The ALP-45DP is a type of single cab dual-mode locomotive built by Bombardier Transportation for use by NJ Transit.As of May 2015, the locomotives are providing service on the Morristown Line, Montclair-Boonton Line, Raritan Valley Line, Northeast Corridor Line, and the North Jersey Coast Line providing a one-seat ride (OSR) into New York Penn Station. The ALP-45DP's also serve on the Main Line, Bergen County Line, Pascack Valley Line, and occasionally on Metro-North Railroad's Port Jervis Line. They are numbered 4500 upwards to 4534. They have replaced all GP40FH-2 and F40PH-2CAT locomotives (except those owned by Metro-North), as well as a majority of the GP40PH-2 locomotives.
The first locomotive was officially unveiled at Newark Penn Station on May 11, 2011