From the list at IBMWR.org, with a few annotations from me (wmax351).
VW clutch plate for K clutch
Date: Mon, 27 Oct 1997 09:28:42 -0500
From: Mark S. Hamlin <
mham001@ibm.net>
I once made a living buying/selling VW's in my driveway also. When the set screw fell out of my gear shift lever on my K bike setting off a series of events that led to a complete tear down I noticed that the clutch plate ($100+) is nearly identical to a 40 horse VW. I think the 180 mm. $20. Made by Sachs, Brazil.
The one difference was the pad thickness. Would have required riveting. I decided I didn't need a new one anyway.