No RPL looks exactly like original. My guess is that the timer is not what needs to be replaced. Until I get a wiring diagram or photo of the wiring on another M4T I won't be able to know for sure.
I just joined the forum. I have a problem with my Macap M4 grinder. After about 14 years my M4 has stopped working. Mine had a timer built in. You twist the knob to the number of minutes you'd like it to run, after the time set, it shuts itself off. The timer switch was always firm when turned...