That's the one! The build date should be more recent but that is really not important as this is a very simple circuit using diodes to do the dirty work.
Again, You really don't have to stock parts as this is a very common replacement part as stocked by Harley-Davidson. You might get lucky! The stock C.R. Electric unit may just do the job without a quibble, or not...
Just remember to use the Voltmeter built-in on the speedometer to check up on it. It will become apparent.
