The Cat D4H, D5H, D6H and D7H medium dozer models were the first to feature the high drive design, and in 1987, the D8L model was added to the family. In addition to bringing many of the same ...

The Cat D4H, D5H, D6H and D7H dozer models were the first to feature the high drive design, and in 1987, the D8L model was added to the family. D6 and D6 XE dozers are manufactured exclusively in East ...