Two variants are produced: one for the Australian market, introduced in 1995 aimed at heavy road train operators, and a 2008 version introduced in North America.

The Titan can haul loads up to 200 tonnes GCWR and comes with many heavy-duty options that are not usually found on highway trucks.

In March 2008, Titan was introduced in Bulldog magazine.

[1] The target markets are the heavy-haul applications of: construction, logging, mining, oil field, and heavy equipment hauling.

[2] It will replace the now retired CL model which served as Mack's "big bore" truck which was powered by the Cummins ISX.