Jeep used Sanden compressors in most XJs, YJs, ZJs TJs, WJs, and KJs. For Jeeps, there are only a couple of mounting configurations: one with four mounting bolts parallel to the compressor clutch like this one (typically mounted high and comically easy to get to on the passenger side), and another with four bolts perpendicular to the clutch (typically mounted low on the passenger side). We scored this little jewel off a Cherokee for $25 at the local self-serve junkyard, plus $5 core. Grab one that still has hoses attached and be sure it isn’t locked up. You should be able to spin the inner portion of the clutch by hand.