Generations
| Model | Size | Built around | Used market | Enclosed cab |
|---|---|---|---|---|
| Komatsu WA600-1 | 300-500 hp | 1993 | common | 96% |
| Komatsu WA6001L | 500-5000 hp | 1993 | known | — |
| Komatsu WA600 | 300-500 hp | 1996 | rare | — |
| Komatsu WA6001LC | 300-500 hp | 1996 | rare | — |
| Komatsu WA6001LE | 500-5000 hp | 1998 | rare | — |
| Komatsu WA600-3L | 300-500 hp | 2000 | rare | — |
| Komatsu WA6003LK | 300-500 hp | 2002 | rare | — |
| Komatsu WA600-3 | 300-500 hp | 2005 | rare | — |