Anyone recognize this fuel cap interface???

[anguilla1980]

This is on a custom fuel tank and the model/year of cap the vendor said it took is not anywhere near close.

I'm hoping someone will recognize this and please tell me what fuel cap I need to order. It's for a sealed cap (the tank is set up for external venting). The profile that it has is uniform all the way around.



Thanks in advance!



https://www.pro-touring.com/attachment.php?attachmentid=206901&d=1680910984
https://www.pro-touring.com/attachment.php?attachmentid=206902&d=1680911007

[camcojb]

Whose tank is it?

[camcojb]

The neck looks like a 95-2002 Blazer neck.

https://www.walmart.com/ip/Replacement-REPC671520-Fuel-Tank-Filler-Neck-Compatible-For-1995-2002-Chevrolet-Blazer-1995-2001-GMC-Jimmy-6Cyl-4-3L/440100683