For KLW, Cummins, “the next step in level 4 power renewals”

Written by

William C. Vantuono, editor

KLW (Knoxville Locomotive Works, Inc.) and Cummins Inc. announced on March 6 the completion of their first KLWX 4400 ACT4, a rebuilt line haul locomotive equipped with a certified 4,400 hp Cummins QSK95 main engine EPA Tier 4. The locomotive is currently in service with CN, where it is undergoing reliability growth testing.

The KLWX 4400 ACT4, described as “the next step in Tier 4 locomotive re-engining programs”, uses an AC Power & Automation traction system from CAF as well as components from other railway industry suppliers. The locomotive “builds on successful sales of KLW EPA Tier 4 and CARB certified locomotives across the United States,” the companies said.

“While the industry has largely focused on developing new technologies to meet 2030 sustainability goals, KLW has developed solutions to help Class I operators move closer to their 2030 sustainability commitments. and 2050,” said KLW President Pete Claussen. “The combination of a Cummins QSK95 Tier 4 engine and SCR after-treatment system, along with other locomotive components, provides better fuel economy and greater reliability compared to other power sets Tier 4.”

“We are excited to showcase our clean diesel technology in freight locomotives,” said Regina Barringer, Cummins Global Managing Director, Rail and Defence. “Many rail operators are committed to achieving net zero emissions, and we are confident that the QSK95 will play an important role in helping rail operators improve emissions from their current and future locomotive lineups.”

KLW and Cummins anticipate commercial availability of the KLWX 4400 ACT4 in the second half of 2023.

KLW “specializes in re-engining, overhauling, overhauling, repairing and upgrading a wide variety of traditional locomotives. With customers spread across the United States, KLW’s make-up offerings are EPA Tier 4 certified and CARB verified. KLW is affiliated with the Gulf & Ohio Railways, Inc. family of shortline railroads and has performed work on approximately 1,000 locomotives for customers ranging from Class 1 railroads to small industrial sites.

Cummins Inc., “a global energy leader, is a company of complementary business segments that designs, manufactures, distributes and services a broad portfolio of energy solutions. The Company’s product line includes diesel, natural gas, electric and hybrid powertrains and powertrain-related components, including filtration, aftertreatment, turbochargers, fuel systems, control systems, air handling systems, automated transmissions, electric power generation systems, batteries, electrified power systems, hydrogen generation products and fuel cells. Headquartered in Columbus, Indiana, since its founding in 1919, Cummins has employed approximately 57,800 people committed to powering a more prosperous world through three global corporate responsibility priorities critical to healthy communities: education, environment and equal opportunities.

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