1987 Caterpillar 631D Motor Scraper

1987 Caterpillar 631D motor scraper with a Cat 3408 engine rated at 450 net horsepower (at 2,000 rpm). The long block was replaced approximately 2,600 hours ago, and the unit has new cutting edges and paddles. Tires have 100 hours or less of use. Heaped capacity is 31 cubic yards, operating weight is 88,900 lbs, and maximum forward speed is 31 mph.