| December 1963 - December 1968|No. 2000 preserved by the Pilbara Railways Historical Society
Nacionales de Mexico 610, former Delaware and Hudson 610 preserved at the Yucatan Railway Museum in Mexico
Ferrocarriles Nacionales de Mexico 606, former Ferrocarril de Pacifico 606 preserved at the Yucatan Railway museum in Mexico
ALCO Century 628 Wikipedia
The ALCO Century 628 was a six-axle, 2,750 hp (2,051 kW) diesel-electric locomotive. A total of 186 C628s were built between December 1963 and December 1968. There were 135 C628s built for U. S. railroads, 46 C628s were built for Mexican railroads and five C628s for Australia.
The C628 replaced the C624 (DL600C/RSD-41) as a part of ALCO's 'Century' line of locomotives. The C624 was intended to replace the earlier RSD-15 model, but was never built. The C628 was offered instead in August 1963.
Hamersley Iron purchased five to haul iron ore services in the Pilbara region of Western Australia. Two were built in Schenectady and three by AE Goodwin in Sydney. All had been retired by 1982 with one preserved on a plinth in Dampier.
SP purchased twenty-nine they got delivered 1965