| Model Num | Machine S/N Base | Machine S/N First |
|---|---|---|
| D53 (SERIES 17) | D53A-17 | 80001 |
| Category: Bulldog Hydraulic Kits -> Komatsu -> Crawler Tractors | ||
| D53 (SERIES 17) | D53P-17 | 80001 |
| Category: Bulldog Hydraulic Kits -> Komatsu -> Crawler Tractors | ||
| D53 (SERIES 17) | D53S-17 | 80001 |
| Category: Bulldog Hydraulic Kits -> Komatsu -> Crawler Tractors | ||
| D57 | * | 9001 |
| Category: Bulldog Hydraulic Kits -> Komatsu -> Crawler Loaders | ||