Generations
| Model | Size | Built around | Used market | Enclosed cab |
|---|---|---|---|---|
| Komatsu WA120-1 | 75-100 hp | 1994 | known | 72% |
| Komatsu WA120 | 75-100 hp | 1997 | known | 73% |
| Komatsu WA1203L | 100-150 hp | 1999 | rare | — |
| Komatsu WA1203MC | 100-150 hp | 1999 | rare | — |
| Komatsu WA120-3 | 100-150 hp | 2002 | rare | — |