Originally Posted by funola

Don't know if these pics helps. I took them before taking apart my parts compressors to get the outer band to make a R4 press and also for future identification if there is a a future need before throwing the guts out.

Don't know if it means anything but the Delphi has the same SAE number as your Harrison.


Thanks for the pics. I guess that the SAE # has nothing to do with sealing washer size, because my old compressor was also a Delphi with the same port sizes as the one you posted. I misstated the brand of the old compressor in my first post, I thought that it was Behr.

Fortunately, it looks like I found the washer that I need. The O'reilly's near me has a good store manager, and he opened up some kits for me and found a black washer with the same inner and outer diameter as the red washer but thinner. The black washer fits into both ports. I'm waiting on a new drier, so I'm hoping to have everything sealed up by the end of next week and get a leak test in mid March.