COLUMBUS, Ind. (August 23, 2002) - Cummins Inc. (NYSE:CUM - News) announced today that it has submitted its third engine for certification under the Environmental Protection Agency's (EPA) strict new diesel emission standards, which take effect on October 1. The heavy-duty, 11-liter ISM engine will be certified to EPA standards that were agreed to by engine manufacturers in 1998.

"We are committed to having our line of EPA compliant engines ready for our customers in October," said Thomas Kieffer, Executive Director - Marketing at Cummins. "We are on track to accomplish this."

On April 2, Cummins announced that its ISX engine became the first engine certified to the new EPA 2.5 gram NOx+NMHC standard. Its medium-duty ISB engine received EPA certification on August 15. The ISM engine, with horsepower (hp) ranging from 280 hp to 385 hp, complements the Cummins ISX product in meeting the needs of short-haul trucking, vocational, construction and bus customers.

"The ISM is a proven engine in the industry," added Kieffer. "We have simply added the same cooled exhaust gas recirculation subsystem that is used on the Cummins ISX and ISB engines. This approach provides customers with the most reliable and best performing engines in their class."

Cummins also will offer a restricted 400 hp and 450 hp rating for the ISM, for motor coach, recreational vehicle and fire applications.

A global power leader, Cummins Inc. is a corporation of complementary business units that design, manufacture, distribute and service electrical power generation systems, engines and related technologies, including fuel systems, controls, air handling, filtration and emissions solutions. Headquartered in Columbus, Indiana (USA), Cummins serves its customers through more than 500 company-owned and independent distributor locations in 131 countries and territories. With 24,900 employees worldwide, Cummins reported sales of $5.7 billion in 2001. Press releases by fax may be requested by calling News on Demand (toll-free) at 888-329-2305. Cummins home page can be found at www.cummins.com.