3 point control valve

Does anyone know of a good site to cross reference website for hydraulic lift control valves? I'm looking to rebuild New Holland hydraulic lift/control valve part # MT40007577 (LS Part #40250285). I have been able to cross reference some parts on New Holland tractors but I haven't had any luck...

I found the handle of my JD 3025E compact tractor 3 point rate-of-drop valve completely unmovable when I tried to open it today. Read several posts about others having the same issue. They were on older tractors and caused by rust and/or debris (grit) from age. They were loosened with...

I have around 600 hrs on the tractor and over time the 3 point arms started to leak down while tractor is running. At first about every 30 seconds the implement would jump back up and gradually over time its happening every few seconds (after tractor is hot). I can turn the valve under the seat...