Navistar will offer Cummins 15-16L power exclusively for EPA 2010

COLUMBUS, Ind.--(BUSINESS WIRE)--June 16, 2008--Cummins Inc., (NYSE: CMI) and Navistar International Corporation (Other OTC: NAVZ) announced that they have extended their engine supply agreement for class 8 on-highway diesel engines through 2013. The agreement provides for the ongoing supply of Cummins ISL, ISM and ISX engines for use in International(R) brand class 8 trucks.

"The North American on-highway markets have long been important to Cummins, as is our relationship with an important customer like Navistar," said Tim Solso, Cummins Chairman and Chief Executive Officer. "We look forward to the exciting growth opportunities this partnership represents."

"Navistar has a long-standing association with Cummins and the ISX engine enjoys significant share in our Class 8 products" said Daniel C. Ustian, Navistar Chairman, President and Chief Executive Officer. "We are pleased that this agreement will extend our relationship through 2013."

"Navistar and Cummins have a strong partnership and history of collaboration in serving our mutual customers," said Ed Pence, Cummins Vice President and General Manager - Heavy-Duty Engine Business. "We have been working closely with Navistar to integrate our 2010 solutions, and this agreement will deliver the right technology to meet customers' needs for operational efficiency and low operating costs, with high performance and reliability."

As part of the long-term agreement, beginning in 2010, Cummins will be Navistar's exclusive supplier for 15- and 16-liter big bore diesel engines (Cummins ISX) for Navistar's International(R) trucks in North America.

As previously announced, Cummins will meet the 2010 EPA requirements on its heavy-duty engines without aftertreatment for oxides of nitrogen (NOx).

Cummins engines in 2010 will incorporate an integrated technology solution that includes the XPI High Pressure Common Rail (HPCR) fuel system, next generation Cooled Exhaust Gas Recirculation (EGR), advanced electronic controls, proven air handling and the Cummins Particulate Filter. Cummins leads the U.S. on-highway truck market with cooled EGR technology, which reduces emissions and NOx. The next generation EGR does not add complexity to the vehicle, yet power, torque, fuel economy and maintenance intervals will remain the same as today. Cummins engines will be fully certified and compliant to the near-zero EPA 2010 emissions standards.

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 approximately 190 countries and territories through a network of more than 500 company-owned and independent distributor locations and approximately 5,200 dealer locations. Cummins reported net income of $739 million on sales of $13.05 billion in 2007. Press releases can be found on the Web at www.cummins.com.

About Navistar

Navistar International Corporation (Other OTC: NAVZ) is a holding company whose wholly owned subsidiaries produce International(R) brand commercial and military trucks, MaxxForce(TM) brand diesel engines, IC brand school and commercial buses, and Workhorse(R) brand chassis for motor homes and step vans. It also is a private-label designer and manufacturer of diesel engines for the pickup truck, van and SUV markets. The company also provides truck and diesel engine parts and service. Another affiliate offers financing services. Additional information is available at www.Navistar.com/newsroom.