No, there has never been a D12 dozer (Yet). TheD11 has been king of the Cat dozers for about 30 years now. In that time haul truck capacities have double and the largest open cut mines have grown even larger, so I wouldn’t be surprised if Caterpillar bring out something bigger in the future.

What is bigger than a D11 dozer?

The biggest dozers in the world are: Komatsu’s D575A-3SD, ACCO Super Bulldozer, Caterpillar D11, John Deere 1050K, and Liebherr PR 764 Litronic dozer.

What is bigger than a D10 dozer?

Caterpillar D11 dozer A premier piece of yellow iron in the Caterpillar fleet, the D11 was introduced in the mid-80s to replace the D10 with a bigger track and blade, thus increasing capacity and productivity. … While not built for speed, the D11 is a powerhouse and the closest rival to Komatsu’s vaunted D575.