From 1964 to 1965, the EF65 500 series appeared as a towing express train for the 20 series sleepers and Koki 10000 series high-speed freight trains based on the EF60, which was the flower train of the Tokaido Main Line at that time. It is called P type for passengers and F type for freight, and is characterized by different equipment. Also, due to a shortage of locomotives for passengers, 8 cars from the EF65 0 series were modified and incorporated.