The Century 424 was a four-axle, 2,400 hp diesel-electric locomotive. 190 were built between April 1963 and May 1967. Cataloged as a part of Alco's Century line of locomotives, the C424 was intended to replace the earlier RS-27 model and offered as a lower-priced alternative to the C425. Montreal Locomotive Works also built this locomotive as MLW Century 424.
 
Curiosities:
 
Wabash Railroad B900-B906: Originally supposed to be NDM 8100–8106, but the order was canceled and the units were sold to Wabash. They were prohibited from being used as lead units due to the controls being labelled in Spanish. Acquired by N&W at merger.
 
ALCO C424 - Wikipedia - American-Rails