Komatsu America Corp. is pleased to announce the introduction of its new EPA certified Tier 4 Final diesel engines, built on Komatsu’s progressive engineering improvements to reduce emissions.

In addition, most machines will see reductions in fuel consumption below the already low levels that have long been a hallmark of the Komatsu product line. The Tier 4 Final technology will be integrated into Komatsu America’s construction and mining engines ranging in size from 3.3 to 46 liters and start commercial production in January 2014.

New regulations effective in 2014 require the reduction of NOx emissions to one tenth or below levels required by preceding regulations. Komatsu’s Tier 4 Final solution builds on the proven and reliable Komatsu technologies utilized for Tier 4 Interim engines. Examples of these Komatsu-developed technologies include: next-generation high-pressure common rail fuel injection (HPCR) system; high-efficiency exhaust gas recirculation (EGR) system; Komatsu Variable Geometry Turbocharger (KVGT); and Komatsu Diesel Particulate Filter (KDPF).

These Komatsu Tier 4 Interim technologies have been well received by customers in North America. In addition to refining these technologies through Komatsu’s continuous improvement activities, Komatsu has also developed a newly designed proprietary Selective Catalytic Reduction (SCR) device. This Tier 4 Final solution with the addition of SCR provides a high amount of passive regeneration of the KPDF with minimal impact on machine operation and production.

All Komatsu Tier 4 Final construction machines come with Komatsu CARE®. Komatsu CARE® provides scheduled factory maintenance for the first 2,000 hours or three years, which includes a 50 point inspection at each service, and two complimentary KDPF exchanges in the first five years.

Over the years Komatsu has consistently engaged in the research, development, manufacture and improvement of diesel engines. Komatsu will continue to leverage in-house development and manufacturing capabilities for key components, such as hydraulic devices and control systems, in order to reduce environmental impact and improve fuel economy.

About Komatsu America Corp.

Komatsu America Corp. is a U.S. subsidiary of Komatsu Ltd., the world’s second largest manufacturer and supplier of construction and mining equipment. Komatsu America also serves forklift and forestry markets. Through its distributor network, Komatsu offers a state-of-the-art parts and service program to support the equipment. Komatsu has proudly been providing high-quality reliable products for nearly a century.