Dressta TD-8S/TD-9S Hydrostatic Dozers
Two hydrostatic compact crawler dozers—the 22,000-pound TD-8S and 24,250-pound TD-9S—are available to the North American market. The new dozers use a dual-path hydrostatic drive system that enables full power to both tracks during gradual turns and counter-rotation pivot turns. The new tractors are powered by electronically controlled, Tier 4-Final, QSF 3.8 Cummins engines that use a selective catalytic reduction system and are rated, respectively, at 100 and 120 horsepower (gross).
source: https://www.constructionequipment.com/dressta-td-8std-9s-hydrostatic-dozers