The locomotives of the Dundalk, Newry and Greenore Railway were all 0-6-0ST, with inside cylinders, to the designs of LNWR Chief Mechanical Engineer, John Ramsbottom, the first three locomotives being built by the LNWR Crewe Works, England, in 1873. Later, to work the extension of the line to Newry, two similar locos were built at Crewe in 1876. The sixth and final locomotive was added in 1898. The locomotives were consecutively numbered, in order of building, from 1 to 6 and also carried names. Locomotive No.5 Carlingford was withdrawn in 1928 and scrapped.