I'm getting ready for a planned refresh/overhaul on my 91 2.1 wbx.  A year
or so ago I read somewhere where someone installed an oil temperature sender
on the rear of the engine where the grey oil pressure sender is currently
located.   I'm considering moving my oil temp sender from the oil drain to
that location.

Does anyone know of the sender p/n or the thread size of the adapter plug in
the case that accommodates the pressure sender?  I wrote it down a year or
so ago but cannot find where I put it.

Thanks, Bob C