Dongfeng Cummins products include B, C, D, L, and Z series Cummins engines with displacement options of 3.9L, 4.5L, 5.9L, 6.7L, 8.3L, 8.9L, 9.5L, and 13L. These engines offer power coverage from 60 to 770 horsepower and are widely used in light, medium, and heavy-duty trucks, mid-to-high-end intercity buses, large and medium-sized public buses, construction machinery, marine main and auxiliary engines, and generator sets.ZEB Power primarily supplies complete engines and engine components from DCEC, such as the QSB6.7, QSL8.9, 6BTA5.9, 4BT3.9, QSB3.9, QSB4.5, QSB5.9, and 6CTA8.3 models.