Caterpillar C9 with ACERT Technology for 2007 Certified by EPA

[DriVer]

For North American Release: March 22, 2007
Release Number: T05PR07

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Caterpillar Inc.
Global On-Highway
P.O. Box 610
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Caterpillar® C9 with ACERT™ Technology for 2007 Certified by EPA

On March 13, 2007, Caterpillar Inc. received 2007 on-highway certification from the U.S. Environmental Protection Agency (EPA) for the C9 engine equipped with ACERT™ Technology. This technology positions Caterpillar to meet future EPA emissions regulations and provides a long-term emissions solution for the global on-highway engine market.

The last engine to be submitted to the EPA for certification, the C9 is the final engine in Caterpillar's on-highway line to be certified and follows the previous certifications of the C7, C13 and C15 in November, 2006.

"These certifications demonstrate that engines with ACERT Technology for 2007 are ready to serve our customers in the North American trucking industry," said George Taylor, director and general manager, Global On-Highway Business at Caterpillar. "ACERT Technology has set a new industry standard for clean diesel technology, meeting the clean air goals we all support while maintaining the reliability, durability and minimal owning and operating costs that Caterpillar engines traditionally have provided."

The new C9 provides heavy duty power in a lightweight package. A popular choice with vehicle owners who operate heavy-duty vocational trucks, it comes from a proven line of Cat® engines that have excelled in vocational applications. The C9 also is used in the urban bus market. It will be in production during the second quarter of 2007.

The 9.3-liter, 1,650-lb. C9 features expanded horsepower ratings (285-425 hp), increased torque ratios (890-1,350 lb.-ft. of torque @ 1,400 rpm) and a new compression brake. A new Cat Common Rail Fuel System also optimizes on-highway performance with injection flexibility to meet 2007 emissions standards as it increases fuel economy by up to four percent.

ACERT Technology relies on four basic systems to lower emissions: air management, precision combustion, advanced electronics and effective aftertreatment. These four systems work to decrease particulate matter, oxides of nitrogen and hydrocarbon emissions while preserving the engine's reliability and durability, which keeps owning and operating costs low.

For more than 81 years, Caterpillar Inc. has been making progress possible and driving positive and sustainable change on every continent. With 2006 sales and revenues of $41.5 billion, Caterpillar is the world's leading manufacturer of construction and mining equipment, diesel and natural gas engines and industrial gas turbines. The company is a technology leader in construction, transportation, mining, forestry, energy, logistics, financing and electric power generation. Caterpillar is the leading manufacturer and supplier of truck and bus engines in the combined medium and heavy duty categories in North America, holding the leading position in engine shipments to vehicle manufacturers since 1999. More information is available at www.cattruckengines.com.