In 1991, ConnDOT purchased 10 Bombardier Shoreliner III coaches, similar to ones already used on the Danbury Branch and Waterbury Branch, and leased three additional diesel locomotives: two EMD GP38s and one EMD GP9. In 1994 Amtrak rebuilt 11 of ConnDOT's surplus SPV-2000 diesel railcars into coaches, dubbed "Constitution Liners." In 1996, SLE took delivery of six remanufactured GP40-2H diesels to replace the entire motive power fleet. These were supplemented in 2005 with 8 GE P40DC Genesis diesels leased from Amtrak. ConnDOT purchased the P40DCs in 2008. To augment capacity ConnDOT acquired 33 Mafersa coaches from the Virginia Railway Express in 2004. These began entering service in 2006, displacing the Shoreliners and Constitution Liners.