Construction Machinery: Self-Powered Scraper Caterpillar

Model	Tractor clearance
657G	645 mm - 2.1 ft.
637G	665 mm - 2.2 ft.
631G	665 mm - 2.2 ft.
627G	553 mm - 1.8 ft.
627E	522 mm - 1.7 ft.
623G	553 mm - 1.8 ft.
621G	553 mm - 1.8 ft.