Powerfab 1000X drive motor

[Bobisok21]

Can anyone help me source a new valve block which is attached to the drive motors on my Powerfab 1000X. I think it's a diverter valve, you'll see from the photos that's there's a lot of corrosion on them due to build up of dirt which was packed in when I bought he machine. Unbelievably they aren't leaking but when I remove one of the fittings I can see how thin the material is in relation to the internal bore/threads and feel they will leak in the future, so whilst I'm refurbishing the machine I'd like to replace with good second hand or new ones. It maybe they are the same as other models. I hope someone can help. Thanks