I have been researching the 'Net for power steering pumps, and found
the Beck/Arnley online catalog. In their catalog, when I got to the P/S
Pump for the Vanagon, I discovered that their catalog cross references
other vehicles on which a part fits or works. This is a very handy thing.

In this case:

Beck/Arnley P/S Pump Part#108-5172
Vanagon - 1983 thru 1991
Audi model 80 - 1988 thru 1990
Audi model 90 - 1988 thru 1990

This is the same ZF pump that was original equipment, just reman'd by
Beck/Arnley. So if you are stuck, you could used the one designated for
the Audi.

For what it's worth, my experience with Beck/Arnley remanufactured parts
has been good.

John

--
John Rodgers
Clayartist and Moldmaker
88'GL VW Bus Driver
Chelsea, AL
Http://www.moldhaus.com