Cummins Committed to Remaining a Leader in Clean Diesel Technology; Company Displays Readiness to Meet 2007 EPA Emissions Standards.

WASHINGTON -- Cummins Inc. (NYSE:CMI) today once again demonstrated its commitment to clean diesel technology by joining other leading engine-makers, industry groups and the EPA at an event designed to display the industry's readiness to meet the 2007 U.S. EPA on-highway emissions regulations.

Ed Pence, Vice President and General Manager - Heavy Duty Engine Business - represented Cummins at today's event sponsored by the Diesel Technology Forum, which also featured remarks by EPA Administrator Steven Johnson and a "white handkerchief test" to demonstrate the clean-running 2007 engines.

Pence spoke of the success of Cummins cooled exhaust gas recirculation (EGR) technology and reaffirmed that the Company's 2007 engines will be fully compliant with the new EPA regulations, which go into effect Jan. 1, 2007.

"Diesel engines are vital to the success of a number of industries worldwide because of their reliability and inherent fuel efficiency. And, as the 2007 EPA regulations clearly demonstrate, clean diesel technology is good for the economy and the environment," Pence said.

"We're confident that our cooled-EGR technology - combined with effective exhaust aftertreatment and the introduction of ultra low sulfur diesel fuel - offers the best solution for our on-highway customers, and we're on schedule to deliver as promised just as we did in 2002."

The 2007 engine line is just the latest example of how Cummins leverages its complementary capabilities to produce the most dependable products for customers in all its markets around the world.

Cummins is the only independent engine manufacturer with the in-house capability to produce all major engine systems - combustion, air handling, electronics, fuel systems and exhaust aftertreatment - which allows the Company to provide the best solution to customers across all applications.

"Given the breadth of our engine design capabilities, we consider emissions technology a competitive advantage for Cummins and we welcome the new EPA regulations," Pence said. "Our customers should have confidence that we are prepared to deliver the best possible product in 2007 - one that will be easier on the environment, but won't sacrifice the reliability and fuel efficiency for which Cummins is known."

Cooled-EGR, introduced to meet the 2002 EPA emissions standards, has proven to be an effective and reliable solution for the North American on-highway truck market and remains at the heart of Cummins efforts to meet the 2007 regulations.

This proven technology has been widely accepted by Cummins customers, who have purchased more than 300,000 cooled-EGR powered vehicles that have logged more than 30 billion miles since October 2002. The 2007 engines will build on that success, as well as on the Company's expertise in exhaust aftertreatment technologies.

The result will be a cleaner-running engine that offers comparable fuel economy to today's products and that will live up to Cummins industry-leading standards for dependability. In order to meet the 2007 emission regulations, Cummins will combine the newest version of its cooled-EGR engine with a particulate filter designed and produced by Emission Solutions, a division of Cummins.

Cummins Emission Solutions was formed in 2002 specifically to design and manufacture exhaust aftertreatment products to help Cummins and other engine manufacturers meet ever-tightening emissions requirements around the world. Cummins Emission Solutions, which operates in both the first-fit and retrofit markets, provides state-of-the-art technologies designed to clean the air by removing oxides of nitrogen, particulate matter, hydrocarbons and carbon monoxide from diesel engine emissions.

"As emissions regulations become more stringent around the world, exhaust aftertreatment is going to play an increasingly vital role in the diesel engine industry," said Mike Cross, Vice President - Cummins Emission Solutions. "The leading-edge products being designed by Cummins Emission Solutions will not only allow Cummins to remain at the forefront of emissions technology, but represent a significant growth opportunity with customers outside the Company."

About Cummins

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 customers in more than 160 countries through its network of 550 Company-owned and independent distributor facilities and more than 5,000 dealer locations. Cummins reported net income of $550 million on sales of $9.9 billion in 2005. Press releases can be found on the Web at www.cummins.com.

Information provided in this release that are not purely historical are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding the company's expectations, hopes, beliefs and intentions on strategies regarding the future. It is important to note that the company's actual future results could differ materially from those projected in such forward-looking statements because of a number of factors, including, but not limited to, general economic, business and financing conditions, labor relations, governmental action, competitor pricing activity, expense volatility and other risks detailed from time to time in Cummins Securities and Exchange Commission filings.