Oil injection bushing updated version

[FiveStar]

Hey guys I ordered this oil injection bushing for my 90 hp Merc three cylinder. Was this the bushing that was updated? Is it supposed have a mark on the flange, this one doesn't. Perhaps I got an old part? Thanks

Part number is 23-17597

http://i601.photobucket.com/albums/...0-77E5-4A09-9211-0F2B4AA30FCD_zps7ywpyvgh.jpg