Yes, Cummins Makes a 1,000 Horsepower Engine for the Army—and It’s a 4 Cylinder

by Henry Cesari December 26, 2022 If you’re a Cummins fan, you may have memorized the stats of the six-cylinder 6BT offered in heavy-duty Ram trucks. But did you know that Cummins makes an even more powerful diesel for military vehicles? The Cummins Advanced Combat Engine (ACE) produces up to 1,000 horsepower.