silicon pop culture!

I lost the two stoppers on the rear of hinge. Now when I open the screen all the way, I will hear a large click sound. I did some research and found it is 4-673-468-04. However, I also found it is 4-673-468-02. They are for different models in the TR serie. Which one should I have. Also, I am living in Europe and cannot order from US. Is there anyone who is selling parts willing to sell me this part. Thanks.

btw, i attached a photo of the part I am talking about.