So. I'm not used to having a car this delicate. This is my 6th G50 Q45. This one is... well, its museum worthy so I'm afraid to even touch it. A week in to ownership ive replaced the alternator. I would not like to talk any more about that. Antenna is replaced. Fuel pump pending replacement. Noticed the liner on the sunroof is sagging and given the condition of the interior. It needs attention NOW. I've swapped the vh45 before. Done everything mechanical to these early q's. But the sunroof liner? Damn. Need help. Is the liner even unavailable brand new? Been surfing JDM sites for years and ever seen one for sale.

Title says gasket, but your description sounds like the fabric on the interior? Maybe try an auto upholstery shop? Is it blue like the seats, or other (just curious, never seen a blue interior G50).

The weather stripping/seal. To prevent rain from entering. The headliner and all non other leather pieces are all like a lighter blue color. Was a long night that night. My wording was a little inaccurate

Ah, got it. If the rubber is just aged and could be cleaned/rejuvenated, I'd suggest the "1Z" (Einzett) purple bottle rubber conditioner. It does a good job in my experience of 'plumping' up the rubber and making it nice and slick. But I'm guessing yours is torn since you are asking about new. If you are not finding it on your JDM parts sites, then I'm not hopeful you'll find one stateside. Possible that a Z32 part might be usable with some massaging? Those seem much more plentiful.....

Have you tried a auto glass replacement shop? Those gaskets are fairly universal, the only difference is the Q45 doesn't have a glass roof. I guess it is technically a sunroof, where as everyone else has a moonroof. Now, there's the gasket that goes around the roof and another seal that's part of the roof- which one are you referring to?
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9124660U00
American infiniti dealer wants 252$
Japan wants 160$
Partsouq advertising for 94$
Who here has done this job. Doesnt look to difficult but...