I don't know what the correct part number is. I have not received the parts I need to finalize the fix ( not expected until late next week. I ordered both the ECO specified bolt (incase its different than mine) and the bottom bolt which is what I plan to install. You will not find this in your service manuals. You will find schematics, diagrams and some details of how it functions but no parts details. You need the parts manual for that.
From what I understand Kioti has a bypass kit that replaces the banjo bolts and hard line. This is their solution to the problem and what I believe kattywumpus has on his tractor. This is a dealer install only item so you need to bring your tractor in for service. Even after discussing and providing the details that I shared with y'all I was assured I am not qualified to install the parts. This must be done by an authorized Kioti service technician. I don't have the details of the kit but I am working on getting them. kattywumpus can you post any details or pictures???
I currently have my own version of a bypass installed with fittings made up from my local hydraulic shop. Once I have the new bolts and a parts manual I will post what works for me. This may not be what Kioti recommends so please check with your dealers.
I am happy to report after many hours of hard work with the tractor I have not heard a single squeal. I am noticing some very faint chirping and whirring though. The chirps occur while accelerating or traveling uphill mostly going forward. Reverse is scary quiet. I don't recall hearing this before but its hard to say cause I don't recall listening for it. I can also here the gears whirring now and I don't recall that before. Maybe it was masked by other noises because it seems much quieter all around in the cab. This may just be paranoia or over sensitivity after the 7 Month ordeal with the squeal. The sounds are not loud at all actually they are quieter than the power steering and loader circuits. I just hope this is normal and not a sign of damage from the 100 hours of restriction, low flow and cavitation.
Tom