O Rings for Spool on Left Hydraulic Pump - Model 853

[Greg19]

I removed the spool on the left pump due to a leak. There is a White Plastic Ring and rubber O Ring at the top of the spool underneath the spring that seats into the pump. The grooves above and below the indentation toward the bottom of the spool had no O Ring. Dealer couldn't find O Ring part numbers for the two grooves and wanted to sell me a new spool. Should the grooves above and below the indentation towards the bottom of the spool have O Rings? Thank you, Greg

 

[flyerdan]

In the manual thread there is a parts book for the 853, not sure if the serial number range will match yours but it should have most mechanical things the same.
According to the book, it looks like you need Bobcat p/n 25K-20020