Caterpillar 657 4х4 self-propelled wheel articulated Scraper, the first twin-engine, bucket capacity 33.5 m3 capacity 45 tons, depth 0.6 m, working weight 58 tons, maximum speed 55 km/h.
Engine: truck D-346T 500 HP, Scraper D-343A 360 HP
Manufactured in the USA in 1968-69.