Fleetguard® Closed Crankcase Ventilation (CCV) System Receives Conditional EPA Verification for Reduced Emissions

NASHVILLE, Tenn.-(May 18, 2007)-Cummins Filtration, the leader in filtration, exhaust, coolant and chemical technology for all engine-powered systems, has received notification from the U.S. Environmental Protection Agency (EPA) that its Fleetguard® Closed Crankcase Ventilation (CCV) system has been conditionally verified. The system reduces emissions of certain criteria pollutants when used with Cummins Emission Solutions Diesel Oxidation Catalyst (DOC) and ultra low sulfur diesel (ULSD) fuel. The verification is for the purposes of EPA's National Clean Diesel Campaign.

"The combined CCV and DOC is the latest release in our retrofit product line. This product helps ensure customers and agencies have an even wider choice of options with Cummins Emission Solutions," said Les Freeman, Executive Director of Cummins Emission Solutions Retrofit.

Along with the DOC, the Fleetguard® CCV system was tested under EPA's Environmental Technology Verification (ETV) program. The May 10 verification was issued with specific conditions for additional testing and emissions durability on certain model year engines before final approval. Before product release, the system was tested with 3 million-plus miles of real world on-road validation. This technology is for use on all four-cycle, non-EGR highway, medium-heavy and heavy-heavy duty diesel engines, including turbo-charged or naturally aspirated, mechanically or electronically injected, and manufactured between the 1991-2003 model years. These engines must meet a 5 or 4 g/bhp-hr NOx standard and a 0.25 or 0.1 g/bhp-hr PM standard that were not originally certified with a DOC and not built with a CCV system. Verification details will soon be listed on the EPA's Verified Retrofit Technologies page under both Cummins Filtration and Cummins Emission Solutions.

"This is a giant step forward in the process of receiving full EPA verification," said Cindy Moore, Vice President and General Manager for the Air Technology Business Unit of Cummins Filtration. "We have worked very hard to ensure that the CCV system delivers on its promise to significantly lower PM, HC, and CO emissions and complies with government regulations to ensure a cleaner environment. We are proud to receive conditional verification as we continue our in-use testing program."

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 $715 million on sales of $11.4 billion in 2006. Press releases can be found on the Web at www.cummins.com.

About Cummins Filtration

Cummins Filtration Inc. is a wholly owned business unit of Cummins Inc. and the world's leading designer and manufacturer of air, fuel, hydraulic and lube filtration, chemicals and exhaust system technology products for all engine-powered systems. Cummins Filtration cares about maintaining a cleaner, healthier, and safer environment. Going beyond compliance, Cummins Filtration proactively seeks improvements to products and processes and offers environmentally friendlier product choices for all major engine systems. The company's homepage can be found at cumminsfiltration.com. In North America, customers can call Cummins Filtration Customer Assistance at 1-800-22FILTER (1-800-223-4583) for more information.

About Cummins Emission Solutions

Cummins Emission Solutions is a market-leading global designer, manufacturer and distributor of exhaust aftertreatment systems and devices for the on and off highway medium duty, heavy duty and high horsepower engine markets. With key operations in Columbus, Indiana, Wisconsin, the United Kingdom and South Africa, Cummins Emission Solutions products serve both OEM and Retrofit customers.

Information provided in this release that is 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.

Cummins Filtration Contact
Diane Coleman, 615-366-9744
Cummins Emissions Solutions Contact
Loretta K. Evans, 901-546-5731

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