Power Steering Cap O-Ring?

[Bonkle]

I recently flushed my power steering and replaced my hose clamps, but I now have leaks coming from the cap. I have a 2011, and I noticed the parts diagrams show an O-ring in the cap for cars made after September 2011. Mine is not present, just wondering if anybody has a 2012+ and has this O-ring. Part number is 49176-JK00A, and I'm trying to figure out if I can find a used reservoir+cap with the O-ring, or if I should just order the O-ring alone.

[Ilya]

I would get the O-ring alone...it's doubtful anything is wrong with the cap.

[Bonkle]

Well, that's a $26 O-ring ordered. Hope that fixes most of the leaking.
Also, has anyone replaced their low pressure lines connected to the reservoir? Mine are starting to crack, and OEM ones are discontinued. I assume I can just use power steering hose of the same diameter?