PowerSmart 21 in 170cc RWD DB8621S
The cheapest way into a rear wheel drive 3-in-1 gas mower, for sloped lawns on a tight budget. Expect less dealer support than a Toro.
Amazon $339.99$339.99
The PowerSmart 21 in 170cc RWD DB8621S is the better lawn mower overall, rated 3.8 to 3.0. The PowerSmart 21 in 170cc RWD DB8621S leads on cutting modes, power and value. The PowerSmart 21 in 170cc RWD DB8621S costs $99.01 less ($339.99 vs $439).
Toro Recycler 21 in RWD 21321
#19 in Self-propelledFull review
The entry Toro self-propelled mower, for half acre lawns with some slope. Rear wheel drive and variable speed make it easier to use than a push mower for little extra money.
Toro $439$439
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the PowerSmart 21 in 170cc RWD DB8621S for cutting modes (3 ways to cut: bag, mulch, side discharge vs 2 ways to cut: bag, mulch), power (170 cc engine vs 140 cc engine) and value ($16.19 per inch of deck ($339.99, 21 in deck) vs $20.90 per inch of deck ($439, 21 in deck)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-propelled lawn mower; a clear win is highlighted. How we rank explains each one.
| Factor weight | PowerSmart 21 in 170cc RWD DB8621S | Toro Recycler 21 in RWD 21321 |
|---|---|---|
| Overall rating | 3.8/5 | 3.0/5 |
| Value 30% | 100 $16.19 per inch of deck ($339.99, 21 in deck) | 81 $20.90 per inch of deck ($439, 21 in deck) |
| Deck 20% | 12 21 in deck | 12 21 in deck |
| Power 15% | 62 170 cc engine | 25 140 cc engine |
| Cutting modes 15% | 100 3 ways to cut: bag, mulch, side discharge | 50 2 ways to cut: bag, mulch |
| Warranty 20% | 50 warranty not published (neutral score used) | 25 2-year warranty |
Specifications
| PowerSmart 21 in 170cc RWD DB8621S | Toro Recycler 21 in RWD 21321 | |
|---|---|---|
| Cutting | ||
| Deck width | 21 in | 21 in |
| Deck | Steel | Steel |
| Cutting height | 1.5 to 3.9 in, 6 positions | 1.2 to 3.8 in |
| Bag | Yes | Yes |
| Bag capacity | - | 2 bushels |
| Mulch | Yes | Yes |
| Side discharge | Yes | No |
| Power | ||
| Power | Gas | Gas |
| Engine or battery | 170 cc | 140 cc (Briggs & Stratton EXi 140cc) |
| Electric start | No | No |
| Build | ||
| Drive | Rear-wheel drive | Rear-wheel drive |
| Folds upright | Yes | No |
| Weight | 59 lb | 67 lb |
| Warranty | - | 2 years |