Thank you Drawthree, all those part numbers worked perfectly. Hydraulic filter is on and working, no leaks yet after a test run.
Quick question can't remember if I've seen it answered before: the Typhon type machines have a glass gauge on the hydraulic tank (left side hyd tank mount) that's both hydraulic fill level and temperature. Is the hydraulic fluid supposed to be filled to about the top of the gauge? Because mine came that way and after putting the filter on I added a little more to put it back to full again. The return port into the tank is a quart or two submerged when it's filled that far. Is this correct?