I bought a couple the other day at Kmart (of all places - $1.78 for 2!) that
seem to fit OK and look the same to me.  They're Philips #89 BC
Courtesy/Dome/Trunk lights.  Package says they replace #158 - can't read
what is actually on the bulb, but I think this link to the Philips catalog
describes them.

http://www.lighting.philips.com/nam/product_database/mini/displaymini.php?id
=33

hth
Graham
90 GL auto country homes camper

Joe Pallen wrote:
>
> I went to the local FLAPS (all three of them) and cannot find a
> replacement bulb for my tail light on my 87 syncro.  They order them but
> when I go to pick them up they are always the larger brake, turn, and
> back up lights, 21W.  I need the small 12V 5W tail light.  Does anyone
> have bulb or VW part number?
>
> Thanks,
>
> JoeP