Generations
| Model | Size | Built around | Used market | Enclosed cab |
|---|---|---|---|---|
| Komatsu GD655A-2 | 100-150 hp | 1984 | rare | — |
| Komatsu GD655A | 150-200 hp | 1990 | rare | — |
| Komatsu GD655 | 150-200 hp | 2004 | rare | — |
| Komatsu GD655A-3 | 150-200 hp | 2004 | rare | — |
| Komatsu GD655-3 | 100-150 hp | 2004 | known | 93% |
| Komatsu GD6553VHP | 150-200 hp | 2006 | rare | — |
| Komatsu GD6553E0 | 150-200 hp | 2009 | rare | — |