Help Identifying Mercruiser Bravo 3 outdrive

I plan on changing the stern drive oil this winter on my Bravo 3. In advance of this, I want to order the sealing washer for the Oil Fill/Drain plug and the sealing washer for the Oil Vent Plug. I wanted these in case the others were bad and don't want to stop the project.

Here is the pertinent info;
Drive serial #: OW261853 Duo Prop
Engine serial #: OW066924
OPT MERC 496 MPI B-3 (375)
Boat is a 05 Glastron GX255

The problem when going to the Mercury Parts page under STERN DRIVE/DRIVES is the drive serial number can sort of be found under Bravo 3, Bravo X3, and Bravo XR3. So I am not sure which model I have. Any help appreciated.

All Merc drain plug gaskets are the same.
When you change the gear oil you change the gaskets.

Ayuh,.... What Chris said,.... Those gaskets are All the same,....

Screen shot below from my boat parts spreadsheet for my 2004 Bravo 3 (Transom Serial Number: 0W114337, Drive Serial Number: 0w223196)

Your choice of gasket is either the rubber coated metal gasket(Yellow in color) Or the Blue Fiber Gasket.

Since you change the gaskets every time you change the oil, the choice is up to you.

Both gaskets do the same job.