Generations
| Model | Size | Built around | Used market | Enclosed cab |
|---|---|---|---|---|
| Komatsu D68PLGP | 150-200 hp | 1988 | rare | — |
| Komatsu D68 | 150-200 hp | 1989 | rare | — |
| Komatsu D68E-1 | 150-200 hp | 1990 | common | 27% |
| Komatsu D68P-1 | 150-200 hp | 1990 | known | 35% |
| Komatsu D68P | 150-200 hp | 1991 | rare | — |
| Komatsu D68E | 150-200 hp | 1992 | known | — |