The DK2 OPG888E Stump Grinder is the better stump grinder overall, rated 4.2 to 3.8. The DK2 OPG888E Stump Grinder leads on features, depth and teeth. The DK2 OPG777 Stump Grinder wins on price. The DK2 OPG777 Stump Grinder costs $580.99 less ($1,799 vs $2,379.99).
A well-built Kohler grinder with key start and a long warranty, for frequent use. It costs a little less than the MechMaxx SG380 Kohler but does not swing across the stump.
Amazon $2,379.99For a buyer who wants a known engine and the longest machine warranty in this price range. Depth is average.
Amazon $1,799Prices 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.
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 OPG888E Stump Grinder | DK2 OPG777 Stump Grinder |
|---|---|---|
| Overall rating | 4.2/5 | 3.8/5 |
| Price 25% | 49 $2,379.99 | 68 $1,799 |
| Depth 20% | 80 10 in below grade | 60 9 in below grade |
| Height or wheel 10% | 75 14 in above grade | 50 12 in above grade |
| Power 10% | 100 429 cc engine | 100 429 cc engine |
| Teeth 10% | 100 12 teeth | 62 9 teeth |
| Features 15% | 70 electric start, tow bar | 35 tow bar |
| Warranty 10% | 100 3-year warranty | 100 3-year warranty |
| DK2 OPG888E Stump Grinder | DK2 OPG777 Stump Grinder | |
|---|---|---|
| Cutting | ||
| Type | Walk-behind | Walk-behind |
| Depth below grade | 10 in | 9 in |
| Height above grade | 14 in | 12 in |
| Cutter wheel | 14 in | 12 in |
| Teeth | 12 | 9 |
| Power | ||
| Engine | Kohler Command PRO CH440 | Kohler Command PRO CH440 |
| Displacement | 429 cc | 429 cc |
| Engine power | 14 hp | 14 hp |
| Electric start | Yes | No |
| Build | ||
| Tow bar | Yes | Yes |
| Weight | 285 lb | 231 lb |
| Warranty | 3 years | 3 years |
