X15 diesels showed quick throttle response and strong acceleration on the TRC's tracks. Engine brakes were impressively strong, even at low rpm's. A parade of X15-powered tractor-trailers led the ...

Cummins Inc. (NYSE:CMI), a leading designer and manufacturer of diesel and natural gas engines with a market capitalization of $54.9 billion, has been navigating a complex market environment ...

COLUMBUS, Ind. – Cummins, working with the Propane Education and Research Council (PERC), has developed a medium-duty propane demonstration engine that it claims will outperform diesel in key areas.

Cummins Inc. (NYSE:CMI) presented its third-quarter 2025 earnings results on November 6, revealing a complex performance landscape across its business segments. While the company’s reported EPS of ...

CEO Jennifer Rumsey highlighted record performance in the Power Systems segment as a major achievement for Q1 2025. Despite the strong results, she noted significant uncertainty stemming from trade ...