CALGARY, Alberta (June 8, 2004) - Cummins Inc. (NYSE:CMI) unveiled a 3000-hp frac rating for the QSK60 diesel engine at the Global Petroleum Show. The rating was developed specifically to meet the high power density and reliability requirements of frac pumping applications and leverages Cummins success with the 2250-hp QSK45. The 60-liter, V-16 configuration features Ferrous Cast Ductile (FCD) pistons that allow for high fuel injection pressures and increased power output with exceptional durability. This new engine rating will be available in the fourth quarter of 2004.

"In 2001, Cummins declared that we would deliver great value in customer support and technology to the oil and gas market," said Mark Levett, vice president and general manager of Cummins high-horsepower engine business. "Since then, we've invested in the right products, technology, people, and infrastructure to better serve our customers. We are actively incorporating customer feedback into our new products either by providing higher-horsepower engines for the gas compression market or providing specialty ratings and options for well-servicing applications. By converting the needs of customers into products, we are gaining business," he added.

Cummins Inc., a global power leader, is a corporation of complementary business units that design, manufacture, distribute and service engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems. Headquartered in Columbus, Indiana (USA), Cummins serves its customers through more than 680 company-owned and independent distributor locations in 137 countries and territories. Cummins also provides service through a vast dealer network of more than 5,000 facilities in 197 countries. With more than 24,000 employees worldwide, Cummins reported sales of $6.3 billion in 2003. Press releases can be found by accessing the Cummins home page at www.cummins.com.