LOUISVILLE, Ky. (November 27, 2007) - Cummins Inc. (NYSE:CMI) today introduced a new 650-hp diesel engine for luxury motorhomes, the ISX 650, at the RVIA (Recreational Vehicle Industry Association) show. The ISX 650, with 1950 lb-ft of torque, represents a new level of performance in the premium motorhome market.


The Cummins ISX delivers superior performance through the use of its in-house core technologies, including Cummins advanced electronic controls, patented VG Turbo, high-pressure fuel system, combustion technology and exhaust aftertreatment. The new ISX 650 is fully integrated with the Allison 4000 MH model automatic transmission. The Allison 4000 MH model is rated up to 650 horsepower and 1950 lb-ft of torque. This rating and transmission integration demonstrates the ongoing collaborative efforts between Cummins and Allison Transmission.


According to Mark Conover, Cummins Director - RV Business, "We've listened to motorhome customers and understand that horsepower and performance are top of mind. The ISX 650 will provide exceptional acceleration, improved ability to climb steep grades, better downhill speed restraint with superior braking horsepower and all-around first-rate performance."


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.