[urq] Fuel Tank Gravity Vent Valve Part #?

[Jon Archibald]

So I'm finally looking to replace this as I'm tired of using an old rag as
a ventilated gas cap to avoid my tank vacuum issue that destroyed my last
fuel pump. I will probably sanity-check that I don't have a clogged vent
line before ordering, but:

Is PN 161201753(A,B,D) the same as 155201753? Both appear to be the exact
same piece, and both are listed by ECS tuning as available, but the 155 PN
is a bit cheaper.

https://www.ecstuning.com/ES291041/?gclid=CJXorYu9n8gCFVGBfgodbesOJA

https://www.ecstuning.com/Search/SiteSearch/161201753/ES291842/

Has anyone else had a tank vacuum issue attributed to this valve?

Thanks for any comments,
Jon