New top track pin

Thanks for reaching out to us. I'm afraid I don't recognize this pin assembly. It looks to be a Float-Away brand part like our 21-022, 21-023, or 21-024, but the configuration is different than all three types we carry.

Would it be possible to see yours removed from the door? Can you also give me precise dimensions? I specifically need to know the diameter of the pin, the diameter of the black sleeve, and the diameter of the nylon guide that goes in the track. 

Please let me know if that's possible and we can look into possible alternatives for you.