Rear Discharging, 6 Cutting Heights, Durable Steel Deck, Rear-Wheel Drive, for Garden, Yard, Review

Overview

The PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower aims to deliver a lot of bang for under three hundred bucks. With a 170cc OHV engine, rear-wheel drive, and the ability to bag, mulch, or rear discharge, it’s designed for homeowners with small to medium lawns—think a quarter to half an acre—who want a self-propelled gas mower without the premium price tag. It’s a budget-friendly workhorse that leans into simplicity, but its mixed reviews suggest you should know exactly what you’re getting into.

Who Should Buy This

1. Homeowners with flat, 1/4 to 1/3 acre lawns – The rear-wheel drive system handles flat terrain well, and the 21-inch deck is a good fit for modest-sized yards where you don’t need a commercial beast.
2. Buyers on a strict budget who still want self-propulsion – If you’re shopping under $300 and refuse to push a mower manually, this is one of the few gas-powered self-propelled options at this price point.
3. DIYers who don’t mind minor assembly and maintenance – The PowerSmart comes mostly assembled, but you’ll need to attach the handle and wheels. It’s not plug-and-play, and owners comfortable with basic wrench work will have a better experience.
4. Homeowners who want 3-in-1 flexibility without paying extra – The ability to switch between bagging, mulching, and rear discharge is standard here, but you don’t have to hunt for separate kits—it’s all included out of the box.

Key Features Breakdown

• 170cc OHV Engine – This is a Chinese-made engine (typically a copy of a Honda GXV design). It’s adequate for light to medium grass, but don’t expect it to power through thick, wet Bermuda. It starts reliably with primer bulb and choke, but some owners report hard starting after storage. Use ethanol-free gas and stabilizer.
• 21-Inch Steel Deck – The durable steel deck is a plus over cheaper plastic decks. It won’t crack, but it’s heavy—the mower weighs about 65 pounds. That weight helps with cutting stability but makes it a beast to lift for storage.
• Self-Propelled Rear-Wheel Drive – Rear-wheel drive gives better traction on slopes than front-wheel drive, but this system is cable-driven, not hydrostatic. You get a single speed, and it’s not infinitely adjustable. On flat ground it’s fine; on thick grass it can bog down. The engagement is a simple squeeze lever.
• 6 Cutting Heights (1.25" to 3.75") – Adjustment is via a single lever on each wheel—yes, you have to bend down and adjust all four wheels individually. It’s not quick, but it gives you fine control. The range is good for most cool-season and warm-season grasses.
• 3-in-1 Capability – Comes with a bag (though it’s a small, 1.5-bushel plastic bag), a mulching plug, and a rear discharge chute. Switching takes about 30 seconds. The bag fills quickly in tall grass, so you’ll be emptying it often.
• No Prime or Choke? – Actually, it does have a primer bulb and choke. Some online listings omit this, but the manual confirms it. That’s standard for small engines.

Pros

• Unbeatable price for a self-propelled gas mower – At $297, you’re paying less than half of what a comparable Honda or Toro costs. If your budget is tight, this is the only game in town.
• Rear-wheel drive traction – On gentle slopes or damp grass, the rear drive pulls better than front-wheel drive mowers. It’s not a hill climber, but it’s competent.
• Steel deck durability – Unlike many mowers under $300 that use stamped aluminum or plastic, this steel deck will handle bumps and rocks without cracking.
• Easy start (when maintained) – With fresh gas and a clean carburetor, the engine fires up in 1-2 pulls. The primer bulb is responsive.
• Compact storage – The handle folds down without tools, and the mower stands upright. It fits in a small shed or garage corner.
• Included 3-in-1 versatility – No extra purchases needed. You get bagging, mulching, and side discharge right in the box. That’s rare at this price.

Cons

• Single-speed self-propulsion is finicky – The cable-driven system has a narrow sweet spot. Too slow and it feels like you’re pushing it; too fast and it lurches. You can’t adjust speed on the fly—it’s fixed.
• Small bag capacity – The 1.5-bushel bag is tiny. On a 1/4-acre lawn with thick grass, you’ll be stopping every 5-7 minutes to empty it. Plan to mulch or side discharge if you want to save time.
• Hard starting after storage – Many owners report the carburetor gums up quickly if you leave gas in it over winter. You’ll need to drain the tank or run it dry before long breaks. This is a common complaint for budget engines.
• Individual wheel height adjustments – You have to bend over and adjust each wheel separately. It’s slow and annoying, especially if you change heights often. Most mowers at this price have a single-lever system, but not this one.

Bottom Line

The PowerSmart 21-Inch is a “you get what you pay for” mower, but what you get is actually usable for the right buyer. If you have a flat, modest lawn, don’t mind a few quirks with the self-propulsion and bag size, and absolutely need to stay under $300, this mower will cut your grass reliably for a few seasons—provided you maintain the engine religiously. It’s not a long-term investment, and it won’t rival a Honda or Toro in feel or performance, but it’s a solid value for the budget-conscious homeowner who’s willing to work around its limitations. I’d recommend it only if you’re comfortable with basic small-engine upkeep and don’t expect premium features.

Frequently Asked Questions

Q: Does this mower have a washout port for cleaning the deck?
A: No, it does not. You’ll need to tip the mower (spark plug side up) and spray the underside with a hose. Avoid tipping it on the air filter side to prevent oil leakage.

Q: Can I use this mower on thick, wet grass?
A: It struggles with wet, heavy grass. The engine bogs down, and the bag clogs quickly. Stick to dry grass, and consider mulching instead of bagging for better performance in thick conditions.

**Q: How long does the engine typically last