Fuel cap for 83 fc35

[tqwrench]

I went down this rabbit hole too. Have a look at this, they call out the ODM (outside diameter) of different fire hose threads. In your case a 2.5" fire hose cap would mate to a pipe with 2.841" OD pipe. Close enough to try? 8 threads per inch. I remember almost pulling the trigger on the Dixon website, but then someone came through with a spare oil fill tank cap for me instead. 2.5" NPSH cap. Give it a try? https://dixonvalve.com/sites/default...ogram_2016.pdf

[tqwrench]

Here you go, might be worth the $32 to give it a whirl: https://www.amazon.com/Dixon-FC250-N.../dp/B005YSPKWG

[Mike Hohnstein]

Tried it, no joy. Only option is change fill pipe to NPT thread.

[Bruce]

Do a search in this forum. There was a lengthy thread on this subject.

[CrashTestDummy]

I got a spare for our '80 from Coach Parts. Looks like he's out of stock at the moment. Perhaps email Dan and see if he's having trouble getting any, or just hasn't replaced inventory yet?

[curtsprenger]

Maybe -

https://www.amazon.com/Dixon-FC250-N.../dp/B005YSPKWG

[dlefty]

This thread: https://www.wanderlodgeownersgroup.c...ad.php?t=36255

I wrote the following:

Originally Posted by dlefty

If the PT has the same size and thread then 2 1/2 NPSH will be needed. I spent what seemed like 8 yrs trying to find one that fit. I ordered what I thought would work and it was NPT but it would not work. I called Motion Industries a distributor of DIXON and was able to find a 2 1/2 NPSH Brass Cap. It is exactly what BB used for my coach.

Barry, McMaster does not carry a NPSH cap only a NPT one.

I contacted Motion Industries located in Pelham NY but you maight find one closer to you. Good luck!

[Blue Moon]

https://www.wanderlodgeownersgroup.c...ad.php?t=41893

I do not know if anybody ever got in contact with this seller. He has 83 FC parts ...