Cummins Announces Major Initiative to Reduce NOx Emissions Through Electronic Calibration; First in a Series of Environmental Initiatives.

Business Editors

COLUMBUS, Ind.--(BUSINESS WIRE)--March 5, 2001

Cummins Inc. (NYSE:CUM) announced today a major initiative to provide engine owners with an electronic calibration that will generate lower levels of oxides of nitrogen (NOx). These calibrations will be available on 1996 to 1998 Cummins M11 Plus or N14 Plus engines. This voluntary low NOx program is the first of a number of the company's upcoming initiatives to promote a cleaner environment.

"We are providing our customers with a way to positively impact the environment today," said Martha Brooks, Cummins Vice President and General Manager - Truck and Bus Business. "This will allow our truck customers to achieve lower NOx levels immediately with no reduction in performance or reliability. Customers may go to qualified Cummins distributors or authorized dealers to have electronic calibrations uploaded in just minutes. This program signifies the strength and depth of the Cummins commitment to the diesel industry, to our environment, and to our customers."

"This truly is a win-win for customers. We offer products today which lead the industry in fuel economy, and we can generate additional environmental benefits by recalibrating in-service engines before rebuild," added Brooks. The program will be formally unveiled along with a special promotion at the Mid-America Truck show on March 22.

Cummins is a pioneer in the development of technology that provides customers with the best life-cycle operating costs while achieving lower emissions levels. Since 1974, Cummins has lowered the NOx emissions for on-highway trucks by over 75%, and particulate matter (PM) emissions by over 90%, and is demonstrating new technology which will be required for future emissions regulations. More information on Cummins environmental leadership can be found in the Cummins 2000 Environmental Annual Report, available on the Internet at http://www.cummins.com/na/pdf/en/whoweare/environment/enviro_2000.pdf.

Cummins, headquartered in Columbus, Ind., is the world's largest producer of commercial diesel engines above 50 horsepower. The company provides products and services for customers in markets worldwide for engines, power generation and filtration. Cummins reported sales of $6.6 billion in 2000. Press releases by fax may be requested by calling News on Demand (toll free) at 888-329-2305. Cummins' home page on the internet can be found at http://www.cummins.com.