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,

What It Is

This is the full PowerSmart 21-inch self-propelled gas lawn mower (model PS21SP) with a 170cc OHV engine and a 3-in-1 cutting system (bag, mulch, rear discharge). It’s designed for residential lawns up to about half an acre, offering rear-wheel drive for better traction on slopes or uneven terrain.

Fitment & Compatibility

• Deck size: 21-inch cutting width – only fits mowers with this exact deck size.
• Model check: This is a complete mower, not a replacement part. It’s model PS21SP. Verify your mower’s model number if you’re replacing one – this is a direct swap for the same PowerSmart model.
• OEM vs aftermarket: This is the OEM product from PowerSmart. No third-party compatibility with other brands (e.g., Honda, Troy-Bilt, Toro) – it’s a standalone machine.
• Measurements: Overall dimensions: approx. 56" L x 22" W x 38" H. Weight: ~65 lbs. Check your storage space and transport capacity.

Key Things to Know

• Quality concerns: 3.3/5 rating (57 reviews) suggests mixed reliability. Common complaints include engine starting issues, poor self-propelled drive engagement, and deck rusting. Not a commercial-grade unit.
• Installation difficulty: Minimal – it arrives mostly assembled (handlebar, wheels, and bag need attachment). Tools required: screwdriver and wrench (both included). Expect 15-30 minutes.
• Common gotchas: The self-propelled cable may need adjustment out of the box. Check the oil level before first start (engine ships without oil). The grass bag is prone to tearing if overfilled. Rear discharge chute can clog in wet grass.
• Warranty: 2-year limited warranty (engine: 1 year). Keep purchase receipt and register online.

Should You Buy It

This mower is a budget-friendly option for homeowners with small, flat lawns who need a self-propelled machine without spending $400+. However, given the low rating and frequent complaints about reliability, it’s best suited for light, occasional use (once a week, dry grass) and for buyers comfortable with basic maintenance and adjustments. If you have a larger yard, hills, or want a machine that lasts 5+ years, consider a Honda or Toro instead.