Cummins Announces Certification of 2007 On-Highway Engines.

COLUMBUS, Ind. -- Cummins Inc. (NYSE:CMI) announced today that the U.S. Environmental Protection Agency (EPA) has certified the Cummins Heavy-Duty and MidRange truck engines for 2007. Full production of the new engines begins in January, 2007.

The 2007 certified Cummins truck engines include the Heavy-Duty ISX and ISM, as well as the MidRange ISL, ISC and ISB. The engines are certified and compliant for 2007, using Cummins proven cooled Exhaust Gas Recirculation (EGR) technology across the entire product line. To meet the more stringent 2007 emissions standards, which reduce particulate matter by 90 percent and also require a significant reduction in oxides of nitrogen (NOx) from 2004 limits, Cummins has added an integrated Cummins Particulate Filter and a crankcase ventilation system to the engines.

"With more than 400,000 cooled-EGR engines on the road, and well over 40 billion miles of experience, Cummins customers can be confident in the reliability and durability of these engines," said Jim Kelly, Cummins Vice President and President, Engine Business, "We are confident in the customer advantages provided by our 2007 engines and emissions solution. Field testing and limited production units have demonstrated the performance, fuel economy and maintenance intervals that will meet and exceed customer expectations.

"Cummins 2007 engines will be available in all major equipment manufacturers' vehicles, from heavy- and medium-duty trucks, to buses, motorhomes and other vocational and specialty vehicles," Kelly added. "The vote of confidence from our original equipment manufacturer customers to engineer Cummins into their vehicles - in many cases as the exclusive, non-proprietary engine - means that our mutual customers can also be confident in Cummins '07 engines."

The entire line features fully integrated electronic controls, with a single ECM (Electronic Control Module) that controls the engine and aftertreatment. All engines will use the patented sliding-nozzle Variable Geometry Turbocharger (VG Turbo), made by Cummins Turbo Technologies, which features an electric actuator for 2007 with faster response and improved precision in adjusting airflow to the engine.

The Cummins Particulate Filter, designed and manufactured by Cummins Emission Solutions, includes a diesel oxidation catalyst (DOC) and a diesel particulate filter to reduce particulate matter by 90 percent. The DOC fully optimizes the regeneration capability of the particulate filter, a critical aspect for maintaining fuel economy comparable to today's engines. The crankcase ventilation system features the Fleetguard[R] coalescing filter, which captures and filters crankcase emissions, and returns oil directly to the sump. The coalescing filter is a simple and proven solution for crankcase emissions, with no moving parts or additional electric actuation.

Full production on all engines begins Jan. 2, 2007. In order to be prepared for the anticipated MidRange engine share growth and the expected increase in Heavy-Duty engine demand by the end of first quarter 2007, Cummins intends to retain its entire permanent workforce at all of its North American engine manufacturing plants.

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 cummins.com or everytime.cummins.com.