In the early 1960s Caterpillar released the Caterpillar 660, a large capacity three-axle scraper. The single engine Caterpillar 660 Scraper shared many parts with the twin powered Caterpillar 666 as well as similar capacity: 40 yards struck and 54 yards heaped. Equipped with a 560 HP V8 engine and the proven self-adjusting power-shift transmission, the Caterpillar 660 Scraper could reach a top speed of 42 mph. This 55 ton and nearly 60 foot long machine was a very capable earth mover, though the most efficient way to obtain maximum fills included the assistance of two Caterpillar D9’s or similar dozers. A contractor’s favorite, these dependable and durable machines can still be found on job sites today.

Specification highlights:

• Engine: Caterpillar D346
• Base Power (1st gear) – Net: 450.0 hp
• Maximum Gross Vehicle Weight: 115.500 lb
• Loading capacities SAE rating: Heaped 54 cu.yd. Struck: 40 cu.yd.
• Maximum Top speed: 42 MPH