Is it possible that those parts in your picture are both from North American models 617turbo and 617 n/a and the euro 617 is different than both of those in your picture? The one on this 617 euro motor looks smaller than the ones in your picture I just looked at the euro and it seems to me that this euro one has a thicker crank balancer and a smaller diameter balancing disc. I wonder if someone tried to use a north American model 617 balancer assembly to fix your Euro 617. I can confirm the North American model 617 N/A in the A.M.... but I am pretty sure that the balancer on that one is different than this euro part. Are you sure that you have a Euro motor?