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Diesel Engine meets Tier 2 emissions requirements.

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January 3, 2007 - Designed for minimal noise and optimal fuel economy, power delivery, and idle stability, QSK38 employs in-cylinder combustion system that meets Tier 2 NOx levels. Modular Common Rail fuel system enables full-authority electronic control over fuel timing, quantity, pressure, and delivery rate shape. Supplied in 38 L, V12 configuration with single-piece FCD pistons, engine is rated from 900-1,500 hp and provides up to 4,570 lb-ft torque at 1,000 rpm.

Cummins Launches Tier 2 QSK38 Engine

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Cummins Engine Co., Inc.
P.O. Box 3005
Columbus, IN, 47202 3005

Press release date: October 18, 2006

MIDLAND, Texas. - Cummins Inc. (NYSE:CMI) launched the Tier 2 QSK38 at the Permian Basin International Oil Show in Midland, Texas. Building on the recognized success of its V12 38-liter KV Series, Cummins QSK38 has taken the legendary durability of the base engine and enhanced it with the proven technology of the Cummins Quantum System electronics and Modular Common Rail fuel system found on its Tier 2 QSK50 and QSK60 engines. This performance and technology upgrade ensures not only Tier 2 emissions compliance but also quieter operation, better fuel economy, smoother power delivery and better idle stability.

The QSK38 engine, rated 900-1500 hp (671-1119 kW), provides up to 4570 lb-ft (6197 N"m) of torque at 1000 rpm. It is ideal for the durability, reliability and power density requirements of high-hour and hard duty cycle applications such as mud pumps, SCR drill modules, mining excavators and haul trucks. The QSK38 offers a high torque reserve with a torque rise of over 12%. Cummins ratings for Oil and Gas applications are at 1200 rpm, while there are 1800-1900 rpm ratings for mining and other industrial applications. The QSK38 shares 70% of its parts with the KV 38-liter base engine, and with a track record of over 1,000 38-liter engines produced annually, proven reliability is assured every time.

"We've taken the long-proven Cummins KV 38-liter engine to the next level in performance and provided a high level of engine sociability along with emissions compliance. Cummins continuous investment in our proven products and technology goes a long way in enabling our customers to achieve the highest uptime at the lowest possible cost at every emissions level," said Jim Trueblood, Vice President of Cummins High Horsepower Engineering. "Cummins is constantly focused on providing engine platforms, customer support and technology to the High Horsepower markets better than anyone else."

The QSK38 utilizes the Cummins Modular Common Rail fuel system, a design that enables full-authority electronic control over fuel timing, quantity, pressure and delivery rate shape. Precision control over the number of injection events enables optimum performance and dramatically reduced engine noise as well as emissions compliance. Cummins has been able to optimize the in-cylinder combustion system to meet Tier 2 NOx levels without increasing displacement or making significant configuration changes which means minimal installation impact.

The 38-liter V12 configuration features many durability-enhancing components. Proven single-piece FCD pistons allow for high cylinder pressures and increased power output, contributing to more than a 10% increase in life-to-overhaul while reducing maintenance costs. When upgraded performance parts are coupled with Cummins fully sealed foam-filled wiring harness and fail-safe connectors, and an upgraded ECM that is isolated from detrimental vibration loading, high availability is assured.

Cummins Advanced Engine Monitoring (AEM) system provides a high level of visibility into the engine's performance in the field with extended data logging capturing operator beneficial information on fuel consumption, duty cycle and load factor, operational trends, fault snapshots, and shutdown information. But more than providing usage information, the AEM can integrate with equipment-based information systems and also provide a means for rapid troubleshooting.

The QSK38 engine is backed by Cummins industry-leading Mobile QuickServe® program. Cummins QuickServe offers factory-certified technicians the most sophisticated diagnostic and repair tools in the industry and the largest international parts and service network of any engine manufacturer.

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 or
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