I am looking for a overflow bottle cap for a Galant VR-4, but I believe the cap is the same for the DSM's. Maybe I am just rusty, but I spent an hour on CAPS last night and could not figure out the part number

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If anyone has one off a G-VR4 or a dsm I could try before I buy (see if it fits), I would appreciate it. I need it this week if possible. I know the 3000gt/stealth caps are not interchangeable, they are smaller diameter.
Best Regards,
-Josh