Any help on a filler tube to tank gasket ( O Ring) for my 86 t coupe
The old one may still work
Nissan discontinued , rock auto.. no
They are metric sized may have to try KIA they had many O rings on fuel

 

Are you talking about #40 on the below diagram? These guys still show it as available...

O-RING | Genuine Nissan | 17346-01P00

1734601P00 - Nissan

17346-01P00 / FAIRLADY Z / nissan | part detail?JP-CarParts.com

If truly no one has it, NAPA has a huge selection of O-rings. You can also try to match the size to an oil filter o-ring. A lot of BMW's use that same style o-ring for their top-mount oil filters.

 

Yes #40
We only have one dealer here that goes back to the eightys he said its defunct but I will try others thanks rust got the pump so need to coat the tank ,it is only two small spots