Tascam TSR 8 Capstan motor NM01 R4322-74531A

This is the motor and pulley used in the TSR-8 but they used a motor with the same number on the 388 but one 388 I saw had a different back part so unless yours looks like this I don't believe it will work.

Comes with a 30 day warranty

They used a similar one in a few of the Fostex machines with a slightly different number