The Class 376 Suburban Electrostar is a model of electric multiple-unit passenger train manufactured by Bombardier Transportation at their Derby works. It is part of the Electrostar family, which are the most common EMUs introduced since the privatisation of British Rail. The units were ordered by Connex South Eastern, introduced in 2004/2005 by South Eastern Trains originally to replace Class 465 and Class 466 to be transferred to the Outer Suburban services to Kent.