Imparts oil drain valve p/n confusion

[schulz@tif623.ED.RAY.COM (Peter Schulz)]

Hi Listers:

I ordered the snazzy oil drain valve from Imparts.  The one
that they sent me, p/n f106, is too small  (diameter).  It looks
to me the size of the standard VW oil pan plug (about 1/2 inch).  

Does anyone have the real part number?  Imparts said that the
F106 was the correct number, however the package said ;
"for all audi except Super 90 and V8".

The drain plug for my car is about 25.4 mm (1 Inch) in diameter.

Thanks!

Peter Schulz
1990 Coupe Quattro  ( 20V)
schulz@ed.ray.com