Cummins Inc., Columbus, Ind., has launched its next generation of QSB engines, which feature enhancements for improved performance, durability and reduced noise. The QSB engines include advanced electronics, new sculpted blocks, rear gear trains and high-pressure common-rail fuel systems. The engines are available in both a four- and six-cylinder platform and are rated from 110 to 275 hp. QSB engines are specifically designed to meet the durability, reliability and power density requirements of premium applications such as excavators, materials handling equipment and cranes, where high performance is essential at every site.