Oliver 1555 power steering

[elk29d]

I have a '71 Oliver 1555 with the Char Lynn power steering pump. I need a new one but cannot find the part number. Does anyone know the specs I need to get a replacement/aftermarket. I know it is an open center system. it has 301 stamped on it.

 

[rrlund]

This isn't answering the question, but is that a loader special then with the belt driven pump? All the other 1555s run the power steering off the main hydraulic pump.

 

[B A Star]

Oliver / White farm part number: 30-3051927

Charlynn model number: UD4-31, Displacement per one steering wheel revolution: 7.4 cu. in.