Anyone know which color B or R o-ring is for the pump and high pressure line fitting?

 

Not sure about color, i just replaced one o-ring at a time and set them side-by-side to make sure the new is identical to the old one.
Did you buy a set with all the o-rings like on rockauto?

 

Yep eBay. I changed them years ago and it didn't solve the issue. It be even whining for years and requires a monthly replacement of about a third of the reservoir replaced. I'm gonna drain the rack, replace the return hose and rings again, fill with new Honda fluid and bleed .

 

Google the part number or search an OEM vendor website for either #17


Or #23 below and you should find the differentiation of the colors & thus your answer?

 

Usually black is the high pressure fitting and what you are calling red (some people say orange) is the return line.