The ALCO Century 430 was a four-axle, 3000 horsepower (2.25 MW) diesel locomotive of the road switcher type. 16 were built between July 1966 and February 1968. Cataloged as a part of ALCO's 'Century' line of locomotives, the C430 was an upgraded version of the C425 model. Since 1992, 5 C430s have remained in existence.