Test Cap for GTI???

[S Padre]

Hello all,
I am looking for p/n 529 021 991 which is the test cap for cooling system on a 2012 GTI 130. I did find one closed thread that had this part number.... What I can't find is a source to purchase this. Anyone know? Or is there a source for an aftermarket?

Thanks in advance for the wisdom!

 

[S Padre]

Bump, Any other ideas on how to do a press test on cooling system? I know there are after market caps available. Anyone have luck using one of those?

 

[S Padre]

Just following up. I was able to purchase one from a dealer. Not sure why but I was thinking this would be a "dealer only" item... Also got a test cap for the pump...