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ALCO251-12 H0 N XL L M4

The Alco 251 diesel engine was developed by the American Locomotive Company to replace the 244 and 539. The 251 Prime mover was Alco’s best selling prime mover. In 1954, the 251 went into production with the inline-6 at Auburn, New York. The next year production of the V-12 followed. Samples of the 12Cyl versions were found in: RS-11, RSD-12, RS-18, RS-36, FPA-4, FPB-4, DL500B, RS-32, C420, MLW M420TR, M420W, DH643 and HR412
Ultimately a refined and successful design, the 251 outlived its more…