I'd assume that an o-ring kit is only going to include the o-rings for the metal lines and fittings, not for the actual compressor itself. Napa has an o-ring kit for the Z32 that just comes with a bunch of small o-rings. I could be wrong, but if you're expecting that Nissan kit to include compressor rebuild parts, you'll probably be disappointed. Although my local Nissan dealership couldn't get that kit from Nissan anyway. They told me to try Courtesy Nissan...