There is indeed no part # for this pipe :-(
Anyway there should not be any leak unless you fill-up the filler pipe too, since the breather is connected to the top of the tank …
And BTW it's not mandatory to fill the tank to the throat, it even improves mpg to half fill it (less weight), assuming the fuel station is on your usual itinary …
Like Aurick said, why can't you use fuel grade replacement pipe ?
BRs, Bernie
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