2320 Leaking fluid from loader valve

[flatland freak]

I have a 2008 2320 that is leaking fluid where the hydro valves that runs loader behind pass tire mates with the tractor. I am wondering if there is a gasket there or a machine fit. It looks like there is two allen bolts that bolt the hydro valve to the tractor.

 

[Zebrafive]

O-Ring

 

[flatland freak]

thanks for quick reply, I take it you have to disconnect all four hydro lines and then remove valve to get at the o-ring as one of the allen bolts is behind one of the hydro lines.