This is the seal that holds the glass into the frame on the quarter lights.
Correct for all split bus cab door 54-67. And Bay window cab door with opening 1/4 light, also rear opening 1/4 lights in Bay windows.
This seal comes on a roll, as used by VW in the factory, not an easy seal to fit, but we prefer to do it the way VW did it, rather than fit a preformed seal that will not shape to the catch as well as it could. For fitting tips please give us a call, just needs patience and a few simple tools to make a nice job.