Passenger pioneer

Passenger pioneer

By Brian Schmidt | September 29, 2021

| Last updated on August 8, 2025


Silver and black diesel locomotive with red nose outside brick building
Amtrak No. 583 is a 3,000-hp, six-axle EMD SDP40F. The model was the first new diesel locomotive purchased by Amtrak in the 1970s. It has a different side panel arrangement and lacks the front platform of the earlier FP45. Jim Hediger photo

Passenger pioneer

Amtrak No. 583 is a 3,000-hp, six-axle EMD SDP40F. The model was the first new diesel locomotive purchased by Amtrak in the 1970s. It has a different side panel arrangement and lacks the front platform of the earlier FP45. Jim Hediger photo

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