MechMaxx SG380 Kohler Stump Grinder
#3 in Walk-behindFull review
The SG380 for a buyer who values a name-brand engine and local service. Otherwise the Ducar version does the same work for less.
Amazon $2,699$2,699
The MechMaxx SG380 Kohler Stump Grinder is the better stump grinder overall, rated 4.1 to 4.0. The MechMaxx SG380 Kohler Stump Grinder leads on features, depth and teeth. The Digmight 15HP E-Start Stump Grinder wins on price and height or wheel. The Digmight 15HP E-Start Stump Grinder costs $1,100 less ($1,599 vs $2,699).
Digmight 15HP E-Start Stump Grinder
#4 in Walk-behindFull review
A low-cost way to get key start and a tow bar. Fine for a homeowner whose stumps stand tall rather than run deep.
Amazon $1,599$1,599
Prices were last checked November 3, 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 MechMaxx SG380 Kohler Stump Grinder for features (electric start, tow bar, swings across the stump vs electric start, tow bar), depth (10 in below grade vs 9 in below grade) and teeth (12 teeth vs 9 teeth).
- Choose the Digmight 15HP E-Start Stump Grinder for price ($1,599 vs $2,699) and height or wheel (20.5 in above grade vs 15 in above grade).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every walk-behind stump grinder; a clear win is highlighted. How we rank explains each one.
| Factor weight | MechMaxx SG380 Kohler Stump Grinder | Digmight 15HP E-Start Stump Grinder |
|---|---|---|
| Overall rating | 4.1/5 | 4.0/5 |
| Price 25% | 41 $2,699 | 75 $1,599 |
| Depth 20% | 80 10 in below grade | 60 9 in below grade |
| Height or wheel 10% | 88 15 in above grade | 100 20.5 in above grade |
| Power 10% | 100 429 cc engine | 96 420 cc engine |
| Teeth 10% | 100 12 teeth | 62 9 teeth |
| Features 15% | 100 electric start, tow bar, swings across the stump | 70 electric start, tow bar |
| Warranty 10% | 33 1-year warranty | 33 1-year warranty |
Specifications
| MechMaxx SG380 Kohler Stump Grinder | Digmight 15HP E-Start Stump Grinder | |
|---|---|---|
| Cutting | ||
| Type | Walk-behind | Walk-behind |
| Depth below grade | 10 in | 9 in |
| Height above grade | 15 in | 20.5 in |
| Cutter wheel | 14 in | 12 in |
| Teeth | 12 | 9 |
| Power | ||
| Engine | Kohler CH440 | 420cc 4-stroke |
| Displacement | 429 cc | 420 cc |
| Engine power | 14 hp | 15 hp |
| Electric start | Yes | Yes |
| Build | ||
| Swings across stump | Yes | - |
| Tow bar | Yes | Yes |
| Weight | 303 lb | - |
| Warranty | 1 year | 1 year |