Draft:Siemens SC-42DM
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The SC42-DM is a series of electro-diesel (dual-mode) locomotives operated by Metro-North Railroad since 22 Sep 2025, and is planned to enter service with Long Island Railroad[2] between 2027 and 2030.
| Siemens SC-42DM | |||||||||||||||||||||||||||||||||||||
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 Metro-North SC42DM No. 306 pushing a Hudson Line train out of New Hamburg, New York. | |||||||||||||||||||||||||||||||||||||
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| 301-310 in service, 311-314 delivered to MNRR, all others being built or delivered | |||||||||||||||||||||||||||||||||||||
The series is being built by Siemens under their Charger Locomotive brand.
History
The SC42DMs were ordered to replace all of Metro-North's P32AC-DM locomotives, most of which are nearing the end of their useful service lives. Metro-North plans to cut emissions of diesel stock by 85%[3] after retiring all older locomotives.
On September 22, 2025, SC42-DM #301 made its first run on the Hudson Line. Due to the Hudson Line requiring diesel service north of Croton-Harmon, all SC42DMs in service are mainly assigned to the route, but can be assigned to Harlem Line and New Haven Line services when needed.