[hbens]

Hi All, 

My toilet is leaking from the top part of the black part of this valve on coach #530. You can see the crack in the photo. I would like to just purchase this part. But I can only find the whole sequence value for sale. Does anyone know where to just buy the top part. Thanks in advance.

Tim,
I was able to purchase just the top cap if that is what is broken on yours. Mine cracked and water poured out of the valve. I bought an o-ring rebuild kit and a full rebuild kit for my 2nd toilet direct from them.
It took a while to sort through their web page though.

https://mullaney-associates.com/product/...build-kit/ 
https://mullaney-associates.com/product/...ap-closed/
https://mullaney-associates.com/product/...r-toilets/

Try these parts and links