That, plus the gradual change to locomotive-generated ... A majority were returned to EMD where components from 132 units were recycled into Amtrak's new HEP-equipped, four-axle F40PH locomotives.

Review of rail passenger service between Chicago and Florida including the return of the Amtrak Floridian in 2024 ...

Amtrak would produce 14 F40M-2F locomotive that featured a number of changes, including removal of head-end power, installation of a larger fuel tank, AR10 alternator, and regeared traction motors ...