DK2 OPG777 Stump Grinder
#7 in Walk-behindFull review
For a buyer who wants a known engine and the longest machine warranty in this price range. Depth is average.
Amazon $1,799$1,799
The DK2 OPG777 Stump Grinder is the better stump grinder overall, rated 3.8 to 3.6. The DK2 OPG777 Stump Grinder leads on warranty, height or wheel and price. The PowerKing PK0803-EH Stump Grinder wins on features. The DK2 OPG777 Stump Grinder costs $246 less ($1,799 vs $2,045).
PowerKing PK0803-EH Stump Grinder
#11 in Walk-behindFull review
For a buyer who wants a Kohler key-start grinder with spares in the box. Its reach above and below grade is modest.
WoodSplitterDirect $2,045$2,045
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 DK2 OPG777 Stump Grinder for warranty (3-year warranty vs 1-year warranty), height or wheel (12 in above grade vs 10 in above grade) and price ($1,799 vs $2,045).
- Choose the PowerKing PK0803-EH Stump Grinder for features (electric start, tow bar vs tow bar).
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 | DK2 OPG777 Stump Grinder | PowerKing PK0803-EH Stump Grinder |
|---|---|---|
| Overall rating | 3.8/5 | 3.6/5 |
| Price 25% | 68 $1,799 | 59 $2,045 |
| Depth 20% | 60 9 in below grade | 60 9 in below grade |
| Height or wheel 10% | 50 12 in above grade | 25 10 in above grade |
| Power 10% | 100 429 cc engine | 100 429 cc engine |
| Teeth 10% | 62 9 teeth | 62 9 teeth |
| Features 15% | 35 tow bar | 70 electric start, tow bar |
| Warranty 10% | 100 3-year warranty | 33 1-year warranty |
Specifications
| DK2 OPG777 Stump Grinder | PowerKing PK0803-EH Stump Grinder | |
|---|---|---|
| Cutting | ||
| Type | Walk-behind | Walk-behind |
| Depth below grade | 9 in | 9 in |
| Height above grade | 12 in | 10 in |
| Cutter wheel | 12 in | 12 in |
| Teeth | 9 | 9 |
| Power | ||
| Engine | Kohler Command PRO CH440 | Kohler Command Pro CH440 |
| Displacement | 429 cc | 429 cc |
| Engine power | 14 hp | 14 hp |
| Electric start | No | Yes |
| Build | ||
| Tow bar | Yes | Yes |
| Weight | 231 lb | 250 lb |
| Warranty | 3 years | 1 year |