651 Wheel Tractor-Scraper
- Tractor Engine
- Cat C18
- Flywheel Power - Tractor/Scraper
- 469kW (629 hp)
- Net Power
- 469 kW/637 hp
657 Wheel Tractor-Scraper
- Tractor Engine
- Cat C18
- Scraper Engine
- Cat C15
- Flywheel Power - Tractor/Scraper
- 469kW (629 hp) / 353 kW (473 hp)
657G Wheel Tractor-Scraper
- Top Speed (Loaded)
- 33 mph
- Wheelbase
- 36 ft
- Flywheel Power - Tractor/Scraper
- 447 kw (600 hp) / 337 kW (451 hp)