Gas Cap Just Purchased

[StevenF]

Dear Members,
I just purchased this gas cap.  It all points to OEM but I wanted your opinions as well

Lastly, do you think I need a new cork ring? : https://www.authenticclassics.com/mercedes-230sl-250sl-280sl-Gas-Cap-Seal-Ring-p/auth-002502.htm

All my best,
Steven

[Pawel66]

The part number suggests it was a gas cap with lock number undefined and should have been stated while ordering. Should be Ymos.

I think the part is original.

Just that it is not for 280SL - I would have thought that for 280SL cap should have a key hole for symmetric key as 280SL were one key cars (as of 250SL number 043 002980).