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Discussion Starter · #2 ·
Found in the Hydraulic drain pan after splitting the tractor case. I have no idea where it came from or where it would fit. This is from a 1970's model tractor. Need the help from an old time tractor mechanic. I have the parts book and still cannot identify it. Thanks in advance
 

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Those machines had pretty simple hydraulic systems, so I don't think there was any check valve in the remote circuits. I assume the power steering still works fine?

It's possible that it came from the hydraulic filter housing, or the internal bits that connect to the filter. I can't speak to that vintage, but modern filter housings always have a bypass check valve in case the filter plugs. If it's like my 1830, it's kind of cast into the transmission case.
 
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