Correct, those look like GG Schmitt. Mine is a late 80's 3600 and the original part was GG Portlight #97002. I was able to order a new gasket last year. That portlight has been discontinued and its replacement us 90002C. But if you call GG Schmitt, they can get you what you need.
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Joined: Jun 2019
Home Port: NY, Long Island, South shore
Vessel Info: 1998 4000 Express, Cat 3208
Posts: 58
Threads: 9
Likes Given: 5
Likes Received: 15 in 10 posts
Joined: Jun 2019
Home Port: NY, Long Island, South shore
Vessel Info: 1998 4000 Express, Cat 3208
01-16-2021, 12:06 PM (This post was last modified: 01-16-2021, 12:07 PM by emarrero.
Edit Reason: Adding
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I'm trying to find the same thing for a new-to-me 1998 4000 Express. Looks like the retail area of G.G. Schmitt's site isn't up. It says it will be up in 3-6 weeks. I did ring them up (use the FL number) and they took my name for some kind of waiting list. I hope everything sorts out with them because 3 out of 4 portlights on my boat are stuck to the gaskets and the screens are embarrassing.