Senix 21 in 170cc FWD A025054-A
A 3-in-1 self-propelled mower for flat lawns with lots of trees and beds to steer around.
Amazon $399.99$399.99
The Senix 21 in 170cc FWD A025054-A is the better lawn mower overall, rated 3.6 to 1.9. The Senix 21 in 170cc FWD A025054-A leads on value, cutting modes and deck. The Husqvarna W520 wins on power. The Senix 21 in 170cc FWD A025054-A costs $1,099.01 less ($399.99 vs $1,499).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Husqvarna W520
#22 in Self-propelledFull review
A commercial grade walk mower for owners who want something that outlasts consumer models. Most home lawns are served as well by a Toro for much less.
Husqvarna $1,499$1,499
Which should you buy?
- Choose the Senix 21 in 170cc FWD A025054-A for value ($19.05 per inch of deck ($399.99, 21 in deck) vs $74.95 per inch of deck ($1,499, 20 in deck)), cutting modes (3 ways to cut: bag, mulch, side discharge vs 1 way to cut: bag) and deck (21 in deck vs 20 in deck).
- Choose the Husqvarna W520 for power (179 cc engine vs 170 cc engine).
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 | Senix 21 in 170cc FWD A025054-A | Husqvarna W520 |
|---|---|---|
| Overall rating | 3.6/5 | 1.9/5 |
| Value 30% | 93 $19.05 per inch of deck ($399.99, 21 in deck) | 0 $74.95 per inch of deck ($1,499, 20 in deck) |
| Deck 20% | 12 21 in deck | 0 20 in deck |
| Power 15% | 62 170 cc engine | 74 179 cc engine |
| Cutting modes 15% | 100 3 ways to cut: bag, mulch, side discharge | 0 1 way to cut: bag |
| Warranty 20% | 25 2-year warranty | 0 warranty not published, scored as none |
Specifications
| Senix 21 in 170cc FWD A025054-A | Husqvarna W520 | |
|---|---|---|
| Cutting | ||
| Deck width | 21 in | 20 in |
| Deck | Steel | Aluminum |
| Cutting height | 1.2 to 3.8 in, 6 positions | 1.5 to 4.5 in, 9 positions |
| Bag | Yes | Yes |
| Bag capacity | 1.7 bushels | 1.9 bushels |
| Mulch | Yes | No |
| Side discharge | Yes | No |
| Power | ||
| Power | Gas | Gas |
| Engine or battery | 170 cc | 179 cc (Kawasaki FJ180 KAI) |
| Build | ||
| Drive | Front-wheel drive | Rear-wheel drive |
| Folds upright | - | Yes |
| Weight | 61.7 lb | 112 lb |
| Warranty | 2 years | - |