Your photograph shows the oring on the JIC side of the fitting. The oring belongs on the STOR (straight thread o ring) side that threads into the pump.Thanks for asking
The machine is a 753 the fitting is #18 here: https://www.bobcatpartsonline.com/#/catalogBrowser?path=/0000-Loaders/0000-753/0004-515830001 & Above, 516220001 & Above/0004-Hydraulic System/0005-Manual Lift Release System (S/N 515830001 - 515840211, 516220001 - 516223851)
I need the one on the left, the factory sends out the one on the right, I can't get it to seat even with a new hose, the leak is small but steady. I'll pay $50 + shipping handling for an original replacement.
Thanks everyone,The o-ring at the tip of the fitting really does not matter. I have reinstall many hoses with out the smaller o-ring with no issue. For some reason Bobcat did this for a while, never knew why. Also JIC fitting never need an o-ring on the tapered side of the fitting unless you are using it as a substitute to a flat face fitting.
If it still leaks you may need to use the knew hose and the fitting on the right.