The Siemens Charger is a family of diesel-electric passenger locomotive designed and manufactured by Siemens Mobility for the North American market. Three models are being produced: the base SC-44 locomotive designed to haul traditional passenger cars in inter-city rail service, the SCB-40 locomotive designed to pair with the Siemens Viaggio Comfort passenger car trainset in inter-city rail service, and the ALC-42 locomotive designed to haul traditional passenger cars in long distance railservice.

The first production SC-44 unit was unveiled on March 26, 2016. The first SC-44 unit went into Amtrak revenue service on August 24, 2017, followed by the SCB-40, which inaugurated Brightline service on January 13, 2018

MARC announced in August 2015 that it was seeking $58 million to purchase eight locomotives to replace their aging electric powered AEM-7 units, with deliveries planned for late 2017.^[​40] The purchase was approved by the Maryland Board of Public Works on September 16, 2015.^[​41] The MARC order uses part of the Amtrak state-corridor options.^[​42] The first MARC Charger was shipped from the Siemens factory in early December 2017, and began testing in mid-January 2018.^[​43].