EMD produced more than 400 ... As time passed, some commuter railways F40PH's were converted to cab control units, with a manned powered locomotive on one end and a control unit for the return ...

Introduced by EMD in 1968, the model sold 1,243 units ... and mechanically similar, F40PH locomotives on the roster until the new GE P40 "Genesis" diesels could be delivered in 1993.