SC-44 Diesel Electric Locomotive

Prototype Information

Siemens developed the SC-44 Charger to meet the strict Tier 4 emissions standards for North American passenger rail. The company builds these locomotives at its factory in Sacramento, California, specifically for high-speed state-supported corridors. The SC-44 debuted in 2016 and began pulling Amtrak trains in 2017, starting in the Midwest. It uses a 4,400-horsepower Cummins engine and can reach speeds of 125 mph. This power and speed make it much more efficient than the older locomotives it replaced.

The locomotive has quickly become the primary choice for passenger agencies across the United States. Beyond Amtrak, commuter lines like Metrolink in California and MARC in Maryland use the SC-44 to power their fleets. Siemens also adapted the design into different versions, such as the ALC-42 for long-distance national routes and a streamlined version for Florida’s Brightline service. Its lightweight design and advanced braking systems help railroads save fuel while reducing air pollution. The Charger now serves as the modern backbone for rail travel from coast to coast.