PPV air leak part help

[Eric Koger]

Monacoers- I found a small air leak coming from a pressure protection valve on my 2003 Monaco Dynasty front air tank. It appears that the leak is coming from the seal/diaphragm area where the valve is bolted together. My air tank layout drawing indicates this is a 60# Webco #4112, but I don’t see this part on a web search. Does anyone know where one can find this part or an equivalent? Thanks everyone!

[jacwjames]

I went through issue on my 2002 Windsor in late 2021. Believe it or not all 4 PPV's started leaking on the same trip. Headed home and dove into replacing. This is what I used, KN31000. I bought mine from Advanced Auto part number is WAKN3100.



Here's a post I did on it starting when I found them leaking and ultimately making the decision to cut my trip short and head home
https://www.irv2.com/forums/f115/pre...ng-562359.html


Note that my original PPV's were oriented wrong, there spring portion should be mounted down, there is a weep hole in the cap. I took all four apart and the spring was severely corroded and the flaking possibly what caused them to start leaking.

[doublechevy]

just replaced PPV valves on my coach there were only 2 both leaking and installed incorrectly as previous poster stated

found and purchased on Amazon

[Eric Koger]

Thanks for the information! I have the parts on order and should be here in a couple days. And by the way, all of mine are also installed upside down! That must have been a very common issue!