Joe Harpring | The Republic Guests inspect the new QSK95 diesel engine unveiled by Cummins Inc., at its plant in Seymour, Ind. Tuesday November 1, 2011. Among many applications, the 16-cylinder, 4,000-horsepower high-speed engine will power tug boats, mining equipment and generators. (AP PHOTO/THE REPUBLIC, Joe Harpring) Joe Harpring | The Republic Cummins Inc., unveiled its QSK95 diesel engine at its production and technical center in Seymour, Ind. Tuesday November 1, 2011.