The R9 solenoid has 4 external terminals and the R11 has 2 so that is the easy identification. If yours has the correct 4 terminals and you can engage the ball into the pawl slot, then chances are it's the correct part ---
We know almost anything is possible when it comes to 60+ years of work by sometimes questionable mechanics. If someone rebuilt the solenoid and swapped parts --
IF an R11 plunger will fit inside an R9 solenoid -- then maybe. I don't know if the parts are interchangeable and thought we had measured earlier. If not, BDeB posted a photo of a relaxed R11 end being measured here
packardinfo.com/xoops/html/modules/newbb ... .php?post_id=112210#forumpost112210 As he mentions, that same measurement taken from the same location on a relaxed R9 solenoid (without the R9 spacer in place) is 2 1/4".
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