After an absence of 12 years, Electro-Motive Diesel Inc. (a subsidiary of the Progress Rail Services Corp. division of Caterpillar Inc.’s Rail Division) has reentered the passenger locomotive market.

Caterpillar Inc. on Aug. 31 marked the 100th anniversary of EMD®. Founded as Electro-Motive Engineering Corporation, EMD is now a product brand of Progress Rail, a Caterpillar company. (Courtesy of ...